CN110379183A - It is a kind of for alleviating the system and method for crossing traffic congestion - Google Patents
It is a kind of for alleviating the system and method for crossing traffic congestion Download PDFInfo
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- CN110379183A CN110379183A CN201910456524.4A CN201910456524A CN110379183A CN 110379183 A CN110379183 A CN 110379183A CN 201910456524 A CN201910456524 A CN 201910456524A CN 110379183 A CN110379183 A CN 110379183A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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Abstract
The invention discloses a kind of for alleviating the system of crossing traffic congestion, is respectively provided with first-level buffer area, Secondary buffer, buffer area signal lamp, traffic lights, camera in each crossing road；Wherein, it regard the region in the road of crossing within d meters of stop line as first-level buffer area, and all lanes in first-level buffer area are not provided with fixed driving direction；The driving direction of its fixation is respectively set in each lane using the region in addition to first-level buffer area in the road of crossing as Secondary buffer, and in Secondary buffer；Buffer area signal lamp is used to indicate the vehicle driving in Secondary buffer and enters first-level buffer area；The vehicle driving that traffic lights are used to indicate in first-level buffer area passes through crossing；The instruction of buffer area signal lamp in the method for the present invention is to be determined by traffic lights, and the instruction of traffic lights is determined by the monitored vehicle flowrate of camera with virtual coil, is the relationship of linkage between three.
Description
Technical field
It is especially a kind of for alleviating the system of crossing traffic congestion the present invention relates to the control technique field of complex crossing
And method.
Background technique
As the Development of Urban of social economy is increasing, intersection is more and more, and traffic jam issue is got worse,
Usually occur in crossroad, the vehicle congestion in some lane on some direction road is serious, for example through vehicles are obviously more
In left turning vehicle, beacon vehicle forms blocking on Through Lane, and left turn lane is idle or left turning vehicle is obviously extra
Through vehicles.For the vehicle number polarization serious situation of Through Lane and left turn lane, the sky in the sparse lane of vehicle
Between utilization rate it is low, cause crossroad traffic efficiency low.
Time and space contradiction existing for existing crossing road traffic system, causes intersection traffic disorder, current
Low efficiency.
Summary of the invention
In order to overcome above-mentioned defect in the prior art, the present invention provides a kind of is for alleviate crossing traffic congestion
System, by setting first-level buffer area and Secondary buffer, so that the sparse lane lane of vehicle is efficiently utilized, on space angle
Improve the traffic efficiency of vehicle；The vehicle flowrate of each road is monitored, by the way that camera is arranged with real-time monitoring traffic lights pair
In the instruction transit time of each road, and the instruction of buffer area signal lamp is determined by traffic lights, is further adjusted certain and is gathered around
The transit time of straight and turning left on stifled direction, three has connected effect, to improve vehicle in time angle
Traffic efficiency.
To achieve the above object, the present invention uses following technical scheme, comprising:
A kind of for alleviating the system of crossing traffic congestion, crossing includes multiple roads, and each crossing road is equipped with several
A lane；The system is respectively provided with first-level buffer area, Secondary buffer, buffer area signal lamp, traffic letter in each crossing road
Signal lamp；Wherein,
It regard the region within d meters of stop line on several lanes in the road of crossing as first-level buffer area；And
Fixed driving direction is not provided with to all lanes in first-level buffer area；
Using the region in addition to first-level buffer area in the road of crossing as Secondary buffer；I.e. along the side towards crossing
To Secondary buffer is set to the rear in first-level buffer area, and vehicle first passes through Secondary buffer, then by first-level buffer area, most
After pass through crossing；And each lane in Secondary buffer is respectively set the driving direction of its fixation, i.e., it is set in Secondary buffer
There are multiple and different direction lanes；
It is slow that the vehicle driving on some direction lane that buffer area signal lamp is used to indicate in Secondary buffer enters level-one
Area is rushed, and the vehicle driving on direction lane is allowed to enter any lane in first-level buffer area；
Traffic lights are used to indicate all vehicles in first-level buffer area according to direction row indicated by traffic lights
It sails and passes through crossing.
The lane of N number of different directions is equipped in the Secondary buffer；Use AiIndicate direction, i=1,2 ... N；And for
The current sequence of this N number of different directions is followed successively by A1,A2,…AN, i.e. traffic lights are logical for the instruction of this N number of different directions
Row sequence is followed successively by A1,A2,…AN；
The buffer area signal lamp instruction rule, specific as follows shown:
When traffic lights indicate direction A1,A2,…ANWhen being impassabitity, at this point, buffer area signal lamp indicates direction
A1Current, i.e., in instruction Secondary buffer direction A1Vehicle driving on lane enters first-level buffer area；
When traffic lights indicate direction AiPassage remaining time be tiSecond, at this point, buffer area signal lamp indicates direction
Ai+1Current, i.e., in instruction Secondary buffer direction Ai+1Vehicle driving on lane enters first-level buffer area；
Wherein, i=1,2 ... N；And if when i=N, indicating direction A in traffic lightsNPassage remaining time be tN
When the second, then buffer area signal lamp indicates direction A1Current, i.e., in instruction Secondary buffer direction A1Vehicle driving on lane into
Enter first-level buffer area；
And so on, the buffer area signal lamp carries out circulation instruction in the manner described above；
And the vehicle that traveling enters in first-level buffer area passes through road according to the current instruction direction running of traffic lights
Mouthful.
The system also includes the cameras being arranged on road, for monitoring the vehicle flowrate on road；
The traffic lights indicate direction AiPassage total time Ti, it is according to the direction A in Secondary bufferiLane
Vehicle flowrate entire crossing total vehicle flowrate accounting, and according to the direction A in Secondary bufferiThe vehicle flowrate in lane exists
Accounting of total vehicle flowrate of crossing road is adjusted where it.
The present invention also provides a kind of for alleviating the system of crossing traffic congestion, and the crossing is crossroad, each
Crossing road is equipped with left turn lane, Through Lane, right-turn lane；The instruction rule of the traffic lights of each crossing road is
It first keeps straight on and turns left again；
Each crossing road is respectively provided with its corresponding first-level buffer area, Secondary buffer, buffer area signal lamp, traffic signals
Lamp；Wherein,
Using the region within d meters of stop line in the road of crossing on left turn lane and Through Lane as first-level buffer
Area, and left turn lane in first-level buffer area and Through Lane are not provided with fixed driving direction；
Using the region in addition to first-level buffer area in the road of crossing on left turn lane and Through Lane as level 2 buffering
Area；I.e. along the direction towards crossing, Secondary buffer is set to the rear in first-level buffer area, and vehicle first passes through Secondary buffer,
Again by first-level buffer area, finally by crossing；
It is slow that the vehicle driving on some direction lane that buffer area signal lamp is used to indicate in Secondary buffer enters level-one
Area is rushed, and the vehicle driving on direction lane is allowed to enter any lane in first-level buffer area；
Traffic lights are used to indicate all vehicles in first-level buffer area according to direction row indicated by traffic lights
It sails and passes through crossing.
The instruction rule of the buffer area signal lamp of each crossing road, as follows:
When the traffic lights of crossing road show that straight and turning left is impassabitity, at this point, buffer area signal lamp
Instruction straight trip is passed through, i.e., the vehicle driving on the Through Lane in instruction Secondary buffer enters the left-hand rotation vehicle in first-level buffer area
Road and Through Lane；
It is m seconds when the remaining time of the traffic lights display straight trip of crossing road, at this point, signal lamp instruction in buffer area is left
Turn to pass through and keep straight on forbidden, i.e., the vehicle driving on the left turn lane in instruction Secondary buffer enters the left side in first-level buffer area
It changes trains or buses and Through Lane, at the same time, the vehicle on Through Lane in Secondary buffer forbids traveling to enter first-level buffer
Left turn lane and Through Lane in area；
It is n seconds when the remaining time that the traffic lights display of crossing road is turned left, at this point, signal lamp instruction in buffer area is left
Turn forbidden and straight trip is passed through, i.e., the vehicle driving on the Through Lane in instruction Secondary buffer enters the left side in first-level buffer area
It changes trains or buses and Through Lane, at the same time, the vehicle on left turn lane in Secondary buffer forbids traveling to enter first-level buffer
Left turn lane and Through Lane in area；
And so on, the buffer area signal lamp of each crossing road carries out circulation instruction in the manner described above；
And the vehicle that traveling enters in first-level buffer area passes through road according to the current instruction direction running of traffic lights
Mouthful.
The crossroad includes the road of North and South direction and the road of east-west direction；The east-west direction include from east to
West and from west to east direction；The North and South direction includes from south to north and from north to the direction in south；
Camera with virtual coil is set on each road, for monitoring the vehicle flowrate on each road, and is monitored
Vehicle fleet to east-west direction is NumThingAnd the vehicle fleet of North and South direction is NumNorth and south；
The vehicle fleet Num of the east-west directionThingRefer to straight in the Secondary buffer on the crossing road of east-west direction
Vehicle fleet on runway and left turn lane；
The vehicle fleet Num of the North and South directionNorth and southRefer to straight in the Secondary buffer on the crossing road of North and South direction
Vehicle fleet on runway and left turn lane；
If: North and South direction of completion and east-west direction of the crossroad current total time are T, wherein southern and northern
It is T to current total timeNorth and south；East-west direction current total time is TThing；That is T=TNorth and south+TThing；
WhenWhen, then the North and South direction current total time beThe east
West is to current total time
WhenWhen, then the North and South direction current total time beThe east
West is to current total time
WhenOrWhen, then the north and south
Direction current total time isThe east-west direction current total time is
The current total time T of the North and South directionNorth and southIn: the straight trip total time of North and South direction isA left side for North and South direction
Turning total time isAnd
The vehicle fleet Num of the North and South directionNorth and southIn: the left turning vehicle sum of North and South direction, the i.e. crossing of North and South direction
The vehicle fleet on the left turn lane in Secondary buffer on road isThe through vehicles sum of North and South direction, i.e.,
The vehicle fleet on the Through Lane in Secondary buffer on the crossing road of North and South direction isAnd
WhenWhen, then the straight trip total time of the North and South direction beIt is described
The left-hand rotation total time of North and South direction
WhenWhen, then the straight trip total time of the North and South direction beIt is described
The left-hand rotation total time of North and South direction
WhenOrThe then north and south
The straight trip total time in direction isThe left-hand rotation total time of the North and South direction
The current total time T of the east-west directionThingIn: the straight trip total time of east-west direction isA left side for east-west direction
Turning total time isAnd
The vehicle fleet Num of the east-west directionThingIn: the left turning vehicle sum of east-west direction, the i.e. crossing of east-west direction
The vehicle fleet on the left turn lane in Secondary buffer on road isThe through vehicles sum of east-west direction, i.e.,
The vehicle fleet on the Through Lane in Secondary buffer on the crossing road of east-west direction isAnd
WhenWhen, then the straight trip total time of the east-west direction beIt is described
The left-hand rotation total time of east-west direction
WhenWhen, then the straight trip total time of the east-west direction beIt is described
The left-hand rotation total time of east-west direction
WhenOrIt is then described between east and west
To straight trip total time beThe left-hand rotation total time of the east-west direction
M=10~15；N=6~10.
It is required that the region within d meters of stop line on single lane in the road of crossing is the area for accommodating three vehicles
Domain.
First-level buffer zoning in the crossing road is divided into region A and region B；The region A is described close to stop line
Region B is close to Secondary buffer；Single one-lane size in the region B is to accommodate the size of a vehicle；And second level is slow
The vehicle on certain lane in area is rushed when entering first-level buffer area, it is desirable that be first fully parked with region A, then parked region B.
The present invention has the advantages that
(1) present invention increases buffer area in crossing road, and is divided into first-level buffer area and Secondary buffer, first-level buffer
Main space buffer function is played in area, and Secondary buffer is the equal of a buffer pool into before first-level buffer area, for example, needle
To 6 vehicles can be parked in first-level buffer area set by crossroad, compared with the setting of existing crossroad, in the present invention
The setting in first-level buffer area can utilize Through Lane and left turn lane so that when through vehicles or current left turning vehicle simultaneously
Space；When left turning vehicle is seldom, idle left turn lane is efficiently utilized；When through vehicles are seldom, efficiently
Idle Through Lane is utilized；To improve the traffic efficiency of vehicle on space angle.
(2) present invention rushes area's signal lamp by setting buffer area and buffer area signal lamp, and according to traffic lights adjusting
Instruction rule, enable the straight trip on the road of crossing and left turning vehicle is orderly respectively enters in first-level buffer area, improve
Crossroad traffic efficiency reduces time, reduction traffic congestion that vehicle queue waits, improves the safety and trip of urban transportation
Efficiency.
(3) present invention is provided with the camera of virtual coil in crossing road, to monitor the vehicle flowrate of traffic, with
Real-time monitoring traffic lights indicate the transit time of east-west direction and North and South direction, further adjust straight on certain congestion direction
Row and the transit time to turn left, to improve the traffic efficiency of vehicle in time angle.
(4) buffer area signal lamp of the invention can make that driver is more clear it is clear when enter first-level buffer area,
And the instruction of buffer area signal lamp is to be determined by traffic lights, and the instruction of traffic lights rule is by with virtual
The monitored vehicle flowrate of the camera of coil determines, is the relationship of linkage between three.
(5) present invention keeps the utilization rate in space more efficient about the setting of buffer area, while when by real-time monitoring passage
Between and space efficient be combined together, the present invention promotes the traffic efficiency of vehicle from the angle in time and space simultaneously, with
Alleviate the realistic problem of the unidirectional congestion of crossing road.
(6) in the present invention, the first-level buffer zoning in the crossing road is also divided into region A and region B；The region A
Close to stop line, the region B is close to Secondary buffer；Single one-lane size in the region B is to accommodate a vehicle
Size；And the vehicle on certain lane in Secondary buffer is when entering first-level buffer area, it is desirable that first region A is fully parked with, then
Parked region B, to avoid the straight trip occurred caused by being fully parked with due to certain bicycle road in first-level buffer area in Secondary buffer or
The case where left turn lane can not be travelled into first-level buffer area.
Detailed description of the invention
Fig. 1 is the road plane figure of the crossroad in embodiment one.
Fig. 2 is the time dispensing mode of each road in embodiment one.
Fig. 3 is that each road by taking North and South direction is congestion direction as an example in embodiment one turns left and the time of straight trip is deployed
Mode.
1 in Fig. 1 indicates first-level buffer area, and 2 indicate Secondary buffer, and 3 indicate buffer area signal lamp, and 4 indicate traffic letter
Signal lamp, 5 indicate the camera with virtual coil.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Based on existing traffic design, a crossing is provided with the road of multiple directions, and each crossing road is equipped with
The lane of several driving directions, to realize the multidirