JP2011237921A - Signal control device and computer program - Google Patents

Signal control device and computer program Download PDF

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JP2011237921A
JP2011237921A JP2010107292A JP2010107292A JP2011237921A JP 2011237921 A JP2011237921 A JP 2011237921A JP 2010107292 A JP2010107292 A JP 2010107292A JP 2010107292 A JP2010107292 A JP 2010107292A JP 2011237921 A JP2011237921 A JP 2011237921A
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traffic volume
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saturation
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JP5604963B2 (en
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Mitsuo Matsumoto
充雄 松本
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Sumitomo Electric Industries Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a signal control device capable of flexibly changing an indication configuration in accordance with a traffic condition.SOLUTION: A calculation unit 101 selects main lane groups belonging to a straight direction and a left-turn direction from the respective main lane groups included in a main indication group, finds a total of main lane traffic amount in the main lane groups selected for each inflow passage, and finds an impeding traffic amount that is a difference (an absolute value of the difference) between the total main lane traffic amounts. Then, the calculation unit 101 determines whether or not a time difference indication is needed for the main indication group of interest by using the impeding traffic amount, a saturation traffic flow rate of each lane of inflow passages in the straight direction or in the left-turn direction corresponding to the main lane traffic amount including the impeding traffic amount, a yellow signal time for the inflow passages corresponding to the main lane traffic amount including the impeding traffic amount, a red signal time for the same inflow passages, a blue signal time with an assurance of minimum time difference that is a minimum blue signal time for the time difference indication at the same inflow passages, and a coefficient CO8 (Step S05).

Description

本発明は、交差点に設置された信号灯器を制御する信号制御装置に関する。   The present invention relates to a signal control device that controls a signal lamp installed at an intersection.

交通信号制御機に対する信号制御方式を、信号制御パラメータ（スプリット、サイクル長及びオフセット等）の設定方式の視点で大別すると、時間帯に応じて信号制御パラメータを設定する定周期制御と、交通状況に応じて信号制御パラメータを設定する交通感応制御の２種類がある。   Signal control methods for traffic signal controllers can be broadly classified from the viewpoint of setting method of signal control parameters (split, cycle length, offset, etc.), fixed-cycle control that sets signal control parameters according to time zones, and traffic conditions There are two types of traffic sensitive control that set signal control parameters according to the conditions.

ここで、サイクル長、スプリット、オフセットの各用語の定義は下記の通りである。
サイクル長：信号灯色の表示が一巡することを１サイクルといい、１サイクルの所要時間をサイクル長という。
スプリット：交差点の各流入路に対して与えられる通行権を現示といい、１サイクルに占める各現示の時間比率をスプリットという。
オフセット：幹線道路に沿って設置された幾つかの交通信号制御機を信号制御の単位として扱い、互いに一定の時間関係をもたせて制御する方式を系統制御といい、この系統制御において、各交通信号制御機の１サイクルの開始時点にもたせるずれをオフセットという。 Here, the definitions of the terms cycle length, split, and offset are as follows.
Cycle length: A cycle of displaying the signal lamp color is called one cycle, and the time required for one cycle is called a cycle length.
Split: The right of traffic given to each inflow path at the intersection is called “presentation”, and the time ratio of each presentation in one cycle is called “split”.
Offset: A system in which several traffic signal controllers installed along a main road are treated as a unit of signal control and controlled with a fixed time relationship with each other is called system control. In this system control, each traffic signal The deviation given to the starting point of one cycle of the controller is called offset.

このうち、後者の交通感応制御は、端末の交通信号制御機ごとに行う端末感応制御（ミクロ制御）と、路線系統制御或いは面制御される複数の交差点を対象に信号制御パラメータを変化させる中央感応制御（マクロ制御）に分類される。   Among these, the latter traffic sensitivity control is the terminal sensitivity control (micro control) performed for each traffic signal controller of the terminal and the central sensitivity that changes the signal control parameters for multiple intersections that are route system controlled or surface controlled. It is classified as control (macro control).

上記中央感応制御は、交通流の変動に対応した高度な系統制御や広域制御（面制御）を行えるため、交通量の時間変動が激しくかつ交通量が多く、高い交通処理効率が要求される道路に適用され、プログラム選択制御又はプログラム形成制御が採用される。   Since the above-mentioned central sensitive control can perform advanced system control and wide area control (surface control) corresponding to fluctuations in traffic flow, roads with high temporal traffic fluctuations, heavy traffic volumes, and high traffic processing efficiency are required. The program selection control or the program formation control is adopted.

プログラム選択制御とは、予め設定された複数のプログラムの中から、車両感知器情報に基づいてそのときの交通状態に最適な一つのプログラムを選択する方式である。また、プログラム形成制御とは、予め有限個のパラメータ値を設定するのではなく、車両感知器情報に基づいてオンラインで信号制御パラメータや信号表示の切り替えタイミングを決定する方式である。   The program selection control is a method of selecting one optimal program for a traffic state at that time from a plurality of preset programs based on vehicle sensor information. The program formation control is a method of determining signal control parameters and signal display switching timing online based on vehicle sensor information, instead of setting a finite number of parameter values in advance.

交通管制センターに設置された信号制御装置が行う中央感応制御では、一般にプログラム選択制御が採用されているが、これには次のような短所がある。
（１）パラメータの設計に多大な労力を要する。
（２）交通状況の経年変化で状況が大きく変化した時の再設計が必要となる。
（３）評価指標（交通量と占有率の加重和）が経験的かつ曖昧である。
（４）余裕を持たせるためにサイクル長が長くなる傾向にあり、無駄な青時間が発生したり、歩行者待ち時間が大きくなったりし易い。 In the central sensitive control performed by the signal control device installed in the traffic control center, program selection control is generally adopted, but this has the following disadvantages.
(1) A great deal of labor is required to design parameters.
(2) Redesign is required when the traffic situation changes greatly due to aging.
(3) The evaluation index (weighted sum of traffic volume and occupation rate) is empirical and ambiguous.
(4) The cycle length tends to be long in order to provide a margin, and it is easy for wasteful green time to occur or for the pedestrian waiting time to increase.

そこで、上記短所を解決するために、交通管制センターの信号制御装置が交通状況に応じてスプリット、サイクル長及びオフセット等の信号制御パラメータを自動的に更新するプログラム形成制御が行われており、この制御方式は、わが国において「ＭＯＤＥＲＡＴＯ（Ｍａｎａｇｅｍｅｎｔ ｂｙ Ｏｒｉｇｉｎ−ＤＥｓｔｉｎａｔｉｏｎ Ｒｅｌａｔｅｄ Ａｄａｐｔａｔｉｏｎ ｆｏｒ Ｔｒａｆｆｉｃ Ｏｐｔｉｍｉｚａｔｉｏｎ）制御」と呼ばれている（非特許文献１参照）。   Therefore, in order to solve the above disadvantages, a program control is performed in which the signal control device of the traffic control center automatically updates signal control parameters such as split, cycle length and offset according to traffic conditions. In Japan, the control method is referred to as “MODERATO (Management by Origin-Destination Related Adaptation for Traffic Optimization) control” (see Non-Patent Document 1).

「改訂 交通信号の手引き」 編集・発行 社団法人 交通工学研究会（１６〜１８頁、８３〜８７頁）"Revised Traffic Signal Guide" Editorial and publication Traffic Engineering Research Group (16-18, 83-87)

プログラム形成制御においては、通常、同じパターンの現示構成を繰り返し使用しており、それぞれの現示に与えるスプリットなどの信号制御パラメータを交通状況に応じて変えている。
図１６に従来の信号制御装置における現示構成の例を示す。
現示１（歩車）では、左右方向の流入路の車両と左右方向の横断歩道の歩行者に対して通行権が与えられる。
現示１（車両）では、左右方向の流入路の車両に対して通行権が与えられる。
現示２（歩車）では、上下方向の流入路の車両と上下方向の横断歩道の歩行者に対して通行権が与えられる。
現示２（車両）では、上下方向の流入路の車両に対して通行権が与えられる。
信号制御装置はこれらの４つの現示構成を毎サイクル使用しており、これらの４つの現示に与えるスプリットなどの信号制御パラメータを毎サイクルの交通状況に応じて変えている。 In the program formation control, normally, the present pattern configuration of the same pattern is repeatedly used, and the signal control parameters such as split given to the respective present patterns are changed according to the traffic situation.
FIG. 16 shows an example of the present configuration in a conventional signal control apparatus.
In the present indication 1 (pedestrian), the right to pass is given to vehicles on the inflow path in the left-right direction and pedestrians on the crosswalk in the left-right direction.
In the present indication 1 (vehicle), the right to pass is given to the vehicle in the inflow path in the left-right direction.
In the present indication 2 (pedestrian), the right to pass is given to the vehicles on the inflow path in the vertical direction and the pedestrians on the crosswalk in the vertical direction.
In the present indication 2 (vehicle), the right to pass is given to the vehicle in the inflow path in the vertical direction.
The signal control apparatus uses these four display configurations every cycle, and changes signal control parameters such as split given to these four displays according to the traffic situation of each cycle.

しかしながら、交通状況によっては異なるパターンの現示構成を使用した方が良い場合もあるが、従来の信号制御装置では柔軟に現示構成を変更することができなかった。   However, although it may be better to use a different configuration of the present configuration depending on the traffic situation, the conventional configuration cannot be changed flexibly with a conventional signal control device.

本発明は斯かる事情に鑑みてなされたものであり、交通状況によって柔軟に現示構成を変更することができる信号制御装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and an object of the present invention is to provide a signal control device that can flexibly change the present configuration according to traffic conditions.

第１発明に係る信号制御装置は、複数の流入路を有する交差点に設置された信号灯器を制御する信号制御装置であって、前記複数の流入路のうちの第１の流入路について、少なくとも直進方向を含む１又は複数の車線の交通量である第１交通量を算出する第１交通量算出手段と、前記複数の流入路のうちの前記第１の流入路に対向する第２の流入路について、少なくとも直進方向を含む１又は複数の車線の交通量である第２交通量を算出する第２交通量算出手段と、前記第１交通量と第２交通量とに基づいて、前記第１の流入路に対して通行権を与え、かつ、前記第２の流入路に対して通行権を与えない現示である第１時差現示を用いるか否かを判定する時差現示判定手段と、前記時差現示判定手段が前記第１時差現示を用いると判定した場合には、その第１時差現示を含む複数の現示を設定し、前記時差現示判定手段が前記第１時差現示を用いないと判定した場合には、その第１時差現示を含まない複数の現示を設定する現示設定手段と、前記現示設定手段が設定した複数の現示について、前記信号灯器を制御するための信号制御パラメータを算出する信号制御パラメータ算出手段とを備える（請求項１）。   A signal control device according to a first aspect of the present invention is a signal control device that controls a signal lamp installed at an intersection having a plurality of inflow passages, and at least straightly travels with respect to a first inflow passage of the plurality of inflow passages. A first traffic volume calculating means for calculating a first traffic volume that is a traffic volume of one or a plurality of lanes including a direction, and a second inflow path facing the first inflow path among the plurality of inflow paths. On the basis of the first traffic volume and the second traffic volume, the second traffic volume calculating means for calculating the second traffic volume that is the traffic volume of one or more lanes including at least the straight direction, Time difference indication determination means for determining whether or not to use the first time difference indication, which is an indication that gives the right of passage to the second inflow passage and does not give the right of passage to the second inflow passage; When the time difference indication determination means determines that the first time difference indication is used, Includes a plurality of indications including the first time difference indication, and if the time difference indication judging means determines not to use the first time difference indication, the first time difference indication is included. Display setting means for setting a plurality of indications not present, and signal control parameter calculation means for calculating a signal control parameter for controlling the signal lamp for the plurality of indications set by the display setting means. (Claim 1).

第１発明においては、第１の流入路における少なくとも直進方向を含む１又は複数の車線の交通量である第１交通量と、第１の流入路に対向する第２の流入路における少なくとも直進方向を含む１又は複数の車線の交通量である第２交通量とに基づいて、第１の流入路に対して通行権を与え、第２の流入路に対して通行権を与えない時差現示（第１時差現示）を用いるか否かを判定するので、交通状況に応じて柔軟に現示構成を変更することができる。   In the first invention, the first traffic volume, which is the traffic volume of one or more lanes including at least the straight direction in the first inflow path, and at least the straight direction in the second inflow path facing the first inflow path A time difference indicating that the right of traffic is given to the first inflow path and the right of traffic is not given to the second inflow path based on the second traffic volume that is the traffic volume of one or more lanes including Since it is determined whether or not (first time difference display) is used, the display configuration can be flexibly changed according to traffic conditions.

時差現示の要否の判定は、例えば、第１交通量と第２交通量との大小関係に基づいて行っても良いし、その差分である阻害交通量の大きさに基づいて行っても良いし、また、第１交通量を第１の流入路における所定の飽和交通流率で除して求めた第１飽和度と第２交通量を第２の流入路における所定の飽和交通流率で除して求めた第２飽和度との大小関係に基づいて行っても良いし、その差分の大きさに基づいて行っても良い。第１交通量、第２交通量は、車両感知器で計測した交通量だけでなく、第１の流入路、第２の流入路における渋滞の台数（例えば、渋滞長を車頭間隔で割って求めた台数）を加味しても良い。   Whether the time difference indication is necessary may be determined based on, for example, the magnitude relationship between the first traffic volume and the second traffic volume, or may be performed based on the magnitude of the obstructed traffic volume that is the difference. The first saturation and the second traffic volume obtained by dividing the first traffic volume by the predetermined saturation traffic flow rate in the first inflow path are determined to be the predetermined saturation traffic flow rate in the second inflow path. May be performed based on the magnitude relationship with the second saturation obtained by dividing by the above, or based on the magnitude of the difference. The first traffic volume and the second traffic volume are determined not only by the traffic volume measured by the vehicle detector, but also the number of traffic jams in the first and second inflow channels (for example, the length of the traffic jam is divided by the vehicle head interval). May be taken into account.

また、流入路における渋滞長は流入路における交通量と密接に関連する指標であるため、第１交通量、第２交通量には、第１の流入路における渋滞長、第２の流入路における渋滞長が含まれるものとする。従って、時差現示の要否の判定は、第１の流入路における渋滞長と第２の流入路における渋滞長との大小関係に基づいて行っても良いし、渋滞長の差分の大きさに基づいて行っても良い。   In addition, since the traffic jam length in the inflow channel is an index closely related to the traffic volume in the inflow channel, the first traffic volume and the second traffic volume include the traffic jam length in the first inflow channel and the second traffic channel. Congestion length is included. Therefore, the determination of whether or not the time difference indication is necessary may be performed based on the magnitude relationship between the traffic jam length in the first inflow channel and the traffic jam length in the second inflow channel, or the size of the difference in the traffic jam length. May be based on.

ここで、信号制御パラメータには、スプリット、サイクル長及びオフセット等が含まれる。サイクル長、スプリット、オフセットの各用語の定義は下記の通りである。
サイクル長：信号灯色の表示が一巡することを１サイクルといい、１サイクルの所要時間をサイクル長という。
スプリット：交差点の各流入路に対して与えられる通行権を現示といい、１サイクルに占める各現示の時間比率をスプリットという。
オフセット：幹線道路に沿って設置された幾つかの交通信号制御機を信号制御の単位として扱い、互いに一定の時間関係をもたせて制御する方式を系統制御といい、この系統制御において、各交通信号制御機の１サイクルの開始時点にもたせるずれをオフセットという。 Here, the signal control parameters include split, cycle length, offset, and the like. The definitions of the terms cycle length, split, and offset are as follows.
Cycle length: A cycle of displaying the signal lamp color is called one cycle, and the time required for one cycle is called a cycle length.
Split: The right of traffic given to each inflow path at the intersection is called “presentation”, and the time ratio of each presentation in one cycle is called “split”.
Offset: A system in which several traffic signal controllers installed along a main road are treated as a unit of signal control and controlled with a fixed time relationship with each other is called system control. In this system control, each traffic signal The deviation given to the starting point of one cycle of the controller is called offset.

前記信号制御装置は、前記第１交通量と前記第２交通量の差分である阻害交通量を算出する阻害交通量算出手段を備え、前記時差現示判定手段は、前記第１交通量が前記第２交通量よりも大きい場合には、前記阻害交通量に基づいて、前記第１時差現示を用いるか否かを判定し、前記第１交通量が前記第２交通量よりも小さい場合には、前記阻害交通量に基づいて、前記第２の流入路に対して通行権を与え、かつ、前記第１の流入路に対して通行権を与えない現示である第２時差現示を用いるか否かを判定し、前記現示設定手段は、
前記時差現示判定手段が第１時差現示を用いると判定した場合には、前記第１の流入路の少なくとも直進方向と前記第２の流入路の少なくとも直進方向との双方に通行権を与える現示である相互現示と、前記第１時差現示とを含む複数の現示を設定し、前記時差現示判定手段が第２時差現示を用いると判定した場合には、前記相互現示と、前記第２時差現示とを含む複数の現示を設定しても良い（請求項２）。 The signal control device includes inhibition traffic volume calculating means for calculating an inhibition traffic volume that is a difference between the first traffic volume and the second traffic volume, and the time difference display determination means is configured such that the first traffic volume is calculated as the first traffic volume. When larger than the second traffic volume, it is determined whether to use the first time difference display based on the obstructed traffic volume, and when the first traffic volume is smaller than the second traffic volume. The second time difference indication is a indication that gives the right of passage to the second inflow path and does not give the right of passage to the first inflow path based on the obstructed traffic volume. Whether to use the display setting means,
When it is determined that the time difference indication determination means uses the first time difference indication, the right of passage is given to both at least the straight direction of the first inflow path and at least the straight direction of the second inflow path. When a plurality of indications including a mutual indication which is a indication and the first time difference indication are set, and the time difference indication determining means determines that the second time difference indication is used, the mutual indication A plurality of indications including an indication and the second time difference indication may be set (claim 2).

第１交通量と第２交通量との差分である阻害交通量に基づいて、第１の流入路に対して通行権を与え、第２の流入路に対して通行権を与えない時差現示（第１時差現示）、又は、第２の流入路に対して通行権を与え、第１の流入路に対して通行権を与えない時差現示（第２時差現示）を用いるか否かを判定するので、交通状況に応じて柔軟に現示構成を変更することができる。   Based on the obstructed traffic volume that is the difference between the first traffic volume and the second traffic volume, the right of passage is given to the first inflow route, and the right of passage is not given to the second inflow route. (1st time difference display) or whether to use the time difference display (second time difference display) that gives the right of passage to the second inflow path and does not give the right of passage to the first inflow path Therefore, the present configuration can be flexibly changed according to the traffic situation.

前記信号制御装置は、前記第１交通量を前記第１の流入路における所定の飽和交通流率で除して第１飽和度を算出する第１飽和度算出手段と、前記第２交通量を前記第２の流入路における所定の飽和交通流率で除した第２飽和度を算出する第２飽和度算出手段と、前記第１飽和度と前記第２飽和度の小さい方を、前記相互現示の飽和度である相互現示飽和度として算出する相互現示飽和度算出手段と、前記第１飽和度と前記第２飽和度の大きい方から、前記相互現示飽和度を減じて、前記第１時差現示又は第２時差現示の飽和度である時差現示飽和度を算出する時差現示飽和度算出手段とを備え、前記信号制御パラメータ算出手段は、前記時差現示判定手段が第１時差現示又は第２時差現示を用いると判定した場合には、前記相互現示飽和度と前記時差現示飽和度とに基づいて前記信号制御パラメータを算出しても良い（請求項３）。   The signal control device is configured to divide the first traffic volume by a predetermined saturation traffic flow rate in the first inflow path to calculate a first saturation level, and to calculate the second traffic volume. A second saturation calculating means for calculating a second saturation divided by a predetermined saturated traffic flow rate in the second inflow channel, and the smaller of the first saturation and the second saturation is expressed as the mutual expression. A mutual display saturation calculating means for calculating a mutual display saturation which is a saturation of the display, and subtracting the mutual display saturation from the larger one of the first saturation and the second saturation, A time difference display saturation calculation means for calculating a time difference display saturation that is a saturation of the first time difference display or the second time difference display, and the signal control parameter calculation means includes the time difference display determination means. If it is determined that the first time difference indication or the second time difference indication is used, the mutual indication saturation May be calculated the signal control parameter on the basis of said time difference current 示飽 sum of (claim 3).

第１の流入路の少なくとも直進方向と第２の流入路の少なくとも直進方向との双方に通行権を与える相互現示においては、第１の流入路における第１飽和度（第１交通量を第１の流入路における所定の飽和交通流率で除したもの）と第２の流入路における第２飽和度（第２交通量を第２の流入路における所定の飽和交通流率で除したもの）の小さい方に相当する相互現示飽和度を用いて、スプリットなどの信号制御パラメータを算出するので、第１の流入路と第２の流入路のいずれにおいても無駄な青時間（青信号の時間）はほぼ生じない。
また、時差現示においては、第１飽和度と第２飽和度の大きい方から相互現示飽和度を減じた時差現示飽和度を用いて、スプリットなどの信号制御パラメータを算出する。この場合、第１の流入路と第２の流入路のうち、時差現示において通行権を与えられている流入路については、相互現示において捌くことができなかった交通量を捌くために通行権が与えられるので、無駄な青時間はほぼ生じないし、時差現示において通行権を与えられていない流入路については、そもそも青時間がないので、無駄な青時間は生じない。
このように、無駄な青時間を少なくして、効率良く交通流を制御することができる。 In the mutual display in which the right of passage is given to both at least the straight line direction of the first inflow path and at least the straight line direction of the second inflow path, the first saturation degree (the first traffic volume is the first traffic volume) in the first inflow path. Divided by a predetermined saturated traffic flow rate in the first inflow channel) and a second saturation degree in the second inflow channel (the second traffic volume divided by the predetermined saturated traffic flow rate in the second inflow channel). Since the signal control parameter such as split is calculated using the mutual display saturation corresponding to the smaller one, the wasteful blue time (blue signal time) in either the first inflow path or the second inflow path Hardly occurs.
In the time difference indication, a signal control parameter such as split is calculated using the time difference indication saturation obtained by subtracting the mutual indication saturation from the larger one of the first saturation and the second saturation. In this case, out of the first inflow path and the second inflow path, the inflow path that is given the right of passage in the time difference display is used to increase the traffic volume that could not be reached in the mutual display. Since the right is granted, there is almost no wasteful blue time, and there is no wasteful blue time in the first place for the inflow channel that is not given the right of passage in the time difference display.
In this way, it is possible to control the traffic flow efficiently by reducing wasted green time.

前記現示設定手段は、前記第１の流入路の右折方向と前記第２の流入路の右折方向との双方に通行権を与える右折現示をさらに含む複数の現示を設定し、前記信号制御装置は、前記第１交通量が前記第２交通量よりも大きい場合には、前記第１の流入路の右折方向の交通量を、前記第１の流入路における所定の飽和交通流率で除して、前記第１交通量が前記第２交通量よりも小さい場合には、前記第２の流入路の右折方向の交通量を、前記第２の流入路における所定の飽和交通流率で除して、前記第１時差現示又は前記第２時差現示における右折方向の飽和度である時差現示右折方向飽和度を算出する時差現示右折方向飽和度算出手段と、前記時差現示右折方向飽和度から前記時差現示飽和度を減じて、前記右折現示における飽和度の候補である右折現示第１候補飽和度を算出する右折現示第１候補飽和度算出手段と、前記第１交通量が前記第２交通量よりも大きい場合には、前記第２の流入路の右折方向の交通量を、前記第２の流入路における所定の飽和交通流率で除して、前記第１交通量が前記第２交通量よりも小さい場合には、前記第１の流入路の右折方向の交通量を、前記第１の流入路における所定の飽和交通流率で除して、前記右折現示における飽和度の候補である右折現示第２飽和度を算出する右折現示第２候補飽和度算出手段と、前記右折現示第１候補飽和度と前記右折現示第２候補飽和度の大きい方を、前記右折現示の飽和度である右折現示飽和度として算出する右折現示飽和度算出手段とを備え、前記信号制御パラメータ算出手段は、前記時差現示判定手段が第１時差現示又は第２時差現示を用いると判定した場合には、さらに右折現示飽和度に基づいて前記信号制御パラメータを算出しても良い（請求項４）。   The indication setting means sets a plurality of indications further including a right turn indication that gives a right of passage in both a right turn direction of the first inflow passage and a right turn direction of the second inflow passage, and the signal When the first traffic volume is larger than the second traffic volume, the control device determines the traffic volume in the right turn direction of the first inflow path at a predetermined saturated traffic flow rate in the first inflow path. In the case where the first traffic volume is smaller than the second traffic volume, the traffic volume in the right turn direction of the second inflow path is expressed by a predetermined saturated traffic flow rate in the second inflow path. A time difference indicating right turn direction saturation calculating means for calculating a time difference indicating right turn direction saturation in the first time difference indication or the second time difference indication, and the time difference indication. By subtracting the time difference display saturation from the right turn direction saturation, the saturation candidate in the right turn display A right turn first candidate saturation calculating means for calculating a right turn first candidate saturation, and a right turn of the second inflow path when the first traffic is greater than the second traffic. When the traffic volume in the direction is divided by a predetermined saturated traffic flow rate in the second inflow path, and the first traffic volume is smaller than the second traffic volume, a right turn of the first inflow path The right turn indication second that calculates the right turn indication second saturation that is the saturation candidate in the right turn indication by dividing the traffic volume in the direction by the predetermined saturation traffic flow rate in the first inflow path. Candidate saturation calculation means, and a right turn calculation for calculating the right turn display saturation which is the saturation of the right turn display, whichever is greater than the right turn display first candidate saturation and the right turn display second candidate saturation Indicating saturation level calculating means, and the signal control parameter calculating means is characterized in that the time difference indication determining means is Difference current 示又 When it is determined that using the second difference current-can be calculated the signal control parameters based on the further right turn current 示飽 sum of good (claim 4).

第１の流入路と第２の流入路のうち、時差現示において通行権を与えられている流入路については、時差現示において右折方向の交通量の一部又は全部が捌けているので、その次の右折現示においては、時差現示において捌け切れなかった右折方向の交通量を捌くことができれば良い。そのため、この流入路については、右折現示において右折方向の交通量を捌くための飽和度は、右折方向の交通量をこの流入路の所定の飽和交通流率で除して求めた時差現示右折方向飽和度から、時差現示における時差現示飽和度を減じて求めた右折現示第１候補飽和度となる。
一方、第１の流入路と第２の流入路のうち、時差現示において通行権を与えられていない流入路については、時差現示において右折方向の交通量は全く捌けていないので、その次の右折現示においては、右折方向の交通量の全てを捌くことができれば良い。そのため、この流入路については、右折現示において右折方向の交通量を捌くための飽和度は、右折方向の交通量をこの流入路の所定の飽和交通流率で除して求めた時差現示第２候補飽和度となる。
従って、最終的に右折現示において第１の流入路及び第２の流入路の右折方向の交通量を捌くための右折現示飽和度を、第１の流入路と第２の流入路のうち、時差現示において通行権を与えられている流入路における右折現示第１候補飽和度と、時差現時において通行権を与えられていない流入路における右折現示第２候補飽和度の大きい方とすれば、第１の流入路及び第２の流入路における右折方向の交通量を適切に捌くことができる。 Of the first inflow path and the second inflow path, for the inflow path that is given the right of passage in the time difference display, part or all of the traffic volume in the right turn direction is earned in the time difference display. In the next right turn display, it is sufficient if the traffic volume in the right turn direction that could not be achieved in the time difference display can be obtained. Therefore, for this inflow route, the saturation for driving the right turn in the right turn display is calculated by dividing the right turn direction traffic by the predetermined saturated traffic flow rate of this inflow route. The right turn indication first candidate saturation is obtained by subtracting the time difference indication saturation in the time difference indication from the right turn direction saturation.
On the other hand, of the first inflow path and the second inflow path, the traffic volume in the right turn direction in the time difference display is not earned at all for the inflow paths that are not given the right of traffic in the time difference display. In the right turn display, it is sufficient if all traffic in the right turn direction can be obtained. Therefore, for this inflow route, the saturation for driving the right turn in the right turn display is calculated by dividing the right turn direction traffic by the predetermined saturated traffic flow rate of this inflow route. It becomes the 2nd candidate saturation.
Therefore, in the final right turn, the right turn saturation for increasing the traffic volume in the right turn direction of the first inflow path and the second inflow path is calculated as the first inflow path and the second inflow path. The right turn first candidate saturation degree in the inflow route given the right of passage in the time difference indication and the right turn second indication candidate saturation degree in the inflow passage not given the right of passage in the time difference Then, the traffic volume in the right turn direction in the first inflow path and the second inflow path can be appropriately increased.

前記信号制御装置は、前記第１交通量が前記第２交通量よりも大きい場合には、前記阻害交通量を前記第１の流入路における所定の飽和交通流率で除して、前記第１交通量が前記第２交通量よりも小さい場合には、前記阻害交通量を前記第２の流入路の飽和交通流率で除して、前記阻害交通量が捌けるのに必要となる阻害交通量通行時間を算出する阻害交通量通行時間算出手段を備え、前記時差現示判定手段は、前記第１交通量が前記第２交通量よりも大きい場合には、前記第１の流入路における黄時間と当該流入路における赤時間と当該流入路における時差最小保証青時間との合計と、前記阻害交通量通行時間とに基づいて、前記第１時差現示を用いるか否かを判定し、前記第１交通量が前記第２交通量よりも小さい場合には、前記第２の流入路における黄時間と当該流入路における赤時間と当該流入路における時差最小保証青時間との合計と、前記阻害交通量通行時間とに基づいて、前記第２時差現示を用いるか否かを判定しても良い（請求項５）。   When the first traffic volume is larger than the second traffic volume, the signal control device divides the hindered traffic volume by a predetermined saturated traffic flow rate in the first inflow path, and When the traffic volume is smaller than the second traffic volume, the inhibitory traffic volume required for making the inhibited traffic volume by dividing the inhibited traffic volume by the saturated traffic flow rate of the second inflow path. The time difference display determination means includes a yellow time on the first inflow path when the first traffic volume is larger than the second traffic volume. And determining whether to use the first time difference indication based on the sum of the red time on the inflow route and the minimum guaranteed time difference on the inflow route and the obstructed traffic passage time, When the first traffic volume is smaller than the second traffic volume, the second traffic volume Whether to use the second time difference indication based on the sum of the yellow time on the incoming route, the red time on the inflow route, and the minimum guaranteed blue time on the inflow route, and the obstructed traffic passage time It may be determined (claim 5).

時差現示は、少なくとも黄時間と赤時間と最小の青時間である時差最小保証青時間との合計以上の時間を要する。阻害交通量を、第１の流入路と第２の流入路のうちの交通量の多い方の流入路の所定の飽和交通流率で除して求めた阻害交通量通行時間が、この合計よりも小さい場合には、せっかく時差現示を用いても、無駄な青時間が生じてしまう。一方、阻害交通量時間がこの合計以上であれば、時差現示を用いても、無駄な青時間が生じない。従って、阻害交通量通行時間とこの合計とを比較することにより、時差現示を用いる必要があるかを判定すれば、無駄な青時間を生じないように、適切な現示構成を用いることができる。   The time difference display requires at least a time that is at least the sum of the yellow time, the red time, and the minimum time difference guaranteed blue time that is the minimum blue time. The inhibition traffic volume passage time obtained by dividing the inhibition traffic volume by the predetermined saturated traffic flow rate of the inflow path with the larger traffic volume of the first inflow path and the second inflow path is calculated from this total. When the time difference is too small, even if the time difference display is used, useless blue time is generated. On the other hand, if the obstructed traffic time is greater than or equal to this total, useless time is not generated even if the time difference display is used. Therefore, if it is determined whether it is necessary to use the time difference display by comparing the obstructed traffic passage time and the total, it is possible to use an appropriate display configuration so as not to generate useless blue time. it can.

前記信号制御装置は、前記第１交通量と前記第２交通量とに基づいて、交通状態が閑散状態であるか否かを判定する交通状態判定手段を備え、前記時差現示判定手段は、さらに、前記交通状態判定手段が否と判定した場合に、前記第１時差現示を用いるか否か、あるいは、第２時差現示を用いるか否かを判定しても良い（請求項６）。   The signal control device includes traffic state determination means for determining whether the traffic state is a quiet state based on the first traffic volume and the second traffic volume, and the time difference display determination means includes: Furthermore, when the traffic state determination means determines NO, it may be determined whether the first time difference display is used or whether the second time difference display is used (Claim 6). .

交通状態が閑散状態であれば、時差現示を用いるまでもないからである。このように交通状態が閑散でないと判定した場合に、時差現示を用いるか否かを判定するので、時差現示を適切に用いて効率良く交通流を制御することができる。
交通状態が閑散状態であるか否かの判定は、例えば、次のように行う。まず、第１交通量を第１の流入路の所定の飽和交通流率で除して、当該第１交通量を捌くのに必要な時間である第１交通量通行時間を求める。そして、歩行者が横断歩道を渡るのに最低限必要な青信号の時間である歩行者最小保証青時間と、歩行者に対する青点滅信号の時間である歩行者点滅時間と、歩行者と車両のうちの歩行者のみに対する赤信号の時間である歩行者赤時間との合計を求め、この合計と第１交通量通行時間を比較する。この合計は、通行権を与えられた流入路の車両における最低限の青時間であるため、第１交通量がこの合計より小さい場合には、第１交通量は最低限の青時間で十分に捌けるだけの交通量に過ぎず、第１の流入路は閑散であると判定することができる。また、第２交通量を第２の流入路の所定の飽和交通流率で除して、当該第２交通量を捌くのに必要な時間である第２交通量通行時間を求める。第１の流入路と同様に、歩行者最小保証青時間と歩行者点滅時間と歩行者赤時間との合計を求め、この合計と第２交通量通行時間とを比較する。第２交通量通行時間がこの合計より小さい場合には、第２交通量は最低限の青時間で十分に捌けるだけの交通量に過ぎず、第２の流入路は閑散であると判定することができる。 This is because the time difference display is not necessary if the traffic state is quiet. As described above, when it is determined that the traffic state is not quiet, it is determined whether or not the time difference display is used. Therefore, the traffic flow can be efficiently controlled by appropriately using the time difference display.
The determination as to whether the traffic state is a quiet state is performed as follows, for example. First, the first traffic volume is divided by a predetermined saturated traffic flow rate of the first inflow path to obtain a first traffic volume travel time which is a time required to obtain the first traffic volume. And among pedestrians and vehicles, the pedestrian minimum guaranteed green time, which is the minimum green signal time required for a pedestrian to cross a pedestrian crossing, The total of the pedestrian red time, which is the time of the red signal for only the pedestrian, is obtained, and this total is compared with the first traffic passage time. Since this total is the minimum blue hour for vehicles on the inflow route that is given the right of traffic, if the first traffic volume is less than this total, the minimum traffic time is sufficient for the first traffic volume. It is only the amount of traffic that can be generated, and it can be determined that the first inflow path is quiet. Further, the second traffic volume is divided by a predetermined saturated traffic flow rate of the second inflow path to obtain a second traffic volume traffic time which is a time required for the second traffic volume. Similar to the first inflow path, the sum of the pedestrian minimum guaranteed green time, the pedestrian blinking time, and the pedestrian red time is obtained, and the total is compared with the second traffic volume transit time. If the second traffic volume is less than this total, determine that the second traffic volume is only enough to make money with a minimum of blue hours, and that the second inflow route is quiet. Can do.

第２発明に係るコンピュータプログラムは、コンピュータを、複数の流入路を有する交差点に設置された信号灯器を制御する信号制御装置として機能させるためのコンピュータプログラムであって、コンピュータを、前記複数の流入路のうちの第１の流入路について、少なくとも直進方向を含む１又は複数の車線の交通量である第１交通量を算出する第１交通量算出手段、前記複数の流入路のうちの前記第１の流入路に対向する第２の流入路について、少なくとも直進方向を含む１又は複数の車線の交通量である第２交通量を算出する第２交通量算出手段、前記第１交通量と第２交通量とに基づいて、前記第１の流入路に対して通行権を与え、かつ、前記第２の流入路に対して通行権を与えない現示である第１時差現示を用いるか否かを判定する時差現示判定手段、前記時差現示判定手段が前記第１時差現示を用いると判定した場合には、その第１時差現示を含む複数の現示を設定し、前記時差現示判定手段が前記第１時差現示を用いないと判定した場合には、その第１時差現示を含まない複数の現示を設定する現示設定手段、前記現示設定手段が設定した複数の現示について、前記信号灯器を制御するための信号制御パラメータを算出する信号制御パラメータ算出手段、として機能させるためのコンピュータプログラムである（請求項７）。   A computer program according to a second aspect of the present invention is a computer program for causing a computer to function as a signal control device for controlling a signal lamp installed at an intersection having a plurality of inflow passages. A first traffic volume calculating means for calculating a first traffic volume that is a traffic volume of one or a plurality of lanes including at least a straight direction, and the first of the plurality of inflow paths. A second traffic volume calculating means for calculating a second traffic volume that is a traffic volume of one or a plurality of lanes including at least a straight direction with respect to the second inflow path facing the inflow path of the vehicle, the first traffic volume and the second traffic volume; Whether or not to use the first time difference indication, which is a indication that gives the right of passage to the first inflow path and does not give the right of passage to the second inflow path based on the traffic volume. Judgment When the time difference indication determination means and the time difference indication determination means determine that the first time difference indication is used, a plurality of indications including the first time difference indication are set, and the time difference indication determination is performed. When the means determines not to use the first time difference display, a display setting means for setting a plurality of displays not including the first time difference display, and a plurality of currents set by the display setting means. The computer program for making it function as a signal control parameter calculation means for calculating the signal control parameter for controlling the signal lamp.

第２発明に係るコンピュータプログラムは、第１発明に係る信号制御装置と実質的に同一の発明に係るコンピュータプログラムである。   The computer program according to the second invention is a computer program according to the substantially same invention as the signal control device according to the first invention.

本発明によれば、交通状況によって柔軟に現示構成を変更することができる。   According to the present invention, the displayed configuration can be flexibly changed according to traffic conditions.

本発明に係る信号制御装置を含む交通信号制御システムの概要を示す模式図である。It is a schematic diagram which shows the outline | summary of the traffic signal control system containing the signal control apparatus which concerns on this invention. 本発明に係る信号制御装置の構成の一例を示すブロック図である。It is a block diagram which shows an example of a structure of the signal control apparatus which concerns on this invention. 各流入路の下流端の各車線と各流入路の基本車線群との対応の例である。It is an example of a correspondence between each lane at the downstream end of each inflow path and a basic lane group of each inflow path. 基本現示群の例である。It is an example of a basic display group. 各基本現示群の通常現示と閑散現示の組み合わせの例である。It is an example of a combination of normal display and quiet display of each basic display group. 信号制御パラメータ算出処理の手順を示すフローチャートである。It is a flowchart which shows the procedure of a signal control parameter calculation process. 各流入路の下流端の各車線における車種別の交通量の例である。It is an example of the traffic volume according to vehicle type in each lane of the downstream end of each inflow path. 各流入路の下流端の各車線における車線別車種換算交通量の例である。It is an example of the vehicle type conversion traffic volume according to lane in each lane of the downstream end of each inflow path. 各流入路の下流端の各車線における車線別飽和度の例である。It is an example of the saturation according to lane in each lane of the downstream end of each inflow path. 各流入路の各基本車線群における基本車線交通量の例である。It is an example of the basic lane traffic in each basic lane group of each inflow channel. 各流入路の各基本車線群における基本車線飽和度の例である。It is an example of the basic lane saturation in each basic lane group of each inflow channel. 各流入路の下流端の車線と各流入路の基本車線群との対応の例である。It is an example of a response | compatibility with the lane of the downstream end of each inflow path, and the basic lane group of each inflow path. 基本現示群の交通状態の判定の例である。It is an example of determination of the traffic state of a basic indication group. 基本現示飽和度の例である。It is an example of basic display saturation. 基本現示飽和度、交差点飽和度、スプリットの例である。This is an example of basic display saturation, intersection saturation, and split. 従来の信号制御装置における現示構成の例である。It is an example of the present structure in the conventional signal control apparatus.

〔実施形態１〕
以下、本発明の実施の形態を、添付図面を参照しながら詳細に説明する。図１は、本発明に係る信号制御装置を含む交通信号制御システムの概要を示す模式図である。交通信号制御システムは、信号制御装置１、交通信号制御機２、信号灯器３、車両感知器４、非接触タグ５、車両６などを含むものである。信号制御装置１は、交通管制センター内に設置されており、複数の交差点ＩＳのそれぞれに設置された交通信号制御機２と電話回線などの通信回線を介して接続されている。なお、信号制御装置１は、交通管制センター内に設置されず、道路上に設置されていても良い。信号灯器３は、交差点ＩＳにおける複数の流出路ＲＯ１、流出路ＲＯ２、流出路ＲＯ３、流出路ＲＯ４（以下、これらの流出路をまとめて「流出路ＲＯｉ（ｉ＝１〜４）」と表現する。）のそれぞれの上流端（交差点ＩＳ側の端）付近に設置され、交通信号制御機２と電力線などで接続されている。信号灯器３には、車両灯器と歩行者灯器が含まれている。車両感知器４は、交差点ＩＳにおける複数の流入路ＲＩ１、流入路ＲＩ２、流入路ＲＩ３、流入路ＲＩ４（以下、これらの流入路をまとめて「流入路ＲＩｉ（ｉ＝１〜４）」と表現する。）のそれぞれにおける停止線ＳＴ１、停止線ＳＴ２、停止線ＳＴ３、停止線ＳＴ４（（以下、これらの停止線をまとめて「停止線ＳＴｉ（ｉ＝１〜４）」と表現する。）付近、これらの流入路ＲＩｉ（ｉ＝１〜４）のそれぞれの上流端、流出路ＲＯｉ（ｉ＝１〜４）のそれぞれの上流端に設置されており、信号制御装置１と電話回線などの通信回線を介して接続されている。また、横断歩道ＣＲ１が流入路ＲＩ１と流出路ＲＯ１にまたがって設置され、同様に、横断歩道ＣＲ２が流入路ＲＩ２と流出路ＲＯ２に、横断歩道ＣＲ３が流入路ＲＩ３と流出路ＲＯ３に、横断歩道ＣＲ４が流入路ＲＩ４と流出路ＲＯ４に、それぞれまたがって設置されている。車両６には非接触タグ５が搭載されている。なお、流入路や流出路の数など交差点ＩＳの構成は一例であって、これに限定されるものではない。 Embodiment 1
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic diagram showing an outline of a traffic signal control system including a signal control device according to the present invention. The traffic signal control system includes a signal control device 1, a traffic signal controller 2, a signal lamp 3, a vehicle sensor 4, a non-contact tag 5, a vehicle 6, and the like. The signal control device 1 is installed in a traffic control center, and is connected to a traffic signal controller 2 installed at each of a plurality of intersections IS via a communication line such as a telephone line. The signal control device 1 may be installed on the road instead of being installed in the traffic control center. The signal lamp 3 represents a plurality of outflow paths RO1, outflow paths RO2, outflow paths RO3, and outflow paths RO4 at the intersection IS (hereinafter, these outflow paths are collectively referred to as “outflow paths ROi (i = 1 to 4)”). )) Near each upstream end (end on the intersection IS side) and connected to the traffic signal controller 2 by a power line or the like. The signal lamp 3 includes a vehicle lamp and a pedestrian lamp. The vehicle detector 4 represents a plurality of inflow paths RI1, inflow paths RI2, inflow paths RI3, inflow paths RI4 (hereinafter, these inflow paths are collectively referred to as “inflow paths RIi (i = 1 to 4)” at the intersection IS. In the vicinity of the stop line ST1, stop line ST2, stop line ST3, stop line ST4 (hereinafter, these stop lines are collectively referred to as “stop line STi (i = 1 to 4)”). Are installed at the upstream ends of the inflow paths RIi (i = 1 to 4) and the upstream ends of the outflow paths ROi (i = 1 to 4), and communicate with the signal control device 1 through a telephone line or the like. In addition, the pedestrian crossing CR1 is installed across the inflow path RI1 and the outflow path RO1, and similarly, the pedestrian crossing CR2 is in the inflow path RI2 and the outflow path RO2, and the pedestrian crossing CR3 is inflow path. RI3 and outflow R 3, a pedestrian crossing CR4 is installed across the inflow path RI4 and the outflow path RO4, and a non-contact tag 5 is mounted on the vehicle 6. It should be noted that the number of inflow paths and outflow paths is the intersection IS. This configuration is an example, and the present invention is not limited to this.

非接触タグ５は、車両６の本体（ダッシュボード等）、又は車両６に必ず備えられることを義務付けられた物品（例えば、ナンバープレートや自動車検査証）に埋め込まれている。非接触タグ５は、データを記録することができるＩＣチップを内蔵し、無線により電力供給やデータ伝送を行う。ＩＣチップには、車両６の車両登録番号（例えば、「大阪５００ あ １２３４」など）、種類（例えば、普通車、大型貨物車、乗用バスなど）、長さ、幅、高さ、重量などの車両基礎情報が記録されているとともに、タグ自身を識別するためのタグＩＤが記録されている。   The non-contact tag 5 is embedded in a main body (dashboard or the like) of the vehicle 6 or an article (for example, a license plate or an automobile inspection certificate) that is required to be provided in the vehicle 6. The non-contact tag 5 incorporates an IC chip capable of recording data, and wirelessly supplies power and transmits data. The IC chip includes a vehicle registration number of the vehicle 6 (for example, “Osaka 500 a 1234”, etc.), a type (for example, a normal car, a large freight car, a passenger bus, etc.), a length, a width, a height, a weight, etc. The vehicle basic information is recorded, and a tag ID for identifying the tag itself is recorded.

車両６には、非接触タグ５のＩＣチップにデータを記録することができる書込装置（不図示）が搭載されており、この書込装置は、所定の周期（例えば、１秒）毎に、車両６の車輪速センサから速度情報を取得し、この速度情報を非接触タグ５のＩＣチップに記録する。以下、非接触タグ５のＩＣチップに記録されているタグＩＤ、車両基礎情報、速度情報をまとめて車両情報と呼ぶ。   The vehicle 6 is equipped with a writing device (not shown) capable of recording data on the IC chip of the non-contact tag 5, and this writing device is provided every predetermined cycle (for example, 1 second). The speed information is acquired from the wheel speed sensor of the vehicle 6 and this speed information is recorded on the IC chip of the non-contact tag 5. Hereinafter, the tag ID, vehicle basic information, and speed information recorded on the IC chip of the non-contact tag 5 are collectively referred to as vehicle information.

車両感知器４は、非接触タグ５に記録されている車両情報を読み取る読取装置４ａと、読取装置４ａを制御する制御装置４ｂとを含んでいる。制御装置４ｂは、自己の車両感知器４を識別するための感知器ＩＤを、制御装置４ｂ内の記憶部に記録している。読取装置４ａは、流入路ＲＩｉ（ｉ＝１〜４）の上流端、流入路ＲＩｉ（ｉ＝１〜４）の下流端の車線１（直進、左折用車線）及び車線２（右折用車線）、流出路ＲＯｉ（ｉ＝１〜４）の上流端に設置されており、真下を通過する車両６の非接触タグ５に電力を供給するとともに、非接触タグ５に記録されている車両情報を読み取るようになっている。読取装置４ａは、読み取った車両情報を制御装置４ｂに送信する。制御装置４ｂは、車両情報を受信すると、受信した時刻と受信した車両情報とを対にして制御装置４ｂの記憶部に記録するとともに、受信した車両情報の数を１つカウントアップし、車両６の交通量として同記憶部に記録する。制御装置４ｂは、所定の周期（例えば、１分や１サイクル）の間、この処理を行ったあと、記憶部に記録している感知器ＩＤ、受信時刻と車両情報のすべての対、交通量を、感知器情報として信号制御装置１に送信する。   The vehicle sensor 4 includes a reading device 4a that reads vehicle information recorded in the non-contact tag 5, and a control device 4b that controls the reading device 4a. The control device 4b records a sensor ID for identifying its own vehicle sensor 4 in a storage unit in the control device 4b. The reading device 4a includes an upstream end of the inflow path RIi (i = 1 to 4), a lane 1 (straight forward, left turn lane) and a lane 2 (right turn lane) at the downstream end of the inflow path RIi (i = 1 to 4). , Installed at the upstream end of the outflow path ROi (i = 1 to 4), supplies electric power to the non-contact tag 5 of the vehicle 6 that passes underneath, and vehicle information recorded in the non-contact tag 5 It is supposed to read. The reading device 4a transmits the read vehicle information to the control device 4b. When receiving the vehicle information, the control device 4b records the received time and the received vehicle information in a pair in the storage unit of the control device 4b, counts up the received vehicle information by one, and sets the vehicle 6 The traffic volume is recorded in the storage unit. The control device 4b performs this processing for a predetermined period (for example, 1 minute or 1 cycle), and then records all pairs of sensor ID, reception time and vehicle information recorded in the storage unit, and traffic volume. Is transmitted to the signal control device 1 as sensor information.

信号制御装置１は、車両感知器４から所定の周期（１分や１サイクル）ごとに感知器情報を取得する。信号制御装置１は、所定の周期（例えば、１分や１サイクル）ごとに、取得した感知器情報に含まれる感知器ＩＤ、受信時刻と車両情報の対、交通量に基づいて、後述する信号制御パラメータ算出処理を行って、信号制御パラメータを算出する。信号制御パラメータには、サイクル長（信号灯色の表示が一巡することを１サイクルといい、１サイクルの所要時間をサイクル長という）、スプリット（交差点の各流入路に対して与えられる通行権を現示といい、１サイクルに占める各現示の時間比率をスプリットという）、オフセット（幹線道路に沿って設置された幾つかの交通信号制御機を信号制御の単位として扱い、互いに一定の時間関係をもたせて制御する方式を系統制御といい、この系統制御において、各交通信号制御機の１サイクルの開始時点にもたせるずれをオフセットという）をはじめ、各現示の灯色及び秒数に関する情報などが含まれる。信号制御パラメータには、予め設定されたサイクル長、スプリット、オフセットの組み合わせパターンの情報が含まれていても良い。信号制御装置１は、算出した信号制御パラメータの情報を含む信号制御指令を交通信号制御機２に送信する。   The signal control device 1 acquires sensor information from the vehicle sensor 4 every predetermined period (one minute or one cycle). The signal control device 1 performs a signal to be described later based on a sensor ID, a reception time and vehicle information pair included in the acquired sensor information, and a traffic volume every predetermined period (for example, one minute or one cycle). A control parameter calculation process is performed to calculate a signal control parameter. The signal control parameters include the cycle length (one cycle of the signal lamp color display is called one cycle, the time required for one cycle is called the cycle length), split (the right of access given to each inflow path at the intersection). The time ratio of each display occupying one cycle is called split, and offset (several traffic signal controllers installed along the main road are treated as a unit of signal control. System control is called system control, and in this system control, the deviation that is given to the start of one cycle of each traffic signal controller is called offset), and information on the lamp color and the number of seconds of each display included. The signal control parameter may include information on a combination pattern of a preset cycle length, split, and offset. The signal control device 1 transmits a signal control command including information on the calculated signal control parameter to the traffic signal controller 2.

交通信号制御機２は、信号制御装置１から受信した信号制御指令に基づいて信号灯器３の各信号灯の点灯、消灯及び点滅を制御する。   The traffic signal controller 2 controls lighting, extinguishing and blinking of each signal lamp of the signal lamp device 3 based on the signal control command received from the signal control device 1.

以下、信号制御装置１について詳細に説明する。図２は本発明に係る信号制御装置の構成の一例を示すブロック図である。信号制御装置１は、演算部１０１、記憶部１０２、受信部１０３、送信部１０４などを備える。   Hereinafter, the signal control device 1 will be described in detail. FIG. 2 is a block diagram showing an example of the configuration of the signal control apparatus according to the present invention. The signal control device 1 includes a calculation unit 101, a storage unit 102, a reception unit 103, a transmission unit 104, and the like.

演算部１０１は、１又は複数のマイクロコンピュータから構成されており、装置全体の制御を行う。また、演算部１０１は、後述する信号制御パラメータ算出処理など、各種の演算処理を行う。
受信部１０３は、車両感知器４から感知器情報を受信する。
送信部１０４は、信号制御指令を交通信号制御機２に送信する。 The arithmetic unit 101 is composed of one or a plurality of microcomputers and controls the entire apparatus. In addition, the calculation unit 101 performs various calculation processes such as a signal control parameter calculation process described later.
The receiving unit 103 receives sensor information from the vehicle sensor 4.
The transmission unit 104 transmits a signal control command to the traffic signal controller 2.

記憶部１０２は、メモリ、ハードディスクなどから構成されており、コンピュータプログラムＰＧを記憶している。演算部１０１のコンピュータは、記憶部１０２からコンピュータプログラムＰＧを読み出して実行することにより、上記の各種の演算処理を行うことができる。
記憶部１０２は、演算部１０１が演算した結果や受信部１０３が受信した情報などを記録する。
また、記憶部１０２には、各流入路ＲＩｉ（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）と、各流入路ＲＩｉ（ｉ＝１〜４）において交差点を通過する時に同一に通行権を提供できる車線群である基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）とが対応付けられて記憶されている。 The storage unit 102 includes a memory, a hard disk, and the like, and stores a computer program PG. The computer of the calculation unit 101 can perform the various calculation processes described above by reading the computer program PG from the storage unit 102 and executing it.
The storage unit 102 records a result calculated by the calculation unit 101, information received by the reception unit 103, and the like.
In addition, the storage unit 102 passes through the intersection in each lane j (j = 1 to 2) at the downstream end of each inflow path RIi (i = 1 to 4) and each inflow path RIi (i = 1 to 4). The basic lane group BDik (i = 1 to 4, k = 1 to 2), which is the lane group that can provide the same right of traffic at the same time, is stored in association with each other.

図３は各流入路の下流端の各車線と各流入路の基本車線群との対応の例である。
流入路ＲＩ１には、直進方向と左折方向とから構成される基本車線群ＢＤ１１と、右折方向から構成される基本車線群ＢＤ１２があり、流入路ＲＩ１の車線１は基本車線群ＢＤ１１に、流入路ＲＩ１の車線２は基本車線群ＢＤ１２に対応付けられている。
流入路ＲＩ２には、直進方向と左折方向とから構成される基本車線群ＢＤ２１と、右折方向から構成される基本車線群ＢＤ２２があり、流入路ＲＩ２の車線１は基本車線群ＢＤ２１に、流入路ＲＩ２の車線２は基本車線群ＢＤ２２に対応付けられている。
流入路ＲＩ３には、直進方向と左折方向とから構成される基本車線群ＢＤ３１と、右折方向から構成される基本車線群ＢＤ３２があり、流入路ＲＩ３の車線１は基本車線群ＢＤ３１に、流入路ＲＩ３の車線２は基本車線群ＢＤ３２に対応付けられている。
流入路ＲＩ４には、直進方向と左折方向とから構成される基本車線群ＢＤ４１と、右折方向から構成される基本車線群ＢＤ４２があり、流入路ＲＩ４の車線１は基本車線群ＢＤ４１に、流入路ＲＩ４の車線２は基本車線群ＢＤ４２に対応付けられている。 FIG. 3 is an example of the correspondence between the lanes at the downstream end of each inflow path and the basic lane group of each inflow path.
The inflow path RI1 includes a basic lane group BD11 composed of a straight direction and a left turn direction, and a basic lane group BD12 composed of a right turn direction. The lane 1 of the inflow path RI1 is connected to the basic lane group BD11. The lane 2 of RI1 is associated with the basic lane group BD12.
The inflow path RI2 includes a basic lane group BD21 composed of a straight direction and a left turn direction, and a basic lane group BD22 composed of a right turn direction. The lane 1 of the inflow path RI2 is connected to the basic lane group BD21. The lane 2 of RI2 is associated with the basic lane group BD22.
The inflow path RI3 includes a basic lane group BD31 composed of a straight direction and a left turn direction, and a basic lane group BD32 composed of a right turn direction. The lane 1 of the inflow path RI3 is connected to the basic lane group BD31. The lane 2 of RI3 is associated with the basic lane group BD32.
The inflow path RI4 includes a basic lane group BD41 composed of a straight direction and a left turn direction, and a basic lane group BD42 composed of a right turn direction. The lane 1 of the inflow path RI4 is connected to the basic lane group BD41. The lane 2 of RI4 is associated with the basic lane group BD42.

また、記憶部１０２には、各流入路ＲＩｉ（ｉ＝１〜４）に対して、同一現示を与えても良い基本車線群をまとめたものである基本現示群ＢＧｍ（ｍ＝１〜２）が記憶されている。
図４は基本現示群の例である。基本現示群ＢＧ１は流入路ＲＩ２と流入路ＲＩ４に関連する基本車線群ＢＤ２１、基本車線群ＢＤ４１、基本車線群ＢＤ２２、基本車線群ＢＤ４２から構成されており、基本現示群ＢＧ２は流入路ＲＩ１と流入路ＲＩ３に関連する基本車線群ＢＤ１１、基本車線群ＢＤ３１、基本車線群ＢＤ１２、基本車線群ＢＤ３２から構成されている。 Further, in the storage unit 102, a basic indication group BGm (m = 1 to 1), which is a collection of basic lane groups that may be given the same indication to each inflow path RIi (i = 1 to 4). 2) is stored.
FIG. 4 is an example of the basic display group. The basic indication group BG1 includes a basic lane group BD21, a basic lane group BD41, a basic lane group BD22, and a basic lane group BD42 related to the inflow channel RI2 and the inflow channel RI4. The basic indication group BG2 is the inflow channel RI1. And a basic lane group BD11, a basic lane group BD31, a basic lane group BD12, and a basic lane group BD32 related to the inflow path RI3.

また、記憶部１０２には、各基本現示群ＢＧｍ（ｍ＝１〜２）について、通常時の現示である通常現示と、閑散時の現示である閑散現示の組み合わせが記憶されている。
図５は各基本現示群の通常現示と閑散現示の組み合わせの例である。
基本現示群ＢＧ１の通常現示は１パターンの基本現示（現示ＧＪ１＿１）、３パターンの付加現示（現示ＧＪ１＿２Ａ、現示ＧＪ１＿２Ｂ、現示ＧＪ１＿２Ｃ）、１パターンの右折現示（現示ＧＪ１＿３）から構成されている。基本現示（現示ＧＪ１＿１）では、流入路ＲＩ２と流入路ＲＩ４の双方の直進方向と左折方向の車両と横断歩道ＣＲ１、横断歩道ＣＲ３の歩行者に対して通行権が与えられる。付加現示については、図５の上から順に、流入路ＲＩ２の全方向（直進方向、左折方向、右折方向）の車両に通行権が与えられ、流入路ＲＩ４の車両には通行権が与えられないパターン（現示ＧＪ１＿２Ａ）、流入路ＲＩ２と流入路ＲＩ４の双方の直進方向と左折方向の車両に通行権が与えられるパターン（現示ＧＪ１＿２Ｂ）、流入路ＲＩ２の車両に通行権が与えられず、流入路ＲＩ４の全方向（直進方向、左折方向、右折方向）の車両に通行権が与えられるパターン（現示ＧＪ１＿２Ｃ）の３つがあり、流入路ＲＩ２と流入路ＲＩ４の交通状況に応じて、後述する信号制御パラメータ算出処理にてそのうちの１つが選択される。右折現示（現示ＧＪ１＿３）では、流入路ＲＩ２と流入路ＲＩ４の右折方向の車両に対して通行権が与えられる。 In addition, for each basic display group BGm (m = 1 to 2), the storage unit 102 stores a combination of a normal display that is a normal display and a light display that is a free display. ing.
FIG. 5 is an example of a combination of the normal display and the quiet display of each basic display group.
The normal display of the basic display group BG1 is one pattern basic display (present GJ1_1), three additional displays (present GJ1_2A, present GJ1_2B, present GJ1_2C), one pattern right turn display (current GJ1_3). In the basic display (present GJ1_1), the right to pass is given to the pedestrians in the pedestrian crossing CR1 and the pedestrian crossing CR3 in the straight direction and the left turn direction of both the inflow path RI2 and the inflow path RI4. With regard to the additional indication, in order from the top of FIG. 5, the right of traffic is given to the vehicles in all directions (straight direction, left turn direction, right turn direction) of the inflow path RI2, and the right of traffic is given to the vehicles of the inflow path RI4. No pattern (present GJ1_2A), a pattern (present GJ1_2B) in which right-of-way vehicles are given to both the inflow path RI2 and the inflow path RI4 and right turn directions, and no right to pass is given to vehicles in the inflow path RI2. , There are three patterns (present GJ1_2C) in which right of passage is given to vehicles in all directions (straight direction, left turn direction, right turn direction) of the inflow path RI4, and depending on the traffic conditions of the inflow path RI2 and the inflow path RI4, One of them is selected in signal control parameter calculation processing described later. In the right turn indication (present indication GJ1_3), the right to pass is given to vehicles in the right turn direction of the inflow path RI2 and the inflow path RI4.

基本現示群ＢＧ１の閑散現示には、閑散現示１ａと閑散現示１ｂの２種類がある。閑散現示１ａは１パターンの基本現示、１パターンの右折現示から構成されており、付加現示はない。基本現示では、流入路ＲＩ２と流入路ＲＩ４の双方の直進方向と左折方向の車両と横断歩道ＣＲ１、横断歩道ＣＲ３の歩行者に対して通行権が与えられる。右折現示では、流入路ＲＩ２と流入路ＲＩ４の双方の右折方向の車両に対して通行権が与えられる。閑散現示１ｂは１パターンの基本現示のみで構成されており、付加現示、右折現示はない。基本現示では、流入路ＲＩ２と流入路ＲＩ４の双方の全方向（直進方向、左折方向、右折方向）の車両と横断歩道ＣＲ１、横断歩道ＣＲ３の歩行者に対して通行権が与えられる。後述する信号制御パラメータ算出処理にて閑散現示１ａ、閑散現示１ｂのいずれかが選択されるようになっている。   There are two types of quiet indications of the basic indication group BG1, namely a quiet indication 1a and a quiet indication 1b. The light display 1a is composed of one basic display, one right turn display, and no additional display. In the basic display, the right of passage is given to the vehicles in the straight direction and the left turn direction of both the inflow path RI2 and the inflow path RI4, and pedestrians of the pedestrian crossing CR1 and the pedestrian crossing CR3. In the right turn display, the right to pass is given to vehicles in the right turn direction of both the inflow path RI2 and the inflow path RI4. The light display 1b is composed of only one basic display, and there is no additional display or right turn display. In the basic display, the right to pass is given to vehicles in all directions (straight direction, left turn direction, right turn direction) of both the inflow path RI2 and the inflow path RI4 and pedestrians in the pedestrian crossing CR1 and pedestrian crossing CR3. Either the quiet indication 1a or the quiet indication 1b is selected in the signal control parameter calculation process described later.

基本現示群ＢＧ２の通常現示は１パターンの基本現示（現示ＧＪ２＿１）、３パターンの付加現示（現示ＧＪ２＿２Ａ、現示ＧＪ２＿２Ｂ、現示ＧＪ２＿２Ｃ）、１パターンの右折現示（現示ＧＪ２＿３）から構成されている。基本現示（現示ＧＪ２＿１）では、流入路ＲＩ１と流入路ＲＩ３の双方の直進方向と左折方向の車両と横断歩道ＣＲ２、横断歩道ＣＲ４の歩行者に対して通行権が与えられる。付加現示については、図５の上から順に、流入路ＲＩ１の全方向（直進方向、左折方向、右折方向）の車両に通行権が与えられ、流入路ＲＩ３の車両には通行権が与えられないパターン（現示ＧＪ２＿２Ａ）、流入路ＲＩ１と流入路ＲＩ３の双方の直進方向と左折方向の車両に通行権が与えられるパターン（現示ＧＪ２＿２Ｂ）、流入路ＲＩ１の車両に通行権が与えられず、流入路ＲＩ３の全方向（直進方向、左折方向、右折方向）の車両に通行権が与えられるパターン（現示ＧＪ２＿２Ｃ）の３つがあり、流入路ＲＩ１と流入路ＲＩ３の交通状況に応じて、後述する信号制御パラメータ算出処理にてそのうちの１つが選択される。右折現示（現示ＧＪ２＿３）では、流入路ＲＩ１と流入路ＲＩ３の双方の右折方向の車両に対して通行権が与えられる。   The normal display of the basic display group BG2 is one pattern basic display (present GJ2_1), three additional displays (present GJ2_2A, present GJ2_2B, present GJ2_2C), and one right turn display (current GJ2_3). In the basic indication (present indication GJ2_1), the right of passage is given to the vehicles in the straight direction and the left turn direction of both the inflow path RI1 and the inflow path RI3, and pedestrians in the pedestrian crossing CR2 and the pedestrian crossing CR4. With regard to the additional display, in order from the top of FIG. 5, the right of passage is given to vehicles in all directions (straight direction, left turn direction, right turn direction) of the inflow path RI1, and the right of passage is given to vehicles of the inflow path RI3. No pattern (present GJ2_2A), a pattern (current GJ2_2B) in which right-of-way vehicles are given to both the inflow path RI1 and the inflow path RI3 in the straight direction and left turn direction (current GJ2_2B), and no right to pass is given to vehicles in the inflow path RI1. There are three patterns (present GJ2_2C) in which right of traffic is given to vehicles in all directions (straight direction, left turn direction, right turn direction) of the inflow path RI3, and depending on the traffic conditions of the inflow path RI1 and the inflow path RI3, One of them is selected in signal control parameter calculation processing described later. In the right turn indication (present indication GJ2_3), the right to pass is given to vehicles in the right turn direction of both the inflow path RI1 and the inflow path RI3.

基本現示群ＢＧ２の閑散現示には、閑散現示２ａと閑散現示２ｂの２種類がある。閑散現示２ａは１パターンの基本現示、１パターンの右折現示から構成されており、付加現示はない。基本現示では、流入路ＲＩ１と流入路ＲＩ３の双方の直進方向と左折方向の車両と横断歩道ＣＲ２、横断歩道ＣＲ４の歩行者に対して通行権が与えられる。右折現示では、流入路ＲＩ１と流入路ＲＩ３の双方の右折方向の車両に対して通行権が与えられる。閑散現示２ｂは１パターンの基本現示のみで構成されており、付加現示、右折現示はない。基本現示では、流入路ＲＩ１と流入路ＲＩ３の双方の全方向（直進方向、左折方向、右折方向）の車両と横断歩道ＣＲ２、横断歩道ＣＲ４の歩行者に対して通行権が与えられる。後述する信号制御パラメータ算出処理にて閑散現示２ａ、閑散現示２ｂのいずれかが選択されるようになっている。   There are two types of quiet indications of the basic indication group BG2, a quiet indication 2a and a quiet indication 2b. The light display 2a is composed of one pattern of basic display and one pattern of right turn display, and no additional display. In the basic display, the right of passage is given to the vehicles in the straight direction and the left turn direction of both the inflow path RI1 and the inflow path RI3, and pedestrians in the pedestrian crossing CR2 and the pedestrian crossing CR4. In the right turn indication, the right to pass is given to vehicles in the right turn direction of both the inflow path RI1 and the inflow path RI3. The light display 2b is composed of only one basic display, and there is no additional display or right turn display. In the basic display, the right of passage is given to vehicles in all directions (straight direction, left turn direction, right turn direction) of both the inflow path RI1 and the inflow path RI3 and pedestrians in the pedestrian crossing CR2 and the pedestrian crossing CR4. Either the quiet indication 2a or the quiet indication 2b is selected in the signal control parameter calculation process described later.

図６は、信号制御パラメータ算出処理の手順を示すフローチャートである。演算部１０１は、所定の周期（例えば、１サイクル）毎に、以下の信号制御パラメータ算出処理を行う。   FIG. 6 is a flowchart showing a procedure of signal control parameter calculation processing. The calculation unit 101 performs the following signal control parameter calculation process for each predetermined period (for example, one cycle).

まず、演算部１０１は、過去の１サイクルにおけるそれぞれの流入路ＲＩｉ（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）の車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）を求める（ステップＳ０１）。ＴＶ１１は流入路ＲＩ１の車線１の車線別車種換算交通量、ＴＶ１２は流入路ＲＩ１の車線２の車線別車種換算交通量、ＴＶ２１は流入路ＲＩ２の車線１の車線別車種換算交通量、ＴＶ２２は流入路ＲＩ２の車線２の車線別車種換算交通量、ＴＶ３１は流入路ＲＩ３の車線１の車線別車種換算交通量、ＴＶ３２は流入路ＲＩ３の車線２の車線別車種換算交通量、ＴＶ４１は流入路ＲＩ４の車線１の車線別車種換算交通量、ＴＶ４２は流入路ＲＩ４の車線２の車線別車種換算交通量である。   First, the calculation unit 101 determines the lane-specific vehicle type converted traffic volume TVij (i = 1) of each lane j (j = 1-2) at the downstream end of each inflow path RIi (i = 1-4) in the past one cycle. ~ 4, j = 1 to 2) is obtained (step S01). TV11 is the lane-1 traffic volume of the lane 1 of the inflow route RI1, TV12 is the lane2 traffic volume of the lane 2 of the inflow route RI1, TV21 is the lane-1 traffic volume of the lane 1 of the inflow route RI2, and TV22 is Lane 31 of the inflow route RI2 in terms of lanes by vehicle type, TV 31 is the amount of traffic in terms of lanes in the lane 1 of inflow route RI3, TV 32 is the amount of traffic in terms of lanes in the lane 2 of inflow route RI3, and TV 41 is the amount of traffic in terms of lanes. The lane-specific traffic volume of the lane 1 of the RI4 and the TV 42 are the lane-specific traffic volume of the lane 2 of the inflow route RI4.

具体的には、それぞれの流入路ＲＩｉ（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）に設置された車両感知器４の読取装置４ａで取得した車両情報に含まれる車両の種類に基づいて、それぞれの流入路ＲＩｉ（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）から交差点ＩＳに流入する各車両が普通車、大型貨物車、乗用バス、二輪車のいずれに該当するかを把握し、それぞれの台数（交通量）から下記の式（１）により車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）を求める。   Specifically, it is included in the vehicle information acquired by the reading device 4a of the vehicle detector 4 installed in each lane j (j = 1 to 2) at the downstream end of each inflow path RIi (i = 1 to 4). Each vehicle flowing into the intersection IS from each lane j (j = 1 to 2) at the downstream end of each inflow path RIi (i = 1 to 4), Understand whether it corresponds to a passenger bus or a two-wheeled vehicle. From each number (traffic volume), calculate the traffic volume TVij (i = 1 to 4, j = 1 to 2) by lane according to the following formula (1). Ask.

車線別車種換算交通量ＴＶｉｊ
＝流入路ＲＩｉの車線ｊの普通車の交通量×普通車の換算係数ＣＯ１
＋流入路ＲＩｉの車線ｊの大型貨物車の交通量×大型貨物車の換算係数ＣＯ２
＋流入路ＲＩｉの車線ｊの乗用バスの交通量×乗用バスの換算係数ＣＯ３
＋流入路ＲＩｉの車線ｊの二輪車の交通量×二輪車の換算係数ＣＯ４
・・・式（１） Vehicle type equivalent traffic volume TVij by lane
= Traffic volume of ordinary vehicles in lane j of inflow route RIi x Conversion factor for ordinary vehicles CO1
+ Traffic volume of large freight vehicle in lane j of inflow channel RIi x Conversion factor CO2 of large freight vehicle
+ Traffic bus traffic on lane j of inflow route RIi x passenger bus conversion factor CO3
+ Traffic volume of motorcycles in lane j of inflow channel RIi x Conversion factor CO4 of motorcycles
... Formula (1)

例えば、それぞれの流入路ＲＩ１（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）における普通車、大型貨物車、乗用バス、二輪車の交通量が図７に示すような内容であったとする。また、普通車の換算係数ＣＯ１＝１．０、大型貨物車の換算係数ＣＯ２＝１．２、乗用バスの換算係数ＣＯ３＝１０．０、二輪車の換算係数ＣＯ４＝０．５であるとする。
この場合、流入路ＲＩ１の車線１における車線別車種換算交通量ＴＶ１１は式（１）により、１０［台］×１．０＋０［台］×１．２＋０［台］×１０．０＋０［台］×０．５＝１０［台］と求めることができる。
また、流入路ＲＩ２の車線１における車線別車種換算交通量ＴＶ２１は式（１）により、７［台］×１．０＋３［台］×１．２＋０［台］×１０．０＋０［台］×０．５＝１０．６［台］と求めることができる。
同様に、他の車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）を式（１）により求めると、図８に示すような結果となる。 For example, the traffic volumes of ordinary vehicles, large freight cars, passenger buses, and motorcycles in each lane j (j = 1 to 2) at the downstream end of each inflow path RI1 (i = 1 to 4) are as shown in FIG. Suppose it was content. Also, it is assumed that the conversion factor CO1 for ordinary vehicles is 1.0, the conversion factor CO2 for large freight vehicles is 1.2, the conversion factor CO3 for passenger buses is 10.0, and the conversion factor CO4 for motorcycles is 0.5.
In this case, the lane-specific vehicle type converted traffic volume TV11 in the lane 1 of the inflow channel RI1 is 10 [units] × 1.0 + 0 [units] × 1.2 + 0 [units] × 10.0 + 0 [units] × It can be calculated as 0.5 = 10 [units].
Further, the lane-specific vehicle type converted traffic volume TV21 in the lane 1 of the inflow channel RI2 is 7 [units] × 1.0 + 3 [units] × 1.2 + 0 [units] × 10.0 + 0 [units] × 0 according to the equation (1). .5 = 10.6 [units].
Similarly, when other lane-specific vehicle type converted traffic volume TVij (i = 1 to 4, j = 1 to 2) is obtained by the equation (1), the result is as shown in FIG.

次に、演算部１０１は、ステップＳ０１で求めた車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）と、各流入路ＲＩｉ（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）の車線別飽和交通流率ＰＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）と、飽和度係数ＣＯ５とを用いて、下記の式（２）により、各流入路ＲＩｉ（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）の飽和度ＰＩｉｊ（ｉ＝１〜４、ｊ＝１〜２）を求める（ステップＳ０２）。   Next, the calculation unit 101 determines the lane-specific vehicle type converted traffic volume TVij (i = 1 to 4, j = 1 to 2) obtained in step S01 and the downstream end of each inflow path RIi (i = 1 to 4). By using the saturation traffic flow rate PVij (i = 1 to 4, j = 1 to 2) for each lane j (j = 1 to 2) and the saturation coefficient CO5, the following equation (2): The saturation PIij (i = 1 to 4, j = 1 to 2) of each lane j (j = 1 to 2) at the downstream end of each inflow path RIi (i = 1 to 4) is obtained (step S02).

車線別飽和度ＰＩｉｊ
＝車線別車種換算交通量ＴＶｉｊ／車線別飽和交通流率ＰＶｉｊ
×飽和度係数ＣＯ５
・・・式（２） Saturation by lane PIij
= Vehicle equivalent traffic volume TVij by lane / saturated traffic flow rate PVij by lane
× Saturation coefficient CO5
... Formula (2)

なお、飽和度係数ＣＯ５は、各流入路ＲＩｉ（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）ごとに異なる値を設定しても良い。   The saturation coefficient CO5 may be set to a different value for each lane j (j = 1 to 2) at the downstream end of each inflow path RIi (i = 1 to 4).

例えば、車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）が図８に示す内容であり、車線別飽和交通流率ＰＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）がいずれも１８００［台／青１時間］であり、飽和度係数ＣＯ５＝１．０であるとする。
この場合、流入路ＲＩ１の車線１における車線別飽和度ＰＩ１１は式（２）により、１０［台］／１８００［台／青１時間］×１．０＝０．００５５６と求めることができる。
また、流入路ＲＩ２の車線１における車線別飽和度ＰＩ２１は式（２）により、１０．６［台］／１８００［台／青１時間］×１．０＝０．００５８９と求めることができる。
同様に、他の車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）を式（２）により求めると、図９に示すような結果となる。 For example, lane-specific vehicle type converted traffic volume TVij (i = 1 to 4, j = 1 to 2) is the content shown in FIG. 8, and lane-specific saturated traffic flow rate PVij (i = 1 to 4, j = 1 to 2). ) Is 1800 [unit / blue 1 hour], and the saturation coefficient CO5 = 1.0.
In this case, the saturation degree PI11 for each lane in the lane 1 of the inflow channel RI1 can be calculated as 10 [units] / 1800 [units / blue one hour] × 1.0 = 0.00556 by the equation (2).
Further, the lane saturation PI21 in the lane 1 of the inflow channel RI2 can be obtained as 10.6 [units] / 1800 [units / blue one hour] × 1.0 = 0.00589 by the equation (2).
Similarly, when other lane-specific vehicle type-converted traffic volume TVij (i = 1 to 4, j = 1 to 2) is obtained by equation (2), the result shown in FIG. 9 is obtained.

次に、演算部１０１は、各流入路ＲＩｉ（ｉ＝１〜４）について、同じ基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）に対応する車線ｊ（ｊ＝１〜２）の車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）を比較し、最大のものをその流入路ＲＩｉ（ｉ＝１〜４）の基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）における基本車線交通量ＢＴＶｉｋ（ｉ＝１〜４、ｋ＝１〜２）とし、その最大の車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）に対応する車線別飽和度ＰＩｉｊ（ｉ＝１〜４、ｊ＝１〜２）をその流入路ＲＩｉ（ｉ＝１〜４）の基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）における基本車線飽和度ＢＰＩｉｋ（ｉ＝１〜４、ｋ＝１〜２）とする（ステップＳ０３）。   Next, the calculation unit 101 lanes j (j = 1 to 2) corresponding to the same basic lane group BDik (i = 1 to 4, k = 1 to 2) for each inflow path RIi (i = 1 to 4). ) By vehicle type equivalent traffic volume TVij (i = 1 to 4, j = 1 to 2), and the largest one is the basic lane group BDik (i = 1) of the inflow path RIi (i = 1 to 4). -4, k = 1 to 2), the basic lane traffic volume BTVik (i = 1 to 4, k = 1 to 2), and the largest lane-specific vehicle type converted traffic volume TVij (i = 1 to 4, j = 1) To 2), the lane saturation level PIij (i = 1 to 4, j = 1 to 2) corresponding to the lane saturation level PIij (i = 1 to 4, k = The basic lane saturation BPIik (i = 1 to 4, k = 1 to 2) in 1-2) is set (step S03).

流入路ＲＩ１については、基本車線群ＢＤ１１に対応する車線は車線１のみなので、基本車線群ＢＤ１１における基本車線交通量ＢＴＶ１１は車線別車種換算交通量ＴＶ１１の１０［台］となる。また、基本車線群ＢＤ１２に対応する車線は車線２のみなので、基本車線群ＢＤ１２における基本車線交通量ＢＴＶ１２は車線別車種変換交通量ＴＶ１２の１［台］となる。
流入路ＲＩ２については、基本車線群ＢＤ２１に対応する車線は車線１のみなので、基本車線群ＢＤ２１における基本車線交通量ＢＴＶ２１は車線別車種換算交通量ＴＶ２１の１０．６［台］となる。また、基本車線群ＢＤ２２に対応する車線は車線２のみなので、基本車線群ＢＤ２２における基本車線交通量ＢＴＶ２２は車線別車種変換交通量ＴＶ２２の２［台］となる。
流入路ＲＩ３については、基本車線群ＢＤ３１に対応する車線は車線１のみなので、基本車線群ＢＤ３１における基本車線交通量ＢＴＶ３１は車線別車種換算交通量ＴＶ３１の１５［台］となる。また、基本車線群ＢＤ３２に対応する車線は車線２のみなので、基本車線群ＢＤ３２における基本車線交通量ＢＴＶ３２は車線別車種変換交通量ＴＶ３２の４［台］となる。
流入路ＲＩ４については、基本車線群ＢＤ４１に対応する車線は車線１のみなので、基本車線群ＢＤ４１における基本車線交通量ＢＴＶ４１は車線別車種換算交通量ＴＶ４１の１０［台］となる。また、基本車線群ＢＤ４２に対応する車線は車線２のみなので、基本車線群ＢＤ４２における基本車線交通量ＢＴＶ４２は車線別車種変換交通量ＴＶ４２の２［台］となる。
これらをまとめると図１０のようになる。 For the inflow route RI1, since the lane corresponding to the basic lane group BD11 is only the lane 1, the basic lane traffic volume BTV11 in the basic lane group BD11 is 10 [units] of the lane-specific vehicle type converted traffic volume TV11. Further, since the lane corresponding to the basic lane group BD12 is only lane 2, the basic lane traffic volume BTV12 in the basic lane group BD12 is 1 [unit] of the lane-specific vehicle type conversion traffic volume TV12.
For the inflow route RI2, since the lane corresponding to the basic lane group BD21 is only lane 1, the basic lane traffic volume BTV21 in the basic lane group BD21 is 10.6 [units] of the lane-specific vehicle type converted traffic volume TV21. Since the lane corresponding to the basic lane group BD22 is only the lane 2, the basic lane traffic volume BTV22 in the basic lane group BD22 is 2 [units] of the lane-specific vehicle type conversion traffic volume TV22.
For the inflow route RI3, since the lane corresponding to the basic lane group BD31 is only the lane 1, the basic lane traffic volume BTV31 in the basic lane group BD31 is 15 [units] of the lane-specific vehicle type converted traffic volume TV31. Since the lane corresponding to the basic lane group BD32 is only the lane 2, the basic lane traffic volume BTV32 in the basic lane group BD32 is 4 [units] of the lane-specific vehicle type conversion traffic volume TV32.
For the inflow route RI4, since the lane corresponding to the basic lane group BD41 is only the lane 1, the basic lane traffic volume BTV41 in the basic lane group BD41 is 10 [units] of the lane-specific vehicle type converted traffic volume TV41. Further, since the lane corresponding to the basic lane group BD42 is only lane 2, the basic lane traffic volume BTV42 in the basic lane group BD42 is 2 [units] of the lane-specific vehicle type conversion traffic volume TV42.
These are summarized as shown in FIG.

また、流入路ＲＩ１については、基本車線群ＢＤ１１における基本車線飽和度ＢＰＩ１１は、車線別車種換算交通量ＴＶ１１に対応する車線別飽和度ＰＩ１１の０．００５５６となる。また、基本車線群ＢＤ１２における基本車線飽和度ＢＰＩ１２は、車線別車種変換交通量ＴＶ１２に対応する車線別飽和度ＰＩ１２の０．０００５６となる。
流入路ＲＩ２については、基本車線群ＢＤ２１における基本車線飽和度ＢＰＩ２１は、車線別車種換算交通量ＴＶ２１に対応する車線別飽和度ＰＩ２１の０．００５８９となる。また、基本車線群ＢＤ２２における基本車線飽和度ＢＰＩ２２は、車線別車種変換交通量ＴＶ２２に対応する車線別飽和度ＰＩ２２の０．００１１１となる。
流入路ＲＩ３については、基本車線群ＢＤ３１における基本車線飽和度ＢＰＩ３１は、車線別車種換算交通量ＴＶ３１に対応する車線別飽和度ＰＩ１１の０．００８３３となる。また、基本車線群ＢＤ３２における基本車線飽和度ＢＰＩ３２は、車線別車種変換交通量ＴＶ３２に対応する車線別飽和度ＰＩ３２の０．００２２２となる。
流入路ＲＩ４については、基本車線群ＢＤ４１における基本車線飽和度ＢＰＩ４１は、車線別車種換算交通量ＴＶ４１に対応する車線別飽和度ＰＩ４１の０．００５５６となる。また、基本車線群ＢＤ４２における基本車線飽和度ＢＰＩ４２は、車線別車種変換交通量ＴＶ４２に対応する車線別飽和度ＰＩ４２の０．００１１１となる。
これらをまとめると図１１のようになる。 In addition, for the inflow route RI1, the basic lane saturation BPI11 in the basic lane group BD11 is 0.00556 of the lane saturation PI11 corresponding to the lane-specific vehicle type converted traffic volume TV11. Further, the basic lane saturation BPI12 in the basic lane group BD12 is 0.00056 of the lane saturation PI12 corresponding to the lane-specific vehicle type conversion traffic volume TV12.
For the inflow route RI2, the basic lane saturation BPI21 in the basic lane group BD21 is 0.00589 of the lane saturation PI21 corresponding to the lane-specific vehicle type converted traffic volume TV21. Further, the basic lane saturation BPI22 in the basic lane group BD22 is 0.00111 of the lane saturation PI22 corresponding to the lane-specific vehicle type conversion traffic volume TV22.
For the inflow route RI3, the basic lane saturation BPI31 in the basic lane group BD31 is 0.00833 of the lane saturation PI11 corresponding to the lane-specific vehicle type converted traffic volume TV31. The basic lane saturation BPI32 in the basic lane group BD32 is 0.00222 of the lane saturation PI32 corresponding to the lane-specific vehicle type conversion traffic TV32.
For the inflow route RI4, the basic lane saturation BPI41 in the basic lane group BD41 is 0.00556 of the lane saturation PI41 corresponding to the lane-specific vehicle type converted traffic volume TV41. Further, the basic lane saturation BPI42 in the basic lane group BD42 is 0.00111 of the lane saturation PI42 corresponding to the lane-specific vehicle type conversion traffic TV42.
These are summarized as shown in FIG.

仮に図１２の各流入路の下流端の各車線と各流入路の基本車線群の例のように、１つの基本車線群に２つの車線が対応付けられているとすると、例えば、流入路ＲＩ１については、基本車線群ＢＤ１１に対応する車線は車線１と車線２の２つがあるので、基本車線群ＢＤ１１における基本車線交通量ＢＴＶ１１は、流入路ＲＩ１の車線１の車線別車種換算交通量と流入路ＲＩ１の車線２の車線別車種換算交通量の多い方の値となる。そして、基本車線群ＢＤ１１における基本車線飽和度ＢＰＩ１１は、この多い方の車線別車種換算交通量に対応する車線別飽和度の値となる。   Assuming that two lanes are associated with one basic lane group as in the example of each lane at the downstream end of each inflow channel and the basic lane group of each inflow channel in FIG. 12, for example, the inflow channel RI1 Since there are two lanes corresponding to the basic lane group BD11, that is, lane 1 and lane 2, the basic lane traffic volume BTV11 in the basic lane group BD11 is the lane-specific traffic volume and inflow of the lane 1 of the inflow route RI1. It becomes the value of the one with the larger vehicle type conversion traffic volume by lane of the lane 2 of the road RI1. The basic lane saturation BPI11 in the basic lane group BD11 is a value of the lane saturation corresponding to the larger lane-specific vehicle type converted traffic volume.

次に、演算部１０１は、それぞれの基本現示群ＢＧｍ（ｍ＝１〜２）に含まれる各基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）おける基本車線交通量ＢＴＶｉｋ（ｉ＝１〜４、ｋ＝１〜２）に基づいて、それぞれの基本現示群ＢＧｍ（ｍ＝１〜２）における交通状態が通常状態か閑散状態かを判定する（ステップＳ０４）。   Next, the calculation unit 101 performs basic lane traffic BTVik (in each basic lane group BDik (i = 1 to 4, k = 1 to 2) included in each basic indication group BGm (m = 1 to 2). Based on i = 1 to 4, k = 1 to 2), it is determined whether the traffic state in each basic indication group BGm (m = 1 to 2) is a normal state or a quiet state (step S04).

具体的には、基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）が直進方向又は左折方向の場合には、この基本車線群における基本車線交通量ＢＴＶｉｋ（ｉ＝１〜４、ｋ＝１〜２）と、この基本車線交通量に対応する車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）と同じ流入路ＲＩｉ（ｉ＝１〜４）で同じ車線ｊ（ｊ＝１〜２）における車線別飽和交通流率ＰＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）と、基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）に対応する流入路ＲＩｉ（ｉ＝１〜４）における歩行者最小保証青時間ＰＬｉ（ｉ＝１〜４）と、同流入路における歩行者点滅時間ＰＦｉ（ｉ＝１〜４）と、同流入路における歩行者赤時間ＶＧｉ（ｉ＝１〜４）と、係数ＣＯ６とを用いて、下記の不等式（３）を満たすか否かを判定し、満たす場合には基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）は通常状態、満たさない場合には閑散状態と決定する。歩行者最小保証青時間は歩行者が横断歩道を渡るのに最低限必要な青信号の時間であり、歩行者点滅時間は歩行者に対する青点滅信号の時間であり、歩行者赤時間は歩行者と車両のうちの歩行者のみに対する赤信号の時間である。   Specifically, when the basic lane group BDik (i = 1 to 4, k = 1 to 2) is a straight ahead direction or a left turn direction, the basic lane traffic BTVik (i = 1 to 4, k = 1 to 2) and the same inflow path RIi (i = 1 to 4) as the lane-specific vehicle type converted traffic volume TVij (i = 1 to 4, j = 1 to 2) corresponding to this basic lane traffic volume Saturated traffic flow rate PVij (i = 1 to 4, j = 1 to 2) for each lane in lane j (j = 1 to 2) and basic lane group BDik (i = 1 to 4, k = 1 to 2) Pedestrian minimum guaranteed blue time PLi (i = 1-4) in the corresponding inflow path RIi (i = 1-4), pedestrian blinking time PFi (i = 1-4) in the same inflow path, and the same inflow path Is used to determine whether or not the following inequality (3) is satisfied using the pedestrian red time VGi (i = 1 to 4) and the coefficient CO6. And, the basic lane group BDik (i = 1~4, k = 1~2) a normal state, determining a quiet state when not satisfied if it meets. Pedestrian minimum guaranteed green time is the time of the green light necessary for the pedestrian to cross the pedestrian crossing, pedestrian flashing time is the time of the blue flashing signal for the pedestrian, and the pedestrian red time is the pedestrian red time. This is the red signal time for only pedestrians in the vehicle.

（基本車線交通量ＢＴＶｉｋ［台］／車線別飽和交通流率ＰＶｉｊ［台／青１時間］
×３６００［秒／１時間］＋係数ＣＯ６）
＞ （歩行者最小保証青時間ＰＬｉ［秒］＋歩行者点滅時間ＰＦｉ［秒］
＋歩行者赤時間ＶＧｉ［秒］）
・・・式（３） (Basic lane traffic volume BTVik [unit] / saturated traffic flow rate PVij by vehicle lane [unit / blue 1 hour]
× 3600 [sec / 1 hour] + coefficient CO6)
> (Pedestrian minimum guaranteed blue time PLi [seconds] + pedestrian blinking time PFi [seconds]
+ Pedestrian red time VGi [sec])
... Formula (3)

上記式（３）の右辺は車両に対する青時間を表している。   The right side of the above formula (3) represents the blue time for the vehicle.

また、基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）が右折方向の場合には、この基本車線群における基本車線交通量ＢＴＶｉｋ（ｉ＝１〜４、ｋ＝１〜２）と、この基本車線交通量に対応する車線別車種換算交通量ＴＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）と同じ流入路ＲＩｉ（ｉ＝１〜４）で同じ車線ｊ（ｊ＝１〜２）における車線別飽和交通流率ＰＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）と、基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）に対応する流入路ＲＩｉ（ｉ＝１〜４）における黄時間Ｙｉ（ｉ＝１〜４）と、同流入路における赤時間Ｒｉ（ｉ＝１〜４）と、係数ＣＯ７とを用いて、下記の不等式（４）を満たすか否かを判定し、満たす場合には基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）は通常状態、満たさない場合には閑散状態と決定する。   Further, when the basic lane group BDik (i = 1 to 4, k = 1 to 2) is in the right turn direction, the basic lane traffic volume BTVik (i = 1 to 4, k = 1 to 2) in the basic lane group. The same lane j (j = 1) on the same inflow route RIi (i = 1-4) as the lane-specific vehicle-type converted traffic volume TVij (i = 1-4, j = 1-2) corresponding to this basic lane traffic volume To 2) and the inflow path RIi (i = 1 to 4, k = 1 to 2) corresponding to the lane saturation traffic flow rate PVij (i = 1 to 4, j = 1 to 2) and the basic lane group BDik (i = 1 to 4, k = 1 to 2). The following inequality (4) is satisfied using the yellow time Yi (i = 1 to 4) in i = 1 to 4), the red time Ri (i = 1 to 4) in the inflow channel, and the coefficient CO7. The basic lane group BDik (i = 1 to 4, k = 1 to 2) is in a normal state when it is satisfied, and is quiet when it is not satisfied State and to determine.

（基本車線交通量ＢＴＶｉｋ［台］／車線別飽和交通流率ＰＶｉｊ［台／青１時間］
×３６００［秒／１時間］＋係数ＣＯ７）
＞ （黄時間Ｙｉ［秒］＋赤時間Ｒｉ［秒］）
・・・式（４） (Basic lane traffic volume BTVik [unit] / saturated traffic flow rate PVij by vehicle lane [unit / blue 1 hour]
X 3600 [second / 1 hour] + coefficient CO7)
> (Yellow time Yi [seconds] + Red time Ri [seconds])
... Formula (4)

そして、基本現示群ＢＧｍ（ｍ＝１〜２）に含まれるすべての基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）が閑散状態である場合には、基本現示群ＢＧｍ（ｍ＝１〜２）は閑散状態であると判定し、それ以外の場合には、通常状態であると判定する。   When all the basic lane groups BDik (i = 1 to 4, k = 1 to 2) included in the basic indication group BGm (m = 1 to 2) are in a quiet state, the basic indication group BGm (M = 1 to 2) is determined to be a quiet state, and otherwise, it is determined to be a normal state.

これを、図４の例を用いて具体的に説明する。基本現示群ＢＧ１に含まれる基本車線群ＢＤ２１は直進方向と左折方向であるから、基本車線群ＢＤ２１における基本車線交通量ＢＴＶ２１と、基本車線交通量ＢＴＶ２１に対応する車線別車種換算交通量ＴＶ２１と同じ流入路ＲＩ２で同じ車線１における車線別飽和交通流率ＰＶ２１と、基本車線群ＢＤ２１に対応する流入路ＲＩ２における歩行者最小保証青時間ＰＬ２と、同流入路における歩行者点滅時間ＰＦ２と、同流入路における歩行者赤時間ＶＧ２と、係数とＣＯ６を用いて、上記の不等式（３）を具体化した下記の不等式（３ａ）を満たすか否かを判定する。   This will be specifically described with reference to the example of FIG. Since the basic lane group BD21 included in the basic indication group BG1 is the straight-ahead direction and the left-turn direction, the basic lane traffic volume BTV21 in the basic lane group BD21 and the lane-specific vehicle type conversion traffic volume TV21 corresponding to the basic lane traffic volume BTV21 Saturated traffic flow rate PV21 by lane in the same lane 1 in the same inflow path RI2, pedestrian minimum guarantee blue time PL2 in the inflow path RI2 corresponding to the basic lane group BD21, pedestrian blinking time PF2 in the same inflow path, Using the pedestrian red time VG2 in the inflow route, the coefficient, and CO6, it is determined whether or not the following inequality (3a) that embodies the above inequality (3) is satisfied.

（基本車線交通量ＢＴＶ２１［台］／車線別飽和交通流率ＰＶ２１［台／青１時間］
×３６００［秒／１時間］＋係数ＣＯ６）
＞ （歩行者最小保証青時間ＰＬ２［秒］＋歩行者点滅時間ＰＦ２［秒］
＋歩行者赤時間ＶＧ２［秒］）
・・・式（３ａ） (Basic lane traffic volume BTV21 [unit] / saturated traffic flow rate PV21 [unit / blue 1 hour] by lane]
× 3600 [sec / 1 hour] + coefficient CO6)
> (Pedestrian minimum guaranteed blue time PL2 [seconds] + pedestrian blinking time PF2 [seconds]
+ Pedestrian red time VG2 [sec])
... Formula (3a)

ここで、係数ＣＯ６＝０．０、全ての流入路ＲＩｉ（ｉ＝１〜４）において、歩行者最小保証青時間ＰＬｉ（ｉ＝１〜４）＝１０［秒］、歩行者点滅時間ＰＦｉ（ｉ＝１〜４）＝５［秒］、歩行者赤時間ＶＧｉ（ｉ＝１〜４）＝２［秒］とする。
基本車線交通量ＢＴＶ２１＝１０．６［台］、車線別飽和交通流率ＰＶ２１＝１８００［台／青１時間］であるため、上記の不等式（３ａ）の左辺は、（１０．６［台］／１８００［台／青１時間］×３６００［秒／１時間］＋０．０）＝２１．２［秒］となり、上記の不等式（３ａ）の右辺は、（１０［秒］＋５［秒］＋２［秒］）＝１７秒となり、上記の不等式（３ａ）を満たす。従って、基本車線群ＢＤ２１は通常状態と決定する。 Here, the coefficient CO6 = 0.0, the pedestrian minimum guaranteed blue time PLi (i = 1 to 4) = 10 [seconds], the pedestrian blinking time PFi (i) in all the inflow paths RIi (i = 1 to 4). i = 1 to 4) = 5 [seconds], and pedestrian red time VGi (i = 1 to 4) = 2 [seconds].
Since the basic lane traffic volume BTV21 = 10.6 [unit] and the saturation traffic flow rate PV21 = 1800 [unit / blue 1 hour], the left side of the inequality (3a) is (10.6 [unit]). / 1800 [unit / blue 1 hour] × 3600 [seconds / 1 hour] +0.0) = 21.2 [seconds], and the right side of the inequality (3a) is (10 [seconds] +5 [seconds] +2 [Second]) = 17 seconds, which satisfies the above inequality (3a). Accordingly, the basic lane group BD21 is determined to be in the normal state.

また、基本現示群ＢＧ１に含まれる基本車線群ＢＤ２２は右折方向であるから、基本車線群ＢＤ２２における基本車線交通量ＢＴＶ２２と、基本車線交通量ＢＴＶ２２に対応する車線別車種換算交通量ＴＶ２２と同じ流入路ＲＩ２で同じ車線２における車線別飽和交通流率ＰＶ２２と、基本車線群ＢＤ２２に対応する流入路ＲＩ２における黄時間Ｙ２と、同流入路における赤時間Ｒ２と、係数ＣＯ７とを用いて、上記の不等式（４）を具体化した下記の不等式（４ａ）を満たすか否かを判定する。   Further, since the basic lane group BD22 included in the basic indication group BG1 is in the right turn direction, the basic lane traffic volume BTV22 in the basic lane group BD22 and the same lane-specific vehicle type converted traffic volume TV22 corresponding to the basic lane traffic volume BTV22 are the same. Using the saturation traffic flow rate PV22 by lane in the same lane 2 in the inflow path RI2, the yellow time Y2 in the inflow path RI2 corresponding to the basic lane group BD22, the red time R2 in the inflow path, and the coefficient CO7, It is determined whether or not the following inequality (4a) that embodies inequality (4) is satisfied.

（基本車線交通量ＢＴＶ２２［台］／車線別飽和交通流率ＰＶ２２［台／青１時間］
×３６００［秒／１時間］＋係数ＣＯ７）
＞ （黄時間Ｙ２［秒］＋赤時間Ｒ２［秒］）
・・・式（４ａ） (Basic lane traffic volume BTV22 [unit] / saturated traffic flow rate PV22 [unit / blue 1 hour] by lane]
X 3600 [second / 1 hour] + coefficient CO7)
> (Yellow time Y2 [seconds] + Red time R2 [seconds])
... Formula (4a)

ここで、係数ＣＯ７＝０．０、全ての流入路ＲＩｉ（ｉ＝１〜４）において、黄時間Ｙｉ（ｉ＝１〜４）＝３［秒］、赤時間Ｒｉ（ｉ＝１〜４）＝３［秒］とする。
基本車線交通量ＢＴＶ２２＝２［台］、車線別飽和交通流率ＰＶ２２＝１８００［台／青１時間］であるため、上記の不等式（４ａ）の左辺は、（２［台］／１８００［台／青１時間］×３６００［秒／１時間］＋０．０）＝４［秒］となり、上記の不等式（４ａ）の右辺は、（３［秒］＋３［秒］）＝６秒となり、上記の不等式（４ａ）を満たさない。従って、基本車線群ＢＤ２２は閑散状態と決定する。 Here, the coefficient CO7 = 0.0, the yellow time Yi (i = 1-4) = 3 [seconds], and the red time Ri (i = 1-4) in all the inflow paths RIi (i = 1-4). = 3 [seconds].
Since the basic lane traffic BTV22 = 2 [units] and the saturation traffic flow rate PV22 = 1800 [units / blue 1 hour], the left side of the inequality (4a) is (2 [units] / 1800 [units]. / Blue 1 hour] × 3600 [seconds / 1 hour] +0.0) = 4 [seconds], and the right side of the above inequality (4a) is (3 [seconds] +3 [seconds]) = 6 seconds, The inequality (4a) is not satisfied. Accordingly, the basic lane group BD22 is determined to be a quiet state.

同様にして、基本現示群ＢＧ１に含まれる基本車線群ＢＤ４１について、上記の不等式（３）の左辺を算出すると２０［秒］となり、不等式（３）の右辺を算出すると１７［秒］となるので、不等式（３）を満たし、基本車線群ＢＤ４１は通常状態と決定する。
また、基本現示群ＢＧ１に含まれる基本車線群ＢＤ４２について、上記不等式（４）の左辺を算出すると４［秒］となり、不等式（４）の右辺を算出すると６［秒］となるので、不等式（４）を満たさず、基本車線群ＢＤ４２は閑散状態と決定する。
よって、基本現示群ＢＧ１に含まれる４つの基本車線群ＢＤ２１、ＢＤ２２、ＢＤ４１、ＢＤ４２のうち２つが通常状態となっており、全てが閑散状態となっていないので、基本現示群ＢＧ１は通常状態と決定する。 Similarly, for the basic lane group BD41 included in the basic indication group BG1, the left side of the inequality (3) is 20 [seconds], and the right side of the inequality (3) is 17 [seconds]. Therefore, the inequality (3) is satisfied and the basic lane group BD41 is determined to be in the normal state.
For the basic lane group BD42 included in the basic indication group BG1, the left side of the inequality (4) is calculated to be 4 [seconds], and the right side of the inequality (4) is calculated to be 6 [seconds]. (4) is not satisfied, and the basic lane group BD42 is determined to be a quiet state.
Therefore, two of the four basic lane groups BD21, BD22, BD41, and BD42 included in the basic indication group BG1 are in a normal state, and all are not in a quiet state, so the basic indication group BG1 is normal. Determining the state.

基本現示群ＢＧ２についても同様に処理する。基本現示群ＢＧ２に含まれる基本車線群ＢＤ１１について、上記の不等式（３）の左辺を算出すると２０［秒］となり、不等式（３）の右辺を算出すると１７［秒］となるので、不等式（３）を満たし、基本車線群ＢＤ１１は通常状態と決定する。
また、基本現示群ＢＧ２に含まれる基本車線群ＢＤ１２について、上記の不等式（４）の左辺を算出すると２［秒］となり、不等式（４）の右辺を算出すると６［秒］となるので、不等式（４）を満たさず、基本車線群ＢＤ１２は閑散状態と決定する。
基本現示群ＢＧ２に含まれる基本車線群ＢＤ３１について、上記の不等式（３）の左辺を算出すると３０［秒］となり、不等式（３）の右辺を算出すると１７［秒］となるので、不等式（３）を満たし、基本車線群ＢＤ３１は通常状態と決定する。
また、基本現示群ＢＧ２に含まれる基本車線群ＢＤ３２について、上記の不等式（４）の左辺を算出すると８［秒］となり、不等式（４）の右辺を算出すると６［秒］となるので、不等式（４）を満たし、基本車線群ＢＤ３２は通常状態と決定する。
よって、基本現示群ＢＧ２に含まれる４つの基本車線群ＢＤ１１、ＢＤ１２、ＢＤ３１、ＢＤ３２のうち３つが通常状態となっており、全てが閑散状態となっていないので、基本現示群ＢＧ２は通常状態と決定する。
これらをまとめると図１３のようになる。 The basic display group BG2 is similarly processed. For the basic lane group BD11 included in the basic indication group BG2, the left side of the inequality (3) is calculated to be 20 [seconds], and the right side of the inequality (3) is calculated to be 17 [seconds]. 3) is satisfied, and the basic lane group BD11 is determined to be in the normal state.
Further, for the basic lane group BD12 included in the basic indication group BG2, when the left side of the inequality (4) is calculated, it becomes 2 [seconds], and when the right side of the inequality (4) is calculated, it becomes 6 [seconds]. The inequality (4) is not satisfied, and the basic lane group BD12 is determined to be a quiet state.
For the basic lane group BD31 included in the basic indication group BG2, the left side of the inequality (3) is calculated to be 30 [seconds], and the right side of the inequality (3) is calculated to be 17 [seconds]. 3) is satisfied, and the basic lane group BD31 is determined to be in the normal state.
Further, for the basic lane group BD32 included in the basic indication group BG2, when the left side of the inequality (4) is calculated, it is 8 [seconds], and when the right side of the inequality (4) is calculated, 6 [seconds]. The inequality (4) is satisfied, and the basic lane group BD32 is determined to be in the normal state.
Therefore, three of the four basic lane groups BD11, BD12, BD31, and BD32 included in the basic indication group BG2 are in the normal state, and all are not in a quiet state, so the basic indication group BG2 is normal. Determining the state.
These are summarized as shown in FIG.

次に、演算部１０１は、ステップＳ０４において通常状態と判定した基本現示群ＢＧｍ（ｍ＝１〜２）について、時差現示の必要性を判定する（ステップＳ０５）。具体的には、基本現示群ＢＧｍ（ｍ＝１〜２）に含まれるそれぞれの基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）のうち、直進方向と左折方向に該当するものを選定し、流入路ＲＩｉ（ｉ＝１〜４）ごとに選定した基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）における基本車線交通量ＢＴＶｉｋ（ｉ＝１〜４、ｋ＝１〜２）の合計を求め、その差分（差の絶対値）である阻害交通量ＢＴＶＯｍ（ｍ＝１〜２）を求める。そして、阻害交通量ＢＴＶＯｍ（ｍ＝１〜２）と、この阻害交通量ＢＴＶＯｍ（ｍ＝１〜２）が含まれる基本車線交通量ＢＴＶｉｋ（ｉ＝１〜４、ｋ＝１〜２）に対応する流入路ＲＩｉ（ｉ＝１〜４）の直進方向又は左折方向の車線ｊ（ｊ＝１〜２）の車線別飽和交通流率ＰＶｉｊ（ｉ＝１〜４、ｊ＝１〜２）と、この阻害交通量ＢＴＶＯｍ（ｍ＝１〜２）が含まれる基本車線交通量ＢＴＶｉｋ（ｉ＝１〜４、ｋ＝１〜２）に対応する流入路ＲＩｉ（ｉ＝１〜４）の黄時間Ｙｉ（ｉ＝１〜４）と、同流入路における赤時間Ｒｉ（ｉ＝１〜４）と、同流入路における時差現示の最小の青時間である時差最小保証青時間ＤＧｉ（ｉ＝１〜４）と、係数ＣＯ８とを用いて、下記の不等式（５）を満たすか否かを判定し、満たす場合には当該基本現示群ＢＧｍ（ｍ＝１〜２）について時差現示が必要であると決定し、満たさない場合には時差現示は不要であると決定する。   Next, the operation unit 101 determines the necessity of time difference display for the basic display group BGm (m = 1 to 2) determined to be in the normal state in step S04 (step S05). Specifically, in the basic lane group BDik (i = 1 to 4, k = 1 to 2) included in the basic indication group BGm (m = 1 to 2), it corresponds to the straight ahead direction and the left turn direction. The basic lane traffic BTVik (i = 1 to 4, k) in the basic lane group BDik (i = 1 to 4, k = 1 to 2) selected for each inflow route RIi (i = 1 to 4) = 1 to 2), and the obstructed traffic volume BTVOm (m = 1 to 2), which is the difference (absolute value of the difference), is obtained. And it corresponds to the basic lane traffic BTVik (i = 1 to 4, k = 1 to 2) including the inhibition traffic volume BTVOm (m = 1 to 2) and the inhibition traffic volume BTVOm (m = 1 to 2). Saturated traffic flow rate PVij (i = 1 to 4, j = 1 to 2) for each lane of the lane j (j = 1 to 2) in the straight direction or left turn direction of the inflow path RIi (i = 1 to 4) Yellow time Yi of the inflow route RIi (i = 1 to 4) corresponding to the basic lane traffic amount BTVik (i = 1 to 4, k = 1 to 2) including the inhibition traffic amount BTVOm (m = 1 to 2) (I = 1 to 4), red time Ri (i = 1 to 4) in the same inflow path, and time difference minimum guaranteed blue time DGi (i = 1 to 1) which is the minimum blue time of the time difference display in the same inflow path. 4) and the coefficient CO8 are used to determine whether or not the following inequality (5) is satisfied. For BGm (m = 1~2) determines that the time difference current-is needed, if not met time difference Gen示 is determined to be unnecessary.

（阻害交通量ＢＴＶＯｍ［台］／車線別飽和交通流率ＰＶｉｊ［台／青１時間］
×３６００［秒／１時間］＋係数ＣＯ８）
＞ （黄時間Ｙｉ［秒］＋赤時間Ｒｉ［秒］＋時差最小保証青時間［秒］）
・・・式（５） (Inhibited traffic BTVOm [unit] / saturated traffic flow rate PVij by lane [unit / blue 1 hour]
X 3600 [second / 1 hour] + coefficient CO8)
> (Yellow time Yi [second] + Red time Ri [second] + Time difference minimum guaranteed blue time [second])
... Formula (5)

ここで、上記の不等式（５）における左辺の「阻害交通量ＢＴＶＯｍ［台］／車線別飽和交通流率ＰＶｉｊ［台／青１時間］×３６００［秒／１時間］」は、阻害交通量ＢＴＶＯｍ［台］が通行するために要する時間であるので、阻害交通量通行時間と呼ぶ。   Here, “inhibited traffic volume BTVOm [unit] / saturated traffic flow rate by vehicle lane PVij [unit / blue 1 hour] × 3600 [seconds / 1 hour]” in the inequality (5) is the inhibited traffic volume BTVOm. Since it is the time required for [Taiwan] to pass, it is referred to as obstructed traffic passage time.

これを図４の例を用いて具体的に説明する。基本現示群ＢＧ１に含まれる基本車線群ＢＤ２１、ＢＤ２２、ＢＤ４１、ＢＤ４２のうち、直進方向と左折方向に該当するものは基本車線群ＢＤ２１、基本車線群ＢＤ４１である。基本車線群ＢＤ２１に対応する流入路は流入路ＲＩ２であり、基本車線群ＢＤ４１に対応する流入路は流入路ＲＩ４である。流入路ＲＩ２には選定した基本車線群は基本車線群ＢＤ２１のみが対応するので、選定した基本車線群における基本車線交通量の合計は基本車線群ＢＤ２１における基本車線交通量ＢＴＶ２１に該当する。流入路ＲＩ４には選定した基本車線群は基本車線群ＢＤ４１のみが対応するので、選定した基本車線群における基本車線交通量の合計は基本車線群ＢＤ４１における基本車線交通量ＢＤ４１に該当する。阻害交通量ＢＴＶＯ１は、基本車線交通量ＢＴＶ２１と基本車線交通量ＢＴＶ４１の差分（差の絶対値）となる。基本車線交通量ＢＴＶ２１は１０．６［台］であり、基本車線交通量ＢＴＶ４１は１０［台］であるので、阻害交通量ＢＴＶＯ１はＡＢＳ（１０．６［台］−１０［台］）＝０．６［台］となる。ここで、「ＡＢＳ（）」は、括弧内の値の絶対値を示す。阻害交通量ＢＴＶＯ１の０．６［台］は、基本車線交通量ＢＴＶ２１と基本車線交通量ＢＴＶ４１のうちの多い方である基本車線交通量ＢＴＶ２１に含まれるので、この基本車線交通量ＢＴＶ２１に対応する流入路ＲＩ２の黄時間Ｙ２、同流入路の赤時間Ｒ２、同流入路の時差最小保証青時間ＤＧ２、係数ＣＯ８を用いて、上記の不等式（５）を満たすか否かを判定する。   This will be specifically described with reference to the example of FIG. Of the basic lane groups BD21, BD22, BD41, and BD42 included in the basic display group BG1, those that correspond to the straight-ahead direction and the left-turn direction are the basic lane group BD21 and the basic lane group BD41. The inflow path corresponding to the basic lane group BD21 is the inflow path RI2, and the inflow path corresponding to the basic lane group BD41 is the inflow path RI4. Since only the basic lane group BD21 corresponds to the selected basic lane group for the inflow path RI2, the total basic lane traffic volume in the selected basic lane group corresponds to the basic lane traffic volume BTV21 in the basic lane group BD21. Since only the basic lane group BD41 corresponds to the selected basic lane group in the inflow path RI4, the total basic lane traffic volume in the selected basic lane group corresponds to the basic lane traffic volume BD41 in the basic lane group BD41. The inhibition traffic volume BTVO1 is the difference (absolute value of the difference) between the basic lane traffic volume BTV21 and the basic lane traffic volume BTV41. Since the basic lane traffic BTV21 is 10.6 [units] and the basic lane traffic BTV41 is 10 [units], the inhibition traffic BTVO1 is ABS (10.6 [units] -10 [units]) = 0. .6 [units]. Here, “ABS ()” indicates the absolute value of the value in parentheses. Since the inhibition traffic volume BTVO1 of 0.6 [unit] is included in the basic lane traffic volume BTV21 which is the larger of the basic lane traffic volume BTV21 and the basic lane traffic volume BTV41, it corresponds to this basic lane traffic volume BTV21. Using the yellow time Y2 of the inflow path RI2, the red time R2 of the inflow path, the minimum time difference guaranteed blue time DG2 of the inflow path, and the coefficient CO8, it is determined whether or not the above inequality (5) is satisfied.

ここで、係数ＣＯ８＝０．０、全ての流入路ＲＩｉ（ｉ＝１〜４）において、黄時間Ｙｉ（ｉ＝１〜４）＝３［秒］、赤時間Ｒｉ（ｉ＝１〜４）＝３［秒］、時差最小保証青時間ＤＧｉ（ｉ＝１〜４）＝１［秒］であるとする。
上記の不等式（５）の左辺は、（０．６［台］／１８００［台／青１時間］×３６００［秒／１時間］＋０．０）＝１．２［秒］となり、不等式（５）の右辺は（３［秒］＋３［秒］＋１［秒］）＝７［秒］となり、不等式（５）を満たさない。したがって、基本現示群ＢＧ１については、時差現示は不要であると決定する。 Here, the coefficient CO8 = 0.0, the yellow time Yi (i = 1-4) = 3 [seconds], the red time Ri (i = 1-4) in all the inflow channels RIi (i = 1-4). = 3 [seconds] and time difference minimum guaranteed blue time DGi (i = 1 to 4) = 1 [seconds].
The left side of the inequality (5) is (0.6 [unit] / 1800 [unit / blue 1 hour] × 3600 [second / 1 hour] +0.0) = 1.2 [second], and the inequality (5 ) Is (3 [seconds] +3 [seconds] +1 [seconds]) = 7 [seconds], and inequality (5) is not satisfied. Therefore, it is determined that the time difference display is unnecessary for the basic display group BG1.

基本現示群ＢＧ２に含まれる基本車線群ＢＤ１１、ＢＤ１２、ＢＤ３１、ＢＤ３２のうち、直進方向と左折方向に該当するものは基本車線群ＢＤ１１、基本車線群ＢＤ３１である。基本車線群ＢＤ１１に対応する流入路は流入路ＲＩ１であり、基本車線群ＢＤ３１に対応する流入路は流入路ＲＩ３である。流入路ＲＩ１には選定した基本車線群は基本車線群ＢＤ１１のみが対応するので、選定した基本車線群における基本車線交通量の合計は基本車線群ＢＤ１１における基本車線交通量ＢＴＶ１１に該当する。流入路ＲＩ３には選定した基本車線群は基本車線群ＢＤ３１のみが対応するので、選定した基本車線群における基本車線交通量の合計は基本車線群ＢＤ３１における基本車線交通量ＢＤ３１に該当する。阻害交通量ＢＴＶＯ２は、基本車線交通量ＢＴＶ１１と基本車線交通量ＢＴＶ３１の差分（差の絶対値）となる。基本車線交通量ＢＴＶ１１は１０［台］であり、基本車線交通量ＢＴＶ３１は１５［台］であるので、阻害交通量ＢＴＶＯ２はＡＢＳ（１０［台］−１５［台］）＝５［台］となる。阻害交通量ＢＴＶＯ１の５［台］は、基本車線交通量ＢＴＶ１１と基本車線交通量ＢＴＶ３１のうちの多い方である基本車線交通量ＢＴＶ３１に含まれるので、この基本車線交通量ＢＴＶ３１に対応する流入路ＲＩ３の黄時間Ｙ３と、同流入における赤時間Ｒ３と、同流入路における時差最小保証青時間ＤＧ３と、係数ＣＯ８とを用いて、上記の不等式（５）を満たすか否かを判定する。   Of the basic lane groups BD11, BD12, BD31, and BD32 included in the basic indication group BG2, those that correspond to the straight traveling direction and the left turn direction are the basic lane group BD11 and the basic lane group BD31. The inflow path corresponding to the basic lane group BD11 is the inflow path RI1, and the inflow path corresponding to the basic lane group BD31 is the inflow path RI3. Since only the basic lane group BD11 corresponds to the selected basic lane group for the inflow path RI1, the total basic lane traffic volume in the selected basic lane group corresponds to the basic lane traffic volume BTV11 in the basic lane group BD11. Since only the basic lane group BD31 corresponds to the selected basic lane group for the inflow path RI3, the total basic lane traffic volume in the selected basic lane group corresponds to the basic lane traffic volume BD31 in the basic lane group BD31. The inhibition traffic volume BTVO2 is a difference (absolute value of the difference) between the basic lane traffic volume BTV11 and the basic lane traffic volume BTV31. Since the basic lane traffic BTV11 is 10 [units] and the basic lane traffic BTV31 is 15 [units], the obstructed traffic BTVO2 is ABS (10 [units] -15 [units]) = 5 [units]. Become. Since the inhibition traffic volume BTVO1 of 5 [units] is included in the basic lane traffic volume BTV31 which is the larger one of the basic lane traffic volume BTV11 and the basic lane traffic volume BTV31, the inflow path corresponding to this basic lane traffic volume BTV31 Whether or not the above inequality (5) is satisfied is determined using the yellow time Y3 of RI3, the red time R3 in the inflow, the minimum time difference guaranteed blue time DG3 in the inflow channel, and the coefficient CO8.

上記の不等式（５）の左辺は、（５［台］／１８００［台／青１時間］×３６００［秒／１時間］＋０．０）＝１０［秒］となり、不等式（５）の右辺は（３［秒］＋３［秒］＋１［秒］）＝７［秒］となり、不等式（５）を満たす。したがって、基本現示群ＢＧ２については時差現示は必要であると決定する。   The left side of the above inequality (5) is (5 [unit] / 1800 [unit / blue 1 hour] × 3600 [second / 1 hour] +0.0) = 10 [second], and the right side of the inequality (5) is (3 [seconds] +3 [seconds] +1 [seconds]) = 7 [seconds], which satisfies the inequality (5). Therefore, it is determined that the time difference display is necessary for the basic display group BG2.

次に、演算部１０１は、それぞれの基本現示群ＢＧｍ（ｍ＝１〜２）における現示の内容を決定し、それぞれの現示の飽和度を算出する（ステップＳ０６）。
具体的には、ステップＳ０４において閑散状態であると判定した基本現示群ＢＧｍ（ｍ＝１〜２）については、閑散現示ｍａ又は閑散現示ｍｂ（ｍ＝１〜２）を選定する。予めいずれを選定するかを決めておき、記憶部１０２に記憶しておいても良いし、交通状況を考慮していずれかを選定するように設定しても良い。
この場合、閑散現示ｍａ（ｍ＝１〜２）を構成する基本現示と右折現示の飽和度、あるいは閑散現示ｍｂ（ｍ＝１〜２）の基本現示の飽和度は、従来の方法により求める。 Next, the calculation unit 101 determines the contents of the presenting in each basic presenting group BGm (m = 1 to 2), and calculates the saturation of each presenting (step S06).
Specifically, for the basic indication group BGm (m = 1 to 2) determined to be in the quiet state in step S04, the quiet indication ma or the quiet indication mb (m = 1 to 2) is selected. It may be determined in advance which is to be selected and stored in the storage unit 102, or may be set to be selected in consideration of traffic conditions.
In this case, the saturation of the basic indication and right turn indication constituting the quiet indication ma (m = 1 to 2), or the saturation of the basic indication of the quiet indication mb (m = 1 to 2) Obtained by the method of

また、ステップＳ０４において通常状態であると判定し、ステップＳ０５において時差現示が必要でないと判定した基本現示群ＢＧｍ（ｍ＝１〜２）については、基本現示ＧＪｍ＿１（ｍ＝１〜２）を提供した後、時差現示でない付加現示ＧＪｍ＿２Ｂ（ｍ＝１〜２）を提供し、最後に右折現示ＧＪｍ＿３（ｍ＝１〜２）を提供する内容に決定する。   In addition, for the basic indication group BGm (m = 1 to 2) that is determined to be in the normal state in step S04 and that the time difference indication is not required in step S05, the basic indication GJm_1 (m = 1 to 2). ) Is provided, an additional indication GJm_2B (m = 1 to 2) that is not a time difference indication is provided, and a right turn indication GJm — 3 (m = 1 to 2) is finally provided.

この場合、基本現示ＧＪｍ＿１（ｍ＝１〜２）と付加現示ＧＪｍ＿２Ｂ（ｍ＝１〜２）はいずれも直進方向と左折方向の車両に通行権を与えるものであり、基本現示ＧＪｍ＿１（ｍ＝１〜２）（又は付加現示ＧＪｍ＿２Ｂ（ｍ＝１〜２））に対応する基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）における基本車線飽和度ＢＰＩｉｋ（ｉ＝１〜４、ｋ＝１〜２）を用いて、基本現示ＧＪｍ＿１（ｍ＝１〜２）と付加現示ＧＪｍ＿２Ｂ（ｍ＝１〜２）に共通する基本現示飽和度ＢＰＩＧＪｍ＿１（ｍ＝１〜２）を以下の式（６）により算出する。   In this case, the basic indication GJm_1 (m = 1 to 2) and the additional indication GJm_2B (m = 1 to 2) both give the right of passage to the vehicle in the straight direction and the left turn direction, and the basic indication GJm_1 ( m = 1-2) (or additional indication GJm_2B (m = 1-2)) corresponding to the basic lane saturation BPik (i = 1) in the basic lane group BDik (i = 1-4, k = 1-2) -4, k = 1 to 2), the basic indication saturation BPIGJm_1 (m = 1 to 2) common to the basic indication GJm_1 (m = 1 to 2) and the additional indication GJm_2B (m = 1 to 2). 2) is calculated by the following equation (6).

基本現示飽和度ＢＰＩＧＪｍ＿１
＝ＭＡＸ（基本現示ＧＪｍ＿１に対応する基本車線群ＢＤｉｋにおける基本車線飽和度ＢＰＩｉｋ）
・・・式（６） Basic indication saturation BPIGJm_1
= MAX (basic lane saturation BPIik in basic lane group BDik corresponding to basic indication GJm_1)
... Formula (6)

ここで、「ＭＡＸ（）」は括弧内に含まれる値のうちの最大の値を示す。   Here, “MAX ()” indicates the maximum value among the values included in the parentheses.

右折現示ＧＪｍ＿３（ｍ＝１〜２）は右折方向の車両に通行権を与えるものであり、右折現示ＧＪｍ＿３（ｍ＝１〜２）に対応する基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）における基本車線飽和度ＢＰＩｉｋ（ｉ＝１〜４、ｋ＝１〜２）を用いて、基本現示飽和度ＢＰＩＧＪｍ＿３（ｍ＝１〜２）を以下の式（７）により算出する。   The right turn indication GJm_3 (m = 1 to 2) gives the right of traffic to the vehicle in the right turn direction, and the basic lane group BDik (i = 1 to 4, i) corresponding to the right turn indication GJm_3 (m = 1 to 2). Using the basic lane saturation BPIik (i = 1 to 4, k = 1 to 2) at k = 1 to 2), the basic indication saturation BPIGJm — 3 (m = 1 to 2) is expressed by the following equation (7). calculate.

基本現示飽和度ＢＰＩＧＪｍ＿３
＝ＭＡＸ（右折現示ＧＪｍ＿３に対応する基本車線群ＢＤｉｋにおける基本車線飽和度ＢＰＩｉｋ）
・・・式（７） Basic indication saturation BPIGJm_3
= MAX (basic lane saturation BPIik in basic lane group BDik corresponding to right turn indication GJm_3)
... Formula (7)

ステップＳ０４において通常状態であると判定し、ステップＳ０５において時差現示が必要であると判定した基本現示群ＢＧｍ（ｍ＝１〜２）については、基本現示ＧＪｍ＿１（ｍ＝１〜２）を提供した後、時差現示である付加現示ＧＪｍ＿２Ａ（ｍ＝１〜２）又は付加現示ＧＪｍ＿２Ｃ（ｍ＝１〜２）を提供し、最後に右折現示ＧＪｍ＿３（ｍ＝１〜２）を提供するように決定する。付加現示ＧＪｍ＿２Ａ（ｍ＝１〜２）又は付加現示ＧＪｍ＿２Ｃ（ｍ＝１〜２）のいずれを選定するかについては、ステップＳ０５において算出した阻害交通量ＢＴＶＯｍ（ｍ＝１〜２）が含まれる基本車線交通量ＢＴＶｉｋ（ｉ＝１〜４、ｋ＝１〜２）に対応する流入路ＲＩｉ（ｉ＝１〜４）の全方向の車両に通行権を与える付加現示に対応するものを選定する。   For the basic indication group BGm (m = 1 to 2) that is determined to be in the normal state in step S04 and that the time difference indication is necessary in step S05, the basic indication GJm_1 (m = 1 to 2). Is provided, additional indication GJm_2A (m = 1 to 2) or additional indication GJm_2C (m = 1 to 2), which is a time difference indication, and finally right turn indication GJm — 3 (m = 1 to 2) Decide to provide. Whether the additional indication GJm_2A (m = 1 to 2) or the additional indication GJm_2C (m = 1 to 2) is selected includes the obstructed traffic volume BTVOm (m = 1 to 2) calculated in step S05. Corresponding to the additional indication that gives the right of passage to vehicles in all directions of the inflow route RIi (i = 1 to 4) corresponding to the basic lane traffic volume BTVik (i = 1 to 4, k = 1 to 2) Select.

この場合、基本現示ＧＪｍ＿１（ｍ＝１〜２）においては、基本現示群ＢＧｍ（ｍ＝１〜２）に含まれる基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）のうち基本現示ＧＪｍ＿１（ｍ＝１〜２）に対応する基本車線群の共通する台数の車両に通行権を与える。これらの基本現示ＧＪｍ＿１（ｍ＝１〜２）に対応する基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）における基本車線飽和度ＢＰＩｉｋ（ｉ＝１〜４、ｋ＝１〜２）を用いて、基本現示ＧＪｍ＿１（ｍ＝１〜２）の基本現示飽和度ＢＰＩＧＪｍ＿１（ｍ＝１〜２）を以下の式（８）により算出する。   In this case, in the basic indication GJm_1 (m = 1 to 2), the basic lane group BDik (i = 1 to 4, k = 1 to 2) included in the basic indication group BGm (m = 1 to 2). Among them, the right of passage is given to the vehicles of the same number in the basic lane group corresponding to the basic indication GJm_1 (m = 1 to 2). Basic lane saturation BPIik (i = 1 to 4, k = 1 to 2) in the basic lane group BDik (i = 1 to 4, k = 1 to 2) corresponding to these basic indications GJm_1 (m = 1 to 2). 2), the basic indication saturation BPIGJm_1 (m = 1 to 2) of the basic indication GJm_1 (m = 1 to 2) is calculated by the following equation (8).

基本現示飽和度ＢＰＩＧＪｍ＿１
＝ＭＩＮ（基本現示群ＢＧｍに含まれる基本車線群ＢＤｉｋのうち基本現示ＧＪｍ＿１に対応する基本車線群ＢＤｉｋにおける基本車線飽和度ＢＰＩｉｋ）
・・・式（８） Basic indication saturation BPIGJm_1
= MIN (basic lane saturation BPIik in basic lane group BDik corresponding to basic indication GJm_1 among basic lane group BDik included in basic indication group BGm)
... Formula (8)

ここで、「ＭＩＮ（）」は括弧内に含まれる値のうちの最小の値を示す。   Here, “MIN ()” indicates the minimum value among the values included in the parentheses.

次に、時差現示である付加現示ＧＪｍ＿２Ａ（ｍ＝１〜２）又は付加現示ＧＪｍ＿２Ｃ（ｍ＝１〜２）は、基本現示群ＢＧｍ（ｍ＝１〜２）に含まれる基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）のうち基本現示ＧＪｍ＿１（ｍ＝１〜２）に対応する基本車線群の差分（すなわち、阻害交通量ＢＴＶＯｍ（ｍ＝１〜２））に該当する台数の車両に通行権を与えるものであるため、この基本現示ＧＪｍ＿１（ｍ＝１〜２）に対応する基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）における基本車線飽和度ＢＰＩｉｋ（ｉ＝１〜４、ｋ＝１〜２）と、基本現示飽和度ＢＰＩＧＪｍ＿１（ｍ＝１〜２）とを用いて、付加現示ＧＪｍ＿２Ａ（ｍ＝１〜２）又は付加現示ＧＪｍ＿２Ｃ（ｍ＝１〜２）の基本現示飽和度ＢＰＩＧＪｍ＿２（ｍ＝１〜２）を以下の式（９）により算出する。   Next, the additional indication GJm_2A (m = 1 to 2) or the additional indication GJm_2C (m = 1 to 2), which is a time difference indication, is a basic lane included in the basic indication group BGm (m = 1 to 2). The difference of the basic lane group corresponding to the basic indication GJm_1 (m = 1 to 2) in the group BDik (i = 1 to 4, k = 1 to 2) (that is, the inhibition traffic volume BTVOm (m = 1 to 2)) ) In the basic lane group BDik (i = 1 to 4, k = 1 to 2) corresponding to the basic indication GJm_1 (m = 1 to 2). Using the basic lane saturation BPIik (i = 1 to 4, k = 1 to 2) and the basic indication saturation BPIGJm_1 (m = 1 to 2), the additional indication GJm_2A (m = 1 to 2) or Basic indication saturation BPIGJm_2 (m = 1 to 2) of additional indication GJm_2C (m = 1 to 2) ) Is calculated by the equation (9) below.

基本現示飽和度ＢＰＩＧＪｍ＿２
＝ＭＡＸ（基本現示群ＢＧｍに含まれる基本車線群ＢＤｉｋのうち基本現示ＧＪｍ＿１に対応する基本車線群ＢＤｉｋにおける基本車線飽和度ＢＰＩｉｋ）−基本現示飽和度ＢＰＩＧＪｍ＿１＋係数ＣＯ９
・・・式（９） Basic indication saturation BPIGJm_2
= MAX (basic lane saturation BPIik in basic lane group BDik corresponding to basic indication GJm_1 among basic lane groups BDik included in basic indication group BGm) -basic indication saturation BPIGJm_1 + coefficient CO9
... Formula (9)

次に、右折現示ＧＪｍ＿３（ｍ＝１〜２）は、基本現示群ＢＧｍ（ｍ＝１〜２）に含まれる基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）のうち、右折現示ＧＪｍ＿３（ｍ＝１〜２）に対応する基本車線群であり、かつ、付加現示ＧＪｍ＿２Ａ（ｍ＝１〜２）又は付加現示ＧＪｍ＿２Ｃ（ｍ＝１〜２）で通行権を与えられた基本車線群における基本車線飽和度ＢＰＩｉｋ（ｉ＝１〜４、ｋ＝１〜２）から、付加現示ＧＪｍ＿２Ａ（ｍ＝１〜２）又は付加現示ＧＪｍ＿２Ｃ（ｍ＝１〜２）の基本現示飽和度ＢＰＩＧＪｍ＿２（ｍ＝１〜２）を差し引いた値と、基本現示群ＢＧｍ（ｍ＝１〜２）に含まれる基本車線群ＢＤｉｋ（ｉ＝１〜４、ｋ＝１〜２）のうち、右折現示ＧＪｍ＿３（ｍ＝１〜２）に対応する基本現示群であり、かつ、付加現示ＧＪｍ＿２Ａ（ｍ＝１〜２）又は付加現示ＧＪｍ＿２Ｃ（ｍ＝１〜２）で通行権を与えられなかった基本車線群における基本車線飽和度ＢＰＩｉｋ（ｉ＝１〜４、ｋ＝１〜２）とを用いて、右折現示ＧＪｍ＿３（ｍ＝１〜２）の基本現示飽和度ＢＰＩＧＪｍ＿３（ｍ＝１〜２）を以下の式（１０）により算出する。   Next, the right turn indication GJm_3 (m = 1 to 2) is the basic lane group BDik (i = 1 to 4, k = 1 to 2) included in the basic indication group BGm (m = 1 to 2). , A basic lane group corresponding to the right turn indication GJm_3 (m = 1 to 2), and the right of passage with the additional indication GJm_2A (m = 1 to 2) or the additional indication GJm_2C (m = 1 to 2) From the basic lane saturation BPIik (i = 1 to 4, k = 1 to 2) in a given basic lane group, additional indication GJm_2A (m = 1 to 2) or additional indication GJm_2C (m = 1 to 2) And the basic lane group BDik (i = 1 to 4, k = 1 to 1) included in the basic display group BGm (m = 1 to 2) and the value obtained by subtracting the basic display saturation degree BPIGJm_2 (m = 1 to 2). 2) is a basic indication group corresponding to right turn indication GJm — 3 (m = 1 to 2), and additional indication Basic lane saturation BPIik (i = 1 to 4, k = 1 to 2) in the basic lane group that was not given the right of traffic in GJm_2A (m = 1 to 2) or additional indication GJm_2C (m = 1 to 2) Are used to calculate the basic indication saturation BPIGJm — 3 (m = 1 to 2) of the right turn indication GJm — 3 (m = 1 to 2) by the following equation (10).

基本現示飽和度ＢＰＩＧＪｍ＿３
＝ＭＡＸ（ＭＡＸ（０，（（基本現示群ＢＧｍに含まれる基本車線群ＢＤｉｋのうち、右折現示ＧＪｍ＿３に対応する基本現示群であり、かつ、付加現示ＧＪｍ＿２Ａ又は付加現示ＧＪｍ＿２Ｃで通行権を与えられた基本車線群における基本車線飽和度ＢＰＩｉｋ）−基本現示飽和度ＢＰＩＧＪｍ＿２）），基本現示群ＢＧｍに含まれる基本車線群ＢＤｉｋのうち、右折現示ＧＪｍ＿３に対応する基本現示群であり、かつ、付加現示ＧＪｍ＿２Ａ又は付加現示ＧＪｍ＿２Ｃで通行権を与えられなかった基本車線群における基本車線飽和度ＢＰＩｉｋ）
・・・式（１０） Basic indication saturation BPIGJm_3
= MAX (MAX (0, ((in the basic lane group BDik included in the basic display group BGm, the basic display group corresponding to the right turn display GJm_3 and the additional display GJm_2A or the additional display GJm_2C Basic lane saturation BPIik in the basic lane group to which the right of traffic is given-Basic indication saturation BPIGJm_2)), among the basic lane group BDik included in the basic indication group BGm, the basic indication corresponding to the right turn indication GJm_3 Basic lane saturation BPIik in a basic lane group that is a display group and was not given the right of traffic in the additional display GJm_2A or the additional display GJm_2C)
... Formula (10)

なお、基本現示ＧＪｍ＿１（ｍ＝１〜２）と付加現示ＧＪｍ＿２Ｂ（ｍ＝１〜２）はいずれも直進方向と左折方向の車両に通行権を与える現示であるので、相互現示といい、基本現示飽和度ＢＰＩＧＪｍ＿１（ｍ＝１〜２）はその相互現示の飽和度であるので、相互現示飽和度という。また、付加現示ＧＪｍ＿２Ａ（ｍ＝１〜２）及び付加現示ＧＪｍ＿２Ｃ（ｍ＝１〜２）は時差現示であるので、基本現示飽和度ＢＰＩＧＪｍ＿２（ｍ＝１〜２）はその時差現示の飽和度であるので、時差現示飽和度という。また、右折現示ＧＪｍ＿３（ｍ＝１〜２）は右折現示であるので、基本現示飽和度ＢＰＩＧＪｍ＿３（ｍ＝１〜２）はその右折現示の飽和度であるので、右折現示飽和度という。   Note that the basic indication GJm_1 (m = 1 to 2) and the additional indication GJm_2B (m = 1 to 2) are both indications that give right to the vehicle in the straight direction and the left turn direction. The basic display saturation BPIGJm_1 (m = 1 to 2) is the mutual display saturation, and is referred to as the mutual display saturation. Further, since the additional indication GJm_2A (m = 1 to 2) and the additional indication GJm_2C (m = 1 to 2) are time difference indications, the basic indication saturation BPIGJm_2 (m = 1 to 2) is the time difference indication. This is called the time difference display saturation. Further, since the right turn indication GJm_3 (m = 1 to 2) is a right turn indication, the basic indication saturation degree BPIGJm_3 (m = 1 to 2) is the saturation degree of the right turn indication, so the right turn indication saturation. It is called degree.

これを具体的に説明する。基本現示群ＢＧ１は、ステップＳ０４において通常状態であると判定され、ステップＳ０５において時差現示が不要であると判定されているため、基本現示ＧＪ１＿１を提供した後、時差現示でない付加現示ＧＪ１＿２Ｂを提供し、最後に右折現示ＧＪ１＿３を提供する内容に決定する。
基本現示ＧＪ１＿１と付加現示ＧＪ１＿２Ｂはいずれも流入路ＲＩ２及び流入路ＲＩ４の直進方向と左折方向の車両に通行権を与えるものであり、基本現示ＧＪ１＿１に対応する基本車線群は基本車線群ＢＤ２１と基本車線群ＢＤ４１である。よって、基本現示ＧＪ１＿１と付加現示ＧＪ１＿２Ｂに共通する基本現示飽和度ＢＰＩＧＪ１＿１は、上記の式（６）を具体化した以下の式（６ａ）により算出する。 This will be specifically described. Since it is determined that the basic indication group BG1 is in the normal state in step S04 and the time difference indication is unnecessary in step S05, after providing the basic indication GJ1_1, the additional indication that is not the time difference indication is provided. The indication GJ1_2B is provided, and finally the content to provide the right turn indication GJ1_3 is determined.
The basic indication GJ1_1 and the additional indication GJ1_2B both give the right of passage to vehicles in the straight direction and the left turn direction of the inflow path RI2 and the inflow path RI4. The basic lane group corresponding to the basic indication GJ1_1 is the basic lane group They are BD21 and basic lane group BD41. Therefore, the basic indication saturation BPIGJ1_1 common to the basic indication GJ1_1 and the additional indication GJ1_2B is calculated by the following equation (6a) that embodies the above equation (6).

基本現示飽和度ＢＰＩＧＪ１＿１
＝ＭＡＸ（基本車線群ＢＤ２１における基本車線飽和度ＢＰＩ２１，基本車線群ＢＤ４１における基本車線飽和度ＢＰＩ４１）
＝ＭＡＸ（０．００５８９，０．００５５６）
＝０．００５８９
・・・式（６ａ） Basic indication saturation BPIGJ1_1
= MAX (basic lane saturation BPI21 in basic lane group BD21, basic lane saturation BPI41 in basic lane group BD41)
= MAX (0.00589, 0.00556)
= 0.00589
... Formula (6a)

右折現示ＧＪ１＿３は流入路ＲＩ２及び流入路ＲＩ４の右折方向の車両に通行権を与えるものであり、右折現示ＧＪ１＿３に対応する基本車線群は基本車線群ＢＤ２２と基本車線群ＢＤ４２である。よって、右折現示ＧＪ１＿３の基本現示飽和度ＢＰＩＧＪ１＿３は、上記の式（７）を具体化した以下の式（７ａ）により算出する。   The right turn indication GJ1_3 gives the right of passage to vehicles in the right turn direction of the inflow path RI2 and the inflow path RI4, and the basic lane groups corresponding to the right turn indication GJ1_3 are the basic lane group BD22 and the basic lane group BD42. Therefore, the basic indication saturation BPIGJ1_3 of the right turn indication GJ1_3 is calculated by the following equation (7a) that embodies the above equation (7).

基本現示飽和度ＧＰＩＧＪ１＿３
＝ＭＡＸ（基本車線群ＢＤ２２における基本車線飽和度ＢＰＩ２２，基本車線群ＢＤ４２における基本車線飽和度ＢＰＩ４２）
＝ＭＡＸ（０．００１１１，０．００１１１）
＝０．００１１１
・・・式（７ａ） Basic indication saturation GPIGJ1_3
= MAX (basic lane saturation BPI22 in basic lane group BD22, basic lane saturation BPI42 in basic lane group BD42)
= MAX (0.00111, 0.00111)
= 0.00111
... Formula (7a)

基本現示群ＢＧ２は、ステップＳ０４において通常状態であると判定され、ステップＳ０５において時差現示が必要であると判定されているため、基本現示ＧＪ２＿１を提供した後、時差現示である付加現示ＧＪ２＿２Ａ又は付加現示ＧＪ２＿２Ｃを提供し、最後に右折現示ＧＪ２＿３を提供する内容に決定する。付加現示ＧＪ２＿２Ａ又は付加現示ＧＪ２＿２Ｃのいずれを選定するかについては、ステップＳ０５において算出した阻害交通量ＢＴＶＯ２は基本車線交通量ＢＴＶ３１に含まれるので、この基本車線交通量ＢＴＶ３１に対応する流入路ＲＩ３の全方向の車両に通行権を与える付加現示ＧＪ２＿２Ｃを選定する。   Since it is determined that the basic indication group BG2 is in the normal state in step S04 and the time difference indication is necessary in step S05, the basic indication group BG2 is added as a time difference indication after providing the basic indication GJ2_1. The present display GJ2_2A or the additional display GJ2_2C is provided, and the content to be provided is the right turn display GJ2_3. As to whether to select the additional indication GJ2_2A or the additional indication GJ2_2C, the inhibition traffic volume BTVO2 calculated in step S05 is included in the basic lane traffic volume BTV31. Therefore, the inflow path RI3 corresponding to the basic lane traffic volume BTV31 is selected. The additional display GJ2_2C that gives the right of traffic to vehicles in all directions is selected.

基本現示ＧＪ２＿１は、基本現示群ＢＧ２に含まれる基本車線群ＢＤ１１、ＢＤ１２、ＢＤ３１、ＢＤ３２のうち基本現示ＧＪ２＿１に対応する基本車線群ＢＤ１１、ＢＤ３１の共通する台数の車両に通行権を与えるものであるため、この基本現示ＧＪ２＿１に対応する基本車線群ＢＤ１１、ＢＤ３１における基本車線飽和度ＢＰＩ１１、ＢＰＩ３１を用いて、基本現示ＧＪ２＿１の基本現示飽和度ＢＰＩＧＪ２＿１を、上記の式（８）を具体化した以下の式（８ａ）により算出する。   The basic indication GJ2_1 gives the right of passage to the number of vehicles in the basic lane groups BD11, BD31 corresponding to the basic indication GJ2_1 among the basic lane groups BD11, BD12, BD31, BD32 included in the basic indication group BG2. Therefore, using the basic lane saturations BPI11 and BPI31 in the basic lane groups BD11 and BD31 corresponding to the basic indication GJ2_1, the basic indication saturation BPIGJ2_1 of the basic indication GJ2_1 is expressed by the above equation (8). Is calculated by the following equation (8a).

基本現示飽和度ＢＰＩＧＪ２＿１
＝ＭＩＮ（基本車線群ＢＤ１１における基本車線飽和度ＢＰＩ１１，基本車線群ＢＤ３１における基本車線飽和度ＢＰＩ３１）
＝ＭＩＮ（０．００５５６，０．００８３３）
＝０．００５５６
・・・式（８ａ） Basic indication saturation BPIGJ2_1
= MIN (basic lane saturation BPI11 in basic lane group BD11, basic lane saturation BPI31 in basic lane group BD31)
= MIN (0.00556, 0.00833)
= 0.00556
... Formula (8a)

次に、付加現示ＧＪ２＿２Ｃは、基本現示群ＢＧ２に含まれる基本車線群ＢＤ１１、ＢＤ１２、ＢＤ３１、ＢＤ３２のうち基本現示ＧＪ２＿１に対応する基本車線群ＢＤ１１、ＢＤ３１における基本車線交通量ＢＴＶ１１、ＢＴＶ３１の差分（すなわち、阻害交通量ＢＴＶＯ２）に該当する台数の車両に通行権を与えるものであるため、この基本現示ＧＪ２＿１に対応する基本車線群ＢＤ１１、ＢＤ３１における基本車線飽和度ＢＰＩ１１、ＢＰＩ３１を用いて、付加現示ＧＪ２＿２Ｃの基本現示飽和度ＢＰＩＧＪ２＿２を、上記の式（９）を具体化した以下の式（９ａ）により算出する。ただし、係数ＣＯ９は０．０とする。   Next, the additional indication GJ2_2C is the basic lane traffic BTV11, BTV31 in the basic lane groups BD11, BD31 corresponding to the basic indication GJ2_1 among the basic lane groups BD11, BD12, BD31, BD32 included in the basic indication group BG2. Therefore, the basic lane saturation BPI11 and BPI31 in the basic lane groups BD11 and BD31 corresponding to the basic indication GJ2_1 are used. Then, the basic indication saturation BPIGJ2_2 of the additional indication GJ2_2C is calculated by the following equation (9a) that embodies the above equation (9). However, the coefficient CO9 is 0.0.

基本現示飽和度ＢＰＩＧＪ２＿２
＝ＭＡＸ（基本車線群ＢＤ１１における基本車線飽和度ＢＰＩ１１，基本車線群ＢＤ３１における基本車線飽和度ＢＰＩ３１）−基本現示飽和度ＢＰＩＧＪ１＿１＋係数ＣＯ９
＝ＭＡＸ（０．００５５６，０．００８３３）−０．００５５６＋０．０
＝０．００２７７
・・・式（９ａ） Basic indication saturation BPIGJ2_2
= MAX (basic lane saturation BPI11 in basic lane group BD11, basic lane saturation BPI31 in basic lane group BD31) −basic display saturation BPIGJ1_1 + coefficient CO9
= MAX (0.00556, 0.00833) -0.00556 + 0.0
= 0.00277
... Formula (9a)

右折現示ＧＪ２＿３は、基本現示群ＢＧ２に含まれる基本車線群ＢＤ１１、ＢＤ１２、ＢＤ３１、ＢＤ３２のうち、右折現示ＧＪ２＿３に対応する基本車線群であり、かつ、付加現示ＧＪ２＿２Ｃで通行権を与えられた基本車線群である、基本車線群ＢＤ３２における基本車線飽和度ＢＰＩ３２から、基本現示飽和度ＢＰＩＧＪ２＿２を差し引いた値と、基本現示群ＢＧ２に含まれる基本車線群ＢＤ１１、ＢＤ１２、ＢＤ３１、ＢＤ３２のうち、右折現示ＧＪ２＿３に対応する基本車線群であり、かつ、付加現示ＧＪ２＿２Ｃで通行権を与えられなかった基本車線群である、基本車線群ＢＤ１２における基本車線飽和度ＢＰＩ１２とを用いて、右折現示ＧＪ２＿３の基本現示飽和度ＢＰＩＧＪ２＿３を、上記の式（10）を具体化した以下の式（１０ａ）により算出する。   The right turn indication GJ2_3 is a basic lane group corresponding to the right turn indication GJ2_3 among the basic lane groups BD11, BD12, BD31, and BD32 included in the basic indication group BG2, and has the right to pass through the additional indication GJ2_2C. A value obtained by subtracting the basic indication saturation BPIGJ2_2 from the basic lane saturation BPI32 in the basic lane group BD32 which is a given basic lane group, and the basic lane groups BD11, BD12, BD31 included in the basic indication group BG2, Of the BD32, the basic lane group corresponding to the right turn indication GJ2_3 and the basic lane saturation level BPI12 in the basic lane group BD12, which is a basic lane group to which no additional right is given in the additional indication GJ2_2C, is used. Then, the basic indication saturation BPIGJ2_3 of the right turn indication GJ2_3 is expressed by the following equation that embodies the above equation (10). Calculated by 10a).

基本現示飽和度ＢＰＩＧＪ２＿３
＝ＭＡＸ（ＭＡＸ（０，基本車線飽和度ＢＰＩ３２−基本現示飽和度ＢＰＩＧＪ２＿２），基本車線飽和度ＢＰＩ１２）
＝ＭＡＸ（ＭＡＸ（０，０．００２２２−０．００２７７），０．０００５６）
＝０．０００５６
・・・式（１０ａ） Basic indication saturation BPIGJ2_3
= MAX (MAX (0, basic lane saturation BPI32-basic indication saturation BPIGJ2_2), basic lane saturation BPI12)
= MAX (MAX (0, 0.00222-0.00277), 0.00056)
= 0.00056
... Formula (10a)

これらをまとめると図１４のようになる。   These are summarized as shown in FIG.

次に、演算部１０１は、ステップＳ０６で求めた基本現示飽和度を合計して交差点飽和度を算出し、それぞれの基本現示飽和度を交差点飽和度で除してスプリットを算出する（ステップＳ０６）。   Next, the calculation unit 101 calculates the intersection saturation by adding up the basic indication saturations obtained in step S06, and calculates the split by dividing the respective basic indication saturations by the intersection saturation (steps). S06).

具体的に説明すると、基本現示飽和度ＢＰＩＧＪ１＿１、基本現示飽和度ＢＰＩＧＪ１＿３、基本現示飽和度ＢＰＩＧＪ２＿１、基本現示飽和度ＢＰＩＧＪ２＿２、基本現示飽和度ＢＰＩＧＪ２＿３を合計して交差点飽和度を求めると、０．００５８９＋０．００１１１＋０．００５５６＋０．００２７７＋０．０００５６＝０．０１５８９となる。基本現示飽和度ＢＰＩＧＪ１＿１を交差点飽和度で除してスプリットＳＰ１＿１を求めると、０．００５８９／０．０１５８９＝３７％となる。同様に、基本現示飽和度ＢＰＩＧＪ２＿１、基本現示飽和度ＢＰＩＧＪ２＿２、基本現示飽和度ＢＰＩＧＪ２＿３をそれぞれ交差点飽和度で除してスプリットＳＰ１＿３、スプリットＳＰ２＿１、スプリットＳＰ２＿２、スプリットＳＰ２＿３を求めると、７％、３５％、１７％、４％となる。
これらをまとめると図１５のようになる。 Specifically, the basic indication saturation BPIGJ1_1, the basic indication saturation BPIGJ1_3, the basic indication saturation BPIGJ2_1, the basic indication saturation BPIGJ2_2, and the basic indication saturation BPIGJ2_3 are summed to obtain the intersection saturation. 0.00589 + 0.00111 + 0.00556 + 0.00277 + 0.00056 = 0.0589. When the split SP1_1 is obtained by dividing the basic indication saturation BPIGJ1_1 by the intersection saturation, 0.00589 / 0.0589 = 37%. Similarly, when the split SP1_3, split SP2_1, split SP2_2, and split SP2_3 are obtained by dividing the basic display saturation BPIGJ2_1, the basic display saturation BPIGJ2_2, and the basic display saturation BPIGJ2_3 by the intersection saturation, respectively, 7% 35%, 17% and 4%.
These are summarized as shown in FIG.

〔比較例〕
ここで、比較例となる従来の固定式信号制御方式における信号制御パラメータ算出処理の手順について説明する。
固定式信号制御方式における現示構成の例を図１６に示す。
現示１（歩車）では、流入路ＲＩ２と流入路ＲＩ４の全方向（直進方向、左折方向、右折方向）の車両と横断歩道ＣＲ１、横断歩道ＣＲ３の歩行者に対して通行権が与えられる。
現示１（車両）では、流入路ＲＩ２と流入路ＲＩ４の全方向（直進方向、左折方向、右折方向）の車両に対して通行権が与えられる。
現示２（歩車）では、流入路ＲＩ１と流入路ＲＩ３の全方向（直進方向、左折方向、右折方向）の車両と横断歩道ＣＲ２、横断歩道ＣＲ４の歩行者に対して通行権が与えられる。
現示２（車両）では、流入路ＲＩ１と流入路ＲＩ３の全方向（直進方向、左折方向、右折方向）の車両に対して通行権が与えられる。 [Comparative Example]
Here, a procedure of signal control parameter calculation processing in a conventional fixed signal control method as a comparative example will be described.
An example of the present configuration in the fixed signal control system is shown in FIG.
In the present indication 1 (walking vehicle), right of passage is given to vehicles in all directions (straight direction, left turn direction, right turn direction) of the inflow path RI2 and the inflow path RI4 and pedestrians in the pedestrian crossing CR1 and pedestrian crossing CR3. .
In the present indication 1 (vehicle), the right to pass is given to vehicles in all directions (straight forward direction, left turn direction, right turn direction) of the inflow path RI2 and the inflow path RI4.
In the present indication 2 (walking vehicle), right of passage is given to vehicles in all directions (straight direction, left turn direction, right turn direction) of the inflow path RI1 and the inflow path RI3 and pedestrians in the pedestrian crossing CR2 and pedestrian crossing CR4. .
In the present indication 2 (vehicle), the right to pass is given to vehicles in all directions (straight forward direction, left turn direction, right turn direction) of the inflow path RI1 and the inflow path RI3.

まず、過去の１サイクルにおけるそれぞれの流入路ＲＩｉ（ｉ＝１〜４）における交通量Ｖｉ（ｉ＝１〜４）を求める。
実施形態１と同様に、それぞれの流入路ＲＩｉ（ｉ＝１〜４）の下流端の各車線ｊ（ｊ＝１〜２）における交通量が図７に示すような内容であったとすると、流入路ＲＩ１の交通量Ｖ１、流入路ＲＩ２の交通量Ｖ２、流入路ＲＩ３の交通流Ｖ３、流入路ＲＩ４の交通量Ｖ４は以下の式（１１−１）〜式（１１−４）のように算出される。 First, the traffic volume Vi (i = 1 to 4) in each inflow path RIi (i = 1 to 4) in one past cycle is obtained.
As in the first embodiment, if the traffic volume in each lane j (j = 1 to 2) at the downstream end of each inflow path RIi (i = 1 to 4) is as shown in FIG. The traffic volume V1 of the road RI1, the traffic volume V2 of the inflow path RI2, the traffic flow V3 of the inflow path RI3, and the traffic volume V4 of the inflow path RI4 are calculated as in the following equations (11-1) to (11-4). Is done.

Ｖ１＝１０［台］＋１［台］＝１１［台］・・・式（１１−１）
Ｖ２＝１０［台］＋２［台］＝１２［台］・・・式（１１−２）
Ｖ３＝１５［台］＋４［台］＝１９［台］・・・式（１１−３）
Ｖ４＝１０［台］＋２［台］＝１２［台］・・・式（１１−４） V1 = 10 [units] +1 [units] = 11 [units] (11-1)
V2 = 10 [units] +2 [units] = 12 [units] (11-2)
V3 = 15 [units] +4 [units] = 19 [units] (11-3)
V4 = 10 [units] +2 [units] = 12 [units] (11-4)

次に、上記で算出したそれぞれの流入路ＲＩｉ（ｉ＝１〜４）の交通量Ｖｉ（ｉ＝１〜４）を、それぞれの流入路ＲＩｉ（ｉ＝１〜４）の飽和交通流率ＰＶｉ（ｉ＝１〜４）で除して、それぞれの流入路ＲＩｉ（ｉ＝１〜４）の飽和度ＰＩｉ（ｉ＝１〜４）を算出する。
上記の具体例では、飽和交通流率ＰＶｉ（ｉ＝１〜４）がいずれも１８００［台／青１時間］であるとすると、流入路ＲＩ１の飽和度ＰＩ１、流入路ＲＩ２の飽和度ＰＩ２、流入路ＲＩ３の飽和度ＰＩ３、流入路ＲＩ４の飽和度ＰＩ４は以下の式（１２−１）〜式（１２−２）のように算出される。 Next, the traffic volume Vi (i = 1 to 4) of each inflow path RIi (i = 1 to 4) calculated above is used as the saturated traffic flow rate PVi of each inflow path RIi (i = 1 to 4). Dividing by (i = 1 to 4), the saturation PIi (i = 1 to 4) of each inflow path RIi (i = 1 to 4) is calculated.
In the above specific example, assuming that the saturated traffic flow rate PVi (i = 1 to 4) is 1800 [unit / blue 1 hour], the saturation PI1 of the inflow channel RI1, the saturation PI2 of the inflow channel RI2, The saturation PI3 of the inflow channel RI3 and the saturation PI4 of the inflow channel RI4 are calculated as in the following equations (12-1) to (12-2).

ＰＩ１＝Ｖ１／ＰＶ１＝１１［台］／１８００［台／青１時間］＝０．００６１
・・・式（１２−１）
ＰＩ２＝Ｖ２／ＰＶ２＝１２［台］／１８００［台／青１時間］＝０．００６７
・・・式（１２−２）
ＰＩ３＝Ｖ３／ＰＶ３＝１９［台］／１８００［台／青１時間］＝０．０１０６
・・・式（１２−３）
ＰＩ４＝Ｖ４／ＰＶ４＝１２［台］／１８００［台／青１時間］＝０．００６７
・・・式（１２−４） PI1 = V1 / PV1 = 11 [unit] / 1800 [unit / blue 1 hour] = 0.006
... Formula (12-1)
PI2 = V2 / PV2 = 12 [unit] / 1800 [unit / blue 1 hour] = 0.0007
... Formula (12-2)
PI3 = V3 / PV3 = 19 [unit] / 1800 [unit / blue one hour] = 0.0106
... Formula (12-3)
PI4 = V4 / PV4 = 12 [unit] / 1800 [unit / blue 1 hour] = 0.0007
... Formula (12-4)

次に、各現示において通行権を与えられている流入路ＲＩｉ（ｉ＝１〜４）の飽和度ＰＩｉ（ｉ＝１〜４）の最大値を求め、それをその現示における現示飽和度ＰＧＪｋ（ｋ＝１〜２）とする。
上記の具体例では、現示１において通行権を与えられている流入路は流入路ＲＩ２と流入路ＲＩ４であるので、対応する飽和度ＰＩ２と飽和度ＰＩ４の最大値を求め、それを現示１における現示飽和度ＰＧＪ１とする。飽和度ＰＩ２は０．００６７、飽和度ＰＩ４は０．００６７であるため、飽和度ＰＧＪ１はこれらのうちの最大値である０．００６７となる。一方、現示２において通行権を与えられている流入路は流入路ＲＩ１と流入路ＲＩ３であるので、対応する飽和度ＰＩ１と飽和度ＰＩ３の最大値を求め、それを現示２における現示飽和度ＰＧＪ２とする。飽和度ＰＩ１は０．００６１、飽和度ＰＩ３は０．０１０６であるので、飽和度ＰＧＪ２はこれらのうちの最大値である０．０１０６となる。 Next, the maximum value of the saturation degree PIi (i = 1 to 4) of the inflow channel RIi (i = 1 to 4) to which the right of passage is given in each indication is obtained, and this is expressed as the indication saturation in the indication. Degree PGJk (k = 1 to 2).
In the above specific example, since the inflow passages given the right of passage in the present indication 1 are the inflow passage RI2 and the inflow passage RI4, the maximum values of the corresponding saturation PI2 and saturation PI4 are obtained and indicated. The displayed saturation PGJ1 at 1. Since the saturation degree PI2 is 0.0067 and the saturation degree PI4 is 0.0067, the saturation degree PGJ1 is 0.0067 which is the maximum value of these. On the other hand, since the inflow channels to which the right of passage is given in the present indication 2 are the inflow passage RI1 and the inflow passage RI3, the maximum values of the corresponding saturation PI1 and saturation PI3 are obtained, and these are shown in the present indication 2. Let saturation be PGJ2. Since the saturation degree PI1 is 0.0061 and the saturation degree PI3 is 0.0106, the saturation degree PGJ2 is 0.0106 which is the maximum value of these.

次に、それぞれの現示飽和度ＰＧＪｋ（ｋ＝１〜２）を合計して交差点飽和度を算出し、それぞれの現示飽和度ＰＧＪｋ（ｋ＝１〜２）を交差点飽和度で除して、それぞれの現示のスプリットＳＰｋ（ｋ＝１〜２）を求める。
上記の具体例では、交差点飽和度は現示飽和度ＰＧＪ１と現示飽和度ＰＧＪ２の合計値となるため、０．００６７＋０．０１０６＝０．０１７３となる。現示１のスプリットＳＰ１、現示２のスプリットＳＰ２は、以下の式（１３−１）〜式（１３−２）のように算出される。 Next, the respective saturation points PGJk (k = 1 to 2) are summed to calculate the intersection saturation, and the respective saturation points PGJk (k = 1 to 2) are divided by the intersection saturation. Each of the present split SPk (k = 1 to 2) is obtained.
In the above specific example, the intersection saturation is the total value of the displayed saturation PGJ1 and the displayed saturation PGJ2, and therefore 0.0067 + 0.0106 = 0.0173. The split SP1 of the current indication 1 and the split SP2 of the current indication 2 are calculated as in the following formulas (13-1) to (13-2).

ＳＰ１＝ＰＧＪ１／交差点飽和度＝０．００６７／０．０１７３＝３９％
・・・式（１３−１）
ＳＰ２＝ＰＧＪ２／交差点飽和度＝０．０１０６／０．０１７３＝６１％
・・・式（１３−２） SP1 = PGJ1 / intersection saturation = 0.0067 / 0.0173 = 39%
... Formula (13-1)
SP2 = PGJ2 / intersection saturation = 0.0106 / 0.0173 = 61%
... Formula (13-2)

〔実施形態と比較例との比較〕
比較例では、流入路ＲＩ１と流入路ＲＩ３には、交通量の多い流入路ＲＩ３の飽和度ＰＩ３を考慮して、６１％という大きいスプリットが与えられている。流入路ＲＩ３においては車両が１９［台］と多いので、これらの車両を捌くためにはこのくらい大きいスプリットが与えられるのが望ましいが、流入路ＲＩ１においては直進方向と左折方向の車両は１１［台］と流入路ＲＩ３に比べて少ないので、このように大きいスプリットが与えられても、そのうちの半分程度は無駄になっている。すなわち、流入路ＲＩ１においては、車両を捌くのに必要となるスプリットよりも大きいスプリットが与えられているため、車両が捌けているのに青信号が無駄に提示されるという状態になっている。その一方で、流入路ＲＩ２と流入路ＲＩ４には、スプリットは３９％しか与えられておらず、流入路ＲＩ１における無駄な青信号のしわ寄せが流入路ＲＩ２と流入路ＲＩ４に来ている。 [Comparison of Embodiment and Comparative Example]
In the comparative example, a large split of 61% is given to the inflow channel RI1 and the inflow channel RI3 in consideration of the saturation PI3 of the inflow channel RI3 with a large traffic volume. Since the number of vehicles in the inflow path RI3 is as large as 19 [units], it is desirable to give such a large split in order to run these vehicles, but in the inflow path RI1, there are 11 [ And the inflow channel RI3, even if such a large split is given, about half of that is wasted. That is, in the inflow path RI1, since a split larger than the split necessary for driving the vehicle is given, the green signal is unnecessarily presented even though the vehicle is making money. On the other hand, only 39% of the split is given to the inflow path RI2 and the inflow path RI4, and unnecessary blue signal wrinkles in the inflow path RI1 come to the inflow path RI2 and the inflow path RI4.

これに対して、実施形態１では、流入路ＲＩ１と流入路ＲＩ３には、基本現示ＧＪ２＿１において、それぞれの直進方向と左折方向の車両の共通する台数（１０［台］）に対応するスプリット（３５％）が与えられているので、流入路ＲＩ１、流入路ＲＩ３ともに無駄な青時間がない。   On the other hand, in the first embodiment, the inflow channel RI1 and the inflow channel RI3 have splits (10 [units]) corresponding to the common number (10 [units]) of vehicles in the straight traveling direction and the left turn direction in the basic indication GJ2_1. 35%), both the inflow channel RI1 and the inflow channel RI3 have no wasted green time.

そして、直進方向と左折方向の交通量の多い流入路ＲＩ３については、その次の付加現示ＧＪ２＿２Ｃにおいて、流入路ＲＩ１との差分の台数である阻害交通量（５［台］）を捌くのに必要となるスプリットが与えられる。すなわち、付加現示ＧＪ２＿２Ｃにおいてはこの阻害交通量（５［台］）に対応するスプリット（１１％）が与えられる。また、この付加現示ＧＪ２＿２Ｃにおいては、流入路ＲＩ３の右折方向の車両にも通行権が与えられている。流入路ＲＩ３の右折方向の車両の台数は４［台］であり、上述の阻害交通量の５［台］よりも少ないので、右折方向の車両はこの付加現示ＧＪ２＿２Ｃで全て捌けることになる。この付加現示ＧＪ２＿２Ｃにおいても、流入路ＲＩ３については車両を捌くのに必要なスプリットがちょうど与えられるため無駄な青時間がなく、流入路ＲＩ１についてはそもそも通行権が与えられていないため無駄な青時間がない。   For the inflow route RI3 with a large amount of traffic in the straight direction and the left turn direction, in the next additional indication GJ2_2C, the obstructed traffic volume (5 [units]), which is the difference from the inflow route RI1, is used. The required split is given. That is, in the additional display GJ2_2C, a split (11%) corresponding to this obstructed traffic volume (5 [units]) is given. Further, in this additional indication GJ2_2C, the right of passage is also given to the vehicle in the right turn direction of the inflow path RI3. Since the number of vehicles in the right turn direction of the inflow path RI3 is 4 [units], which is less than the above-mentioned 5 [units] of the obstructed traffic, all the vehicles in the right turn direction can make a profit with this additional indication GJ2_2C. Also in this additional indication GJ2_2C, there is no wasted blue time for the inflow path RI3 just because the split necessary to run the vehicle is given, and no right of passage is given to the inflow path RI1 in the first place because it is a wasteful blue no time.

その次の右折現示ＧＪ２＿３においては、流入路ＲＩ１の右折方向の車両の台数（１［台］）のみを捌けば良いので、この台数（１［台］）に対応するスプリット（４％）が与えられる。よって、流入路ＲＩ１については車両を捌くのに必要なスプリットがちょうど与えられるため無駄な青時間がなく、流入路ＲＩ３については右折方向の車両がないためこの１台分の無駄な青時間が出ているに過ぎない。   In the next right turn indication GJ2_3, it is only necessary to make the number of vehicles (1 [unit]) in the right turn direction of the inflow path RI1, so the split (4%) corresponding to this number (1 [unit]) Given. Therefore, there is no wasteful green time for the inflow route RI1 because the split necessary for driving the vehicle is just given, and there is no vehicle in the right turn direction for the inflow route RI3. It ’s just that.

このように、実施形態においては、流入路ＲＩ１と流入路ＲＩ３における無駄な青時間を大幅に削減することができるため、流入路ＲＩ１と流入路ＲＩ３に与えられるスプリットは比較例の６１％よりも大幅に少ない５６％となっている。   As described above, in the embodiment, the wasteful blue time in the inflow path RI1 and the inflow path RI3 can be significantly reduced, so that the split given to the inflow path RI1 and the inflow path RI3 is more than 61% of the comparative example. This is 56%, which is much less.

その結果、流入路ＲＩ２と流入路ＲＩ４に比較例の３９％よりも多い４４％を与えることができる。   As a result, 44%, which is more than 39% of the comparative example, can be given to the inflow channel RI2 and the inflow channel RI4.

以上のように、本発明によれば、流入路ＲＩｉ（ｉ＝１〜４）のうちのある流入路（第１の流入路）における少なくとも直進方向を含む基本車線群における基本車線交通量の合計（第１交通量）と、第１の流入路に対向する第２の流入路における少なくとも直進方向を含む基本車線群における基本車線交通量の合計（第２交通量）との差分である阻害交通量に基づいて、第１の流入路に対して通行権を与え、第２の流入路に対して通行権を与えない時差現示（第１時差現示）、又は、第２の流入路に対して通行権を与え、第１の流入路に対して通行権を与えない時差現示（第２時差現示）を用いるか否かを判定するので、交通状況に応じて柔軟に現示構成を変更することができる。   As described above, according to the present invention, the total amount of basic lane traffic in the basic lane group including at least the straight-ahead direction in an inflow path (first inflow path) of the inflow paths RIi (i = 1 to 4). Obstacle traffic that is the difference between the (first traffic volume) and the sum of the basic lane traffic volume (second traffic volume) in the basic lane group including at least the straight-ahead direction in the second inflow path facing the first inflow path Based on the amount, the right of passage is given to the first inflow path and the right of passage is not given to the second inflow path (first time difference display), or the second inflow path is Since it is determined whether or not to use the time difference indication (second time difference indication) that gives the right of traffic to the first inflow route, the display configuration is flexible according to the traffic situation Can be changed.

また、阻害交通量に基づいて時差現示を用いると判定した場合、第１の流入路の少なくとも直進方向の基本車線群と第２の流入路の少なくとも直進方向の基本車線群との双方に通行権を与える相互現示においては、第１の流入路の当該基本車線群における基本車線飽和度（第１飽和度）と第２の流入路の当該基本車線群における基本車線飽和度（第２飽和度）の小さい方に相当する相互現示飽和度を用いて、スプリットなどの信号制御パラメータを算出するので、第１の流入路と第２の流入路のいずれにおいても無駄な青時間（青信号の時間）を生じないようにすることができる。
また、時差現示においては、第１飽和度と第２飽和度の大きい方から相互現示飽和度を減じた時差現示飽和度を用いて、スプリットなどの信号制御パラメータを算出する。第１の流入路と第２の流入路のうち、時差現示において通行権を与えられている流入路については、相互現示において捌くことができなかった交通量を捌くために通行権が与えられるので、無駄な青時間を生じないようにすることができ、時差現示において通行権を与えられていない流入路については、そもそも青時間がないので、無駄な青時間を生じないようにすることができる。
このように、無駄な青時間を少なくして、効率良く交通流を制御することができる。 In addition, when it is determined that the time difference display is used based on the obstructed traffic volume, the vehicle travels in both the basic lane group at least in the straight line direction of the first inflow path and the basic lane group in the at least straight line direction of the second inflow path. In the mutual representation that gives the right, the basic lane saturation (first saturation) in the basic lane group of the first inflow path and the basic lane saturation (second saturation) in the basic lane group of the second inflow path Since the signal control parameters such as split are calculated using the mutual display saturation corresponding to the smaller degree, the wasteful blue time (blue signal of the blue signal) is calculated in both the first inflow path and the second inflow path. Time).
In the time difference indication, a signal control parameter such as split is calculated using the time difference indication saturation obtained by subtracting the mutual indication saturation from the larger one of the first saturation and the second saturation. Of the first inflow path and the second inflow path, for the inflow path that is given the right of traffic in the time difference display, the right of traffic is given in order to obtain the traffic volume that could not be reached in the mutual display. Therefore, it is possible to prevent the generation of wasted blue time, and since there is no blue time in the first place for the inflow channel that is not given the right of passage in the time difference display, the useless blue time is prevented from being generated. be able to.
In this way, it is possible to control the traffic flow efficiently by reducing wasted green time.

また、第１の流入路と第２の流入路のうち、時差現示において通行権を与えられている流入路については、時差現示において右折方向の基本車線群における基本車線交通量の一部又は全部が捌けているので、その次の右折現示においては、時差現示において捌け切れなかった交通量を捌くことができれば良い。そのため、この流入路については、右折現示において右折方向の基本車線群における基本車線交通量を捌くための飽和度は、右折方向の基本車線群における基本車線飽和度（時差現示右折方向飽和度）から、時差現示における時差現示飽和度を減じて求めた右折現示第１候補飽和度となる。
一方、第１の流入路と第２の流入路のうち、時差現示において通行権を与えられていない流入路については、時差現示において右折方向の基本車線群における基本車線交通量は全く捌けていないので、その次の右折現示においては、この右折方向の交通量の全てを捌くことができれば良い。そのため、この流入路については、右折現示において右折方向の基本車線群における基本車線交通量を捌くための飽和度は、右折方向の基本車線群における基本車線飽和度（時差現示第２候補飽和度）となる。
従って、最終的に右折現示において第１の流入路及び第２の流入路の右折方向の基本車線群における基本車線交通量を捌くための右折現示飽和度を、第１の流入路と第２の流入路のうち、時差現示において通行権を与えられている流入路における右折現示第１候補飽和度と、時差現時において通行権を与えられていない流入路における右折現示第２候補飽和度の大きい方とすれば、第１の流入路及び第２の流入路における右折方向の交通量を適切に捌くことができる。 Of the first inflow path and the second inflow path, for the inflow path that is given the right of traffic in the time difference indication, a part of the basic lane traffic in the basic lane group in the right turn direction in the time difference indication Or, since everything is profitable, it is only necessary that the traffic volume that could not be made in the time difference display can be obtained in the next right turn display. Therefore, for this inflow route, the saturation for driving the basic lane traffic in the basic lane group in the right turn direction in the right turn display is the basic lane saturation in the basic lane group in the right turn direction (time difference display right turn direction saturation degree). ), The right turn indication first candidate saturation is obtained by subtracting the time difference indication saturation in the time difference indication.
On the other hand, of the first inflow path and the second inflow path, for the inflow path that is not given the right of traffic in the time difference display, the basic lane traffic in the basic lane group in the right turn direction in the time difference display is completely profitable. In the next right turn display, it is only necessary to be able to get all the traffic in the right turn direction. Therefore, for this inflow route, the saturation for driving the basic lane traffic in the basic lane group in the right turn direction in the right turn display is the basic lane saturation in the basic lane group in the right turn direction (second time difference display candidate saturation) Degree).
Therefore, in the final right turn, the right turn indication saturation for spreading the basic lane traffic in the basic lane group in the right turn direction of the first inflow passage and the second inflow passage is expressed as the first inflow passage and the first inflow passage. Among the two inflow channels, the right turn first candidate saturation in the inflow channel given the right of passage in the time difference indication and the right right turn second candidate in the inflow route not given the right of passage in the time difference present If the degree of saturation is larger, the traffic volume in the right turn direction in the first inflow path and the second inflow path can be appropriately increased.

また、時差現示は、少なくとも黄時間と赤時間と時差最小保証青時間との合計以上の時間を要する。阻害交通量から通行するために要する時間である阻害交通量通行時間が、この合計よりも小さい場合には、せっかく時差現示を用いても、無駄な青時間が生じてしまう。一方、阻害交通量時間がこの合計以上であれば、時差現示を用いても、無駄な青時間が生じない。従って、阻害交通量通行時間とこの合計とを比較することにより、時差現示を用いる必要があるかを判定するので、無駄な青時間を生じないように、適切な現示構成を用いることができる。   The time difference display requires at least a time longer than the sum of the yellow time, the red time, and the time difference minimum guaranteed blue time. If the obstructed traffic volume transit time, which is the time required to travel from the obstructed traffic volume, is smaller than this total, useless blue time will occur even if the time difference display is used. On the other hand, if the obstructed traffic time is greater than or equal to this total, no wasteful blue time will occur even if the time difference display is used. Therefore, it is determined whether it is necessary to use the time difference display by comparing the obstructed traffic passage time with this sum, so that an appropriate display configuration should be used so as not to cause unnecessary blue time. it can.

また、第１の流入路と第２の流入路のそれぞれの基本車線群の基本車線交通量に基づいて、第１の流入路と第２の流入路の交通状態が閑散状態であるか否かを判定し、いずれか一方が閑散状態でない場合に、第１時差現示を用いるか否か、あるいは、第２時差現示を用いるか否かを判定するので、時差現示を適切に用いて効率良く交通流を制御することができる。   Whether the traffic conditions of the first inflow path and the second inflow path are in a quiet state based on the basic lane traffic of the basic lane groups of the first inflow path and the second inflow path. When either one is not in a quiet state, it is determined whether to use the first time difference indication or whether to use the second time difference indication, so use the time difference indication appropriately. Traffic flow can be controlled efficiently.

上述の実施形態においては、信号制御装置１が信号制御パラメータを算出して、この信号制御パラメータを含む信号制御指令を交通信号制御機２に送信し、交通信号制御機２が信号制御指令を受信して、この信号制御指令に基づいて信号灯器３の各信号灯の点灯、消灯及び点滅を制御する構成であったが、これに限定されるわけではない。交通信号制御機２が、信号制御装置１の信号制御パラメータ算出機能を備えており、算出した信号制御パラメータに基づいて信号灯器３の点灯、消灯及び点滅を制御する構成であっても良い。   In the above-described embodiment, the signal control device 1 calculates a signal control parameter, transmits a signal control command including this signal control parameter to the traffic signal controller 2, and the traffic signal controller 2 receives the signal control command. And although it was the structure which controls lighting, extinction, and blinking of each signal lamp of the signal lamp device 3 based on this signal control command, it is not necessarily limited to this. The traffic signal controller 2 may have a signal control parameter calculation function of the signal control device 1 and may be configured to control lighting, extinguishing and blinking of the signal lamp device 3 based on the calculated signal control parameter.

また、上述の実施形態においては、それぞれの流入路の下流端の車線数は２であったが、これに限定されず、１でも、３以上であっても良い。   Moreover, in the above-mentioned embodiment, although the number of lanes of the downstream end of each inflow path was 2, it is not limited to this, 1 or 3 or more may be sufficient.

また、上述の実施形態においては、それぞれの流入路の下流端の各車線の車線別車種換算交通量を用いて信号制御パラメータを算出していたが、これに限定されるわけではない。この方が効率良く交通流を制御することができるが、車両の種類を考慮しない車線別交通量を用いて信号制御パラメータを算出しても、ある程度は効率良く交通流を制御することができる。   In the above-described embodiment, the signal control parameter is calculated using the lane-specific vehicle-type converted traffic volume of each lane at the downstream end of each inflow path, but the present invention is not limited to this. Although this can more efficiently control the traffic flow, even if the signal control parameter is calculated using the traffic volume by lane that does not consider the type of vehicle, the traffic flow can be efficiently controlled to some extent.

また、上述の実施形態においては、過去の１サイクルにおけるそれぞれの流入路の下流端の各車線の車線別車種換算交通量を算出していたが、これに限定されず、過去のそれぞれの流入路の下流端の各車線の交通量に基づいてこの先１サイクルにおけるそれぞれの流入路の下流端の各車線の交通量を予測し、これに応じた車線別車種換算交通量を算出しても良い。この場合、さらに効率良く交通流を制御することができる。   Moreover, in the above-mentioned embodiment, although the vehicle type conversion traffic volume according to lane of each lane of the downstream end of each inflow path in the past 1 cycle was calculated, it is not limited to this, Each past inflow path The traffic volume of each lane at the downstream end of each inflow path in the next one cycle may be predicted based on the traffic volume of each lane at the downstream end of the vehicle, and the lane-specific vehicle-type converted traffic volume corresponding thereto may be calculated. In this case, the traffic flow can be controlled more efficiently.

また、上述の実施形態においては、阻害交通量を用いて時差現示の要否を判定する構成であったが、これに限られず、第１交通量を第１の流入路の所定の飽和交通流率で除して求めた第１飽和度と、第２交通量を第２の流入路の所定の飽和交通流率で除して求めた第２飽和度とに基づいて（例えば、この２つの値の大小関係やこの２つの値の差分の大きさに応じて）、時差現示の要否を判定する構成であっても良い。   Moreover, in the above-mentioned embodiment, although it was the structure which determines the necessity of a time difference display using an obstruction traffic volume, it is not restricted to this, A 1st traffic volume is the predetermined saturated traffic of a 1st inflow path. Based on the first saturation obtained by dividing by the flow rate and the second saturation obtained by dividing the second traffic by the predetermined saturated traffic flow rate of the second inflow path (for example, 2 It may be configured to determine whether or not the time difference display is necessary depending on the magnitude relationship between two values and the magnitude of the difference between the two values.

また、上述の実施形態においては、阻害交通量を用いて第１時差現示及び第２時差現示を用いるか否かを判定する構成であったが、阻害交通量を用いて第１時差現示のみ（又は第２時差現示のみ）を用いるか否かを判定する構成であっても良い。例えば、第１交通量が常に第２交通量よりも多い交差点では、第２の流入路に対して通行権を与え、第１の流入路に対して通行権を与えない第２時差現示を用いることはないので、第１の流入路に対して通行権を与え、第２の流入路に対して通行権を与えない第１時差現示を用いるか否かのみを判定すれば良い。   Moreover, in the above-described embodiment, it is configured to determine whether to use the first time difference indication and the second time difference indication using the obstructed traffic volume, but the first time difference present using the obstructed traffic amount. It may be configured to determine whether to use only the indication (or only the second time difference indication). For example, at an intersection where the first traffic volume is always greater than the second traffic volume, the second time difference indication is given to the second inflow route without giving the right of traffic to the first inflow route. Since it is not used, it is only necessary to determine whether or not to use the first time difference indication that gives the right of passage to the first inflow path and does not give the right of passage to the second inflow path.

また、上述の実施形態においては、各車線の交通量に基づいて飽和度を算出する構成であったが、これに限られず、交通量に渋滞の台数（例えば、渋滞長を車頭間隔で割って求めた台数）を加え、これに基づいて飽和度を算出する構成であっても良い。このようにして求めた飽和度は負荷率と呼ばれる。   In the above-described embodiment, the saturation is calculated based on the traffic volume of each lane. However, the present invention is not limited to this, and the number of traffic jams (for example, the traffic jam length is divided by the vehicle head interval). A configuration may be adopted in which the saturation is calculated based on this. The saturation obtained in this way is called a load factor.

また、上述の実施形態においては、阻害交通量を用いて時差現示の要否を判定する構成であったが、これに限られず、渋滞長の大小関係に基づいて時差現示の要否を判定する構成であっても良いし、渋滞長の差分の大小関係に基づいて時差現示の要否を判定する構成であっても良い。   Moreover, in the above-described embodiment, the necessity of time difference display is determined using the obstructed traffic volume, but the present invention is not limited to this, and the necessity of time difference display is determined based on the size relationship of the traffic jam length. The structure which determines may be sufficient, and the structure which determines the necessity of a time difference display based on the magnitude relationship of the difference of traffic jam length may be sufficient.

また、上述の実施形態においては、非接触タグに記録されている車両情報を読み取る読取装置を備える車両感知器を用いて車両の種類別に交通量を把握し、車種別車種換算交通量を求めていたが、これに限定されず、カメラを備える画像式車両感知器を用いてこのカメラの監視領域に含まれるそれぞれの車両の種類を判別して車両の種類別に交通量を把握し、車種別車種換算交通量を求めても良い。   Moreover, in the above-mentioned embodiment, the traffic volume is grasped | ascertained according to the kind of vehicle using the vehicle sensor provided with the reader which reads the vehicle information currently recorded on the non-contact tag, and the vehicle type conversion traffic volume for every vehicle type is calculated | required. However, the present invention is not limited to this, and by using an image-type vehicle detector equipped with a camera, the type of each vehicle included in the monitoring area of this camera is determined, and the traffic volume is grasped according to the type of vehicle. You may ask for conversion traffic.

また、上述の実施形態においては、それぞれの流入路の下流端の車線ごとに車両感知器の読取装置を設置して、車線ごとの交通量を計測していたが、これに限定されず、それぞれの流入路の下流端において、全車線にわたって監視領域を設定したカメラを設置し、そのカメラが撮影した画像を解析して車線ごとの交通量を計測しても良い。   Further, in the above-described embodiment, a vehicle detector reader is installed for each lane at the downstream end of each inflow path, and the traffic volume for each lane is measured. At the downstream end of the inflow channel, a camera in which a monitoring area is set over all lanes may be installed, and an image captured by the camera may be analyzed to measure the traffic volume for each lane.

また、上述の実施形態においては、基本現示の後に付加現示を提供する構成になっているが、これに限定されず、基本現示の前に付加現示を提供しても良いし、基本現示の前と後の両方に付加現示を提供しても良い。基本現示の前と後の両方に付加現示を提供する場合、前の付加現示と後の付加現示のそれぞれのスプリットは、例えば、付加現示が１つの場合のスプリットを所定の割合で分割することにより求めることができる。あるいは、スプリットは前の付加現示と後の付加現示とで分けて算出せず、付加現示が１つの場合のスプリットに基づいて付加現示全体の秒数を求め、前の付加現示には所定の秒数を与え、後の付加現示には付加現示全体の秒数から前記所定の秒数を差し引いた秒数を与える、というようにしても良い。特に、車線閉塞による渋滞時には、基本現示の前に付加現示を提供する構成の方が、交通流を効率的に捌くことができる。   In the above-described embodiment, the additional indication is provided after the basic indication. However, the present invention is not limited to this, and the additional indication may be provided before the basic indication. Additional indications may be provided both before and after the base indication. When providing an additional indication both before and after the basic indication, each split of the previous additional indication and the subsequent additional indication is, for example, a predetermined percentage of the split with one additional indication. Can be obtained by dividing by. Alternatively, the split is not calculated separately for the previous additional indication and the subsequent additional indication, but the number of seconds of the entire additional indication is obtained based on the split when there is one additional indication, and the previous additional indication is obtained. May be given a predetermined number of seconds, and the subsequent additional display may be given the number of seconds obtained by subtracting the predetermined number of seconds from the total number of seconds of the additional display. In particular, when there is a traffic jam due to lane blockage, a configuration that provides an additional indication before the basic indication can efficiently spread the traffic flow.

今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。   The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

１ 信号制御装置、１０１ 演算部、１０２ 記憶部、１０３ 受信部、１０４ 送信部
２ 交通信号制御機、３ 信号灯器
４ 車両感知器、４ａ 読取装置、４ｂ 制御装置
５ 非接触タグ、６ 車両、ＩＳ 交差点
ＣＲ１、ＣＲ２、ＣＲ３、ＣＲ４ 横断歩道
ＲＩ１、ＲＩ２、ＲＩ３、ＲＩ４ 流入路
ＲＯ１、ＲＯ２、ＲＯ３、ＲＯ４ 流出路
ＳＴ１、ＳＴ２、ＳＴ３、ＳＴ４ 停止線 DESCRIPTION OF SYMBOLS 1 Signal control apparatus 101 Operation part 102 Storage part 103 Reception part 104 Transmission part 2 Traffic signal controller 3 Signal lamp 4 Vehicle detector 4a Reading device 4b Control device 5 Non-contact tag 6 Vehicle IS Intersections CR1, CR2, CR3, CR4 Crosswalk RI1, RI2, RI3, RI4 Inflow path RO1, RO2, RO3, RO4 Outflow path ST1, ST2, ST3, ST4 Stop line

Claims (7)

複数の流入路を有する交差点に設置された信号灯器を制御する信号制御装置であって、
前記複数の流入路のうちの第１の流入路について、少なくとも直進方向を含む１又は複数の車線の交通量である第１交通量を算出する第１交通量算出手段と、
前記複数の流入路のうちの前記第１の流入路に対向する第２の流入路について、少なくとも直進方向を含む１又は複数の車線の交通量である第２交通量を算出する第２交通量算出手段と、
前記第１交通量と第２交通量とに基づいて、前記第１の流入路に対して通行権を与え、かつ、前記第２の流入路に対して通行権を与えない現示である第１時差現示を用いるか否かを判定する時差現示判定手段と、
前記時差現示判定手段が前記第１時差現示を用いると判定した場合には、その第１時差現示を含む複数の現示を設定し、前記時差現示判定手段が前記第１時差現示を用いないと判定した場合には、その第１時差現示を含まない複数の現示を設定する現示設定手段と、
前記現示設定手段が設定した複数の現示について、前記信号灯器を制御するための信号制御パラメータを算出する信号制御パラメータ算出手段と
を備える信号制御装置。 A signal control device for controlling a signal lamp installed at an intersection having a plurality of inflow paths,
A first traffic volume calculating means for calculating a first traffic volume that is a traffic volume of one or a plurality of lanes including at least a straight direction with respect to a first inflow path of the plurality of inflow paths;
A second traffic volume that calculates a second traffic volume that is a traffic volume of one or more lanes including at least a straight traveling direction with respect to a second inflow path that faces the first inflow path among the plurality of inflow paths. A calculation means;
The present invention provides a right of access to the first inflow path based on the first traffic volume and the second traffic volume, and does not give the right of traffic to the second inflow path. Time difference display determination means for determining whether or not to use one time difference display;
If the time difference indication determining means determines that the first time difference indication is to be used, a plurality of indications including the first time difference indication are set, and the time difference indication determining means sets the first time difference indication. A display setting means for setting a plurality of displays not including the first time difference display when it is determined not to use the display;
A signal control apparatus comprising: a signal control parameter calculation unit that calculates a signal control parameter for controlling the signal lamp for a plurality of displays set by the display setting unit. 前記第１交通量と前記第２交通量の差分である阻害交通量を算出する阻害交通量算出手段を備え、
前記時差現示判定手段は、
前記第１交通量が前記第２交通量よりも大きい場合には、前記阻害交通量に基づいて、前記第１時差現示を用いるか否かを判定し、前記第１交通量が前記第２交通量よりも小さい場合には、前記阻害交通量に基づいて、前記第２の流入路に対して通行権を与え、かつ、前記第１の流入路に対して通行権を与えない現示である第２時差現示を用いるか否かを判定し、
前記現示設定手段は、
前記時差現示判定手段が第１時差現示を用いると判定した場合には、前記第１の流入路の少なくとも直進方向と前記第２の流入路の少なくとも直進方向との双方に通行権を与える現示である相互現示と、前記第１時差現示とを含む複数の現示を設定し、前記時差現示判定手段が第２時差現示を用いると判定した場合には、前記相互現示と、前記第２時差現示とを含む複数の現示を設定する、
請求項１に記載の信号制御装置。 An inhibition traffic volume calculating means for calculating an inhibition traffic volume that is a difference between the first traffic volume and the second traffic volume;
The time difference display determination means is
When the first traffic volume is larger than the second traffic volume, it is determined whether to use the first time difference display based on the obstructed traffic volume, and the first traffic volume is the second traffic volume. If the traffic volume is smaller than the traffic volume, the right of passage is given to the second inflow path and the right of traffic is not given to the first inflow path based on the obstructed traffic volume. Determine whether to use a second time difference indication,
The display setting means includes:
When it is determined that the time difference indication determination means uses the first time difference indication, the right of passage is given to both at least the straight direction of the first inflow path and at least the straight direction of the second inflow path. When a plurality of indications including a mutual indication which is a indication and the first time difference indication are set, and the time difference indication determining means determines that the second time difference indication is used, the mutual indication A plurality of indications including an indication and the second time difference indication;
The signal control apparatus according to claim 1. 前記第１交通量を前記第１の流入路における所定の飽和交通流率で除して第１飽和度を算出する第１飽和度算出手段と、
前記第２交通量を前記第２の流入路における所定の飽和交通流率で除した第２飽和度を算出する第２飽和度算出手段と、
前記第１飽和度と前記第２飽和度の小さい方を、前記相互現示の飽和度である相互現示飽和度として算出する相互現示飽和度算出手段と、
前記第１飽和度と前記第２飽和度の大きい方から、前記相互現示飽和度を減じて、前記第１時差現示又は第２時差現示の飽和度である時差現示飽和度を算出する時差現示飽和度算出手段と
を備え、
前記信号制御パラメータ算出手段は、前記時差現示判定手段が第１時差現示又は第２時差現示を用いると判定した場合には、前記相互現示飽和度と前記時差現示飽和度とに基づいて前記信号制御パラメータを算出する、
請求項２に記載の信号制御装置。 First saturation calculation means for calculating a first saturation by dividing the first traffic volume by a predetermined saturation traffic flow rate in the first inflow path;
Second saturation calculation means for calculating a second saturation obtained by dividing the second traffic volume by a predetermined saturated traffic flow rate in the second inflow path;
A mutual display saturation calculating means for calculating a smaller one of the first saturation and the second saturation as a mutual display saturation which is a saturation of the mutual display;
Subtract the mutual display saturation from the larger one of the first saturation and the second saturation to calculate the time difference display saturation that is the saturation of the first time difference display or the second time difference display. Time difference display saturation calculation means
The signal control parameter calculation means, when the time difference indication determination means determines that the first time difference indication or the second time difference indication is used, the mutual indication saturation and the time difference indication saturation. Calculating the signal control parameter based on:
The signal control apparatus according to claim 2. 前記現示設定手段は、前記第１の流入路の右折方向と前記第２の流入路の右折方向との双方に通行権を与える右折現示をさらに含む複数の現示を設定し、
前記第１交通量が前記第２交通量よりも大きい場合には、前記第１の流入路の右折方向の交通量を、前記第１の流入路における所定の飽和交通流率で除して、前記第１交通量が前記第２交通量よりも小さい場合には、前記第２の流入路の右折方向の交通量を、前記第２の流入路における所定の飽和交通流率で除して、前記第１時差現示又は前記第２時差現示における右折方向の飽和度である時差現示右折方向飽和度を算出する時差現示右折方向飽和度算出手段と、
前記時差現示右折方向飽和度から前記時差現示飽和度を減じて、前記右折現示における飽和度の候補である右折現示第１候補飽和度を算出する右折現示第１候補飽和度算出手段と、
前記第１交通量が前記第２交通量よりも大きい場合には、前記第２の流入路の右折方向の交通量を、前記第２の流入路における所定の飽和交通流率で除して、前記第１交通量が前記第２交通量よりも小さい場合には、前記第１の流入路の右折方向の交通量を、前記第１の流入路における所定の飽和交通流率で除して、前記右折現示における飽和度の候補である右折現示第２飽和度を算出する右折現示第２候補飽和度算出手段と、
前記右折現示第１候補飽和度と前記右折現示第２候補飽和度の大きい方を、前記右折現示の飽和度である右折現示飽和度として算出する右折現示飽和度算出手段と
を備え、
前記信号制御パラメータ算出手段は、前記時差現示判定手段が第１時差現示又は第２時差現示を用いると判定した場合には、さらに右折現示飽和度に基づいて前記信号制御パラメータを算出する、
請求項３に記載の信号制御装置。 The display setting means sets a plurality of displays further including a right turn display that gives a right of passage to both the right turn direction of the first inflow path and the right turn direction of the second inflow path,
When the first traffic volume is larger than the second traffic volume, the traffic volume in the right turn direction of the first inflow path is divided by a predetermined saturated traffic flow rate in the first inflow path, When the first traffic volume is smaller than the second traffic volume, the traffic volume in the right turn direction of the second inflow path is divided by a predetermined saturated traffic flow rate in the second inflow path, A time difference indication right turn direction saturation calculation means for calculating a time difference indication right turn direction saturation that is a degree of right turn direction saturation in the first time difference indication or the second time difference indication;
Right turn indication first candidate saturation calculation for subtracting the time difference indication saturation from the time difference indication right turn direction saturation to calculate a right turn first candidate saturation that is a candidate for saturation in the right turn indication Means,
When the first traffic volume is larger than the second traffic volume, the traffic volume in the right turn direction of the second inflow path is divided by a predetermined saturated traffic flow rate in the second inflow path, When the first traffic volume is smaller than the second traffic volume, the traffic volume in the right turn direction of the first inflow path is divided by a predetermined saturated traffic flow rate in the first inflow path, Right turn indication second candidate saturation calculation means for calculating a right turn indication second saturation that is a candidate for saturation in the right turn indication;
Right-turn indication saturation calculating means for calculating the right-turn indication saturation as the right-turn indication saturation that is the greater of the right-turn indication first candidate saturation and the right-turn indication second candidate saturation Prepared,
The signal control parameter calculation means further calculates the signal control parameter based on the right turn display saturation when the time difference display determination means determines to use the first time difference display or the second time difference display. To
The signal control device according to claim 3. 前記第１交通量が前記第２交通量よりも大きい場合には、前記阻害交通量を前記第１の流入路における所定の飽和交通流率で除して、前記第１交通量が前記第２交通量よりも小さい場合には、前記阻害交通量を前記第２の流入路の飽和交通流率で除して、前記阻害交通量が捌けるのに必要となる阻害交通量通行時間を算出する阻害交通量通行時間算出手段を備え、
前記時差現示判定手段は、前記第１交通量が前記第２交通量よりも大きい場合には、前記第１時差現示における前記第１の流入路の黄時間と前記第１時差現示における前記第１の流入路の赤時間と前記第１時差現示における前記第１の流入路の最小の青時間である時差最小保証青時間との合計と、前記阻害交通量通行時間とに基づいて、前記第１時差現示を用いるか否かを判定し、前記第１交通量が前記第２交通量よりも小さい場合には、前記第２時差現示における前記第２の流入路の黄時間と前記第２時差現示における前記第２流入路の赤時間と前記第２時差現示における前記第２の流入路の時差最小保証青時間との合計と、前記阻害交通量通行時間とに基づいて、前記第２時差現示を用いるか否かを判定する、
請求項２乃至請求項４のいずれか１項に記載の信号制御装置。 When the first traffic volume is larger than the second traffic volume, the obstructed traffic volume is divided by a predetermined saturated traffic flow rate in the first inflow path, and the first traffic volume is calculated as the second traffic volume. In the case where the traffic volume is smaller than the traffic volume, the inhibition traffic volume is divided by the saturated traffic flow rate of the second inflow route, and the inhibition traffic volume traffic time required to make the inhibition traffic volume is calculated. Equipped with traffic traffic time calculation means,
When the first traffic volume is larger than the second traffic volume, the time difference display determining means is configured to display the yellow time of the first inflow path in the first time difference display and the first time difference display. Based on the sum of the red time of the first inflow path and the time difference minimum guaranteed blue time which is the minimum blue time of the first inflow path in the first time difference display, and the obstructed traffic volume traffic time , Whether to use the first time difference display, and when the first traffic volume is smaller than the second traffic volume, the yellow time of the second inflow path in the second time difference display And the sum of the red time of the second inflow path in the second time difference display and the minimum guaranteed blue time of the second inflow path in the second time difference display, and the obstructed traffic passage time To determine whether to use the second time difference indication,
The signal control device according to claim 2. 前記第１交通量と前記第２交通量とに基づいて、交通状態が閑散状態であるか否かを判定する交通状態判定手段を備え、
前記時差現示判定手段は、さらに、前記交通状態判定手段が否と判定した場合に、前記第１時差現示を用いるか否か、あるいは、第２時差現示を用いるか否かを判定する、
請求項２乃至請求項５のいずれか１項に記載の信号制御装置。 Based on the first traffic volume and the second traffic volume, comprising traffic state determination means for determining whether the traffic state is a quiet state,
The time difference display determination means further determines whether to use the first time difference display or whether to use the second time difference display when the traffic state determination means determines NO. ,
The signal control device according to claim 2. コンピュータを、複数の流入路を有する交差点に設置された信号灯器を制御する信号制御装置として機能させるためのコンピュータプログラムであって、
コンピュータを、
前記複数の流入路のうちの第１の流入路について、少なくとも直進方向を含む１又は複数の車線の交通量である第１交通量を算出する第１交通量算出手段、
前記複数の流入路のうちの前記第１の流入路に対向する第２の流入路について、少なくとも直進方向を含む１又は複数の車線の交通量である第２交通量を算出する第２交通量算出手段、
前記第１交通量と第２交通量とに基づいて、前記第１の流入路に対して通行権を与え、かつ、前記第２の流入路に対して通行権を与えない現示である第１時差現示を用いるか否かを判定する時差現示判定手段、
前記時差現示判定手段が前記第１時差現示を用いると判定した場合には、その第１時差現示を含む複数の現示を設定し、前記時差現示判定手段が前記第１時差現示を用いないと判定した場合には、その第１時差現示を含まない複数の現示を設定する現示設定手段、
前記現示設定手段が設定した複数の現示について、前記信号灯器を制御するための信号制御パラメータを算出する信号制御パラメータ算出手段、
として機能させるためのコンピュータプログラム。 A computer program for causing a computer to function as a signal control device for controlling a signal lamp installed at an intersection having a plurality of inflow paths,
Computer
A first traffic volume calculating means for calculating a first traffic volume that is a traffic volume of one or a plurality of lanes including at least a straight traveling direction with respect to a first inflow path of the plurality of inflow paths;
A second traffic volume that calculates a second traffic volume that is a traffic volume of one or more lanes including at least a straight traveling direction with respect to a second inflow path that faces the first inflow path among the plurality of inflow paths. Calculation means,
The present invention provides a right of access to the first inflow path based on the first traffic volume and the second traffic volume, and does not give the right of traffic to the second inflow path. Time difference display determination means for determining whether or not to use one time difference display;
If the time difference indication determining means determines that the first time difference indication is to be used, a plurality of indications including the first time difference indication are set, and the time difference indication determining means sets the first time difference indication. A display setting means for setting a plurality of displays not including the first time difference display when it is determined not to use the display;
Signal control parameter calculation means for calculating a signal control parameter for controlling the signal lamp for a plurality of indications set by the indication setting means,
Computer program to function as.
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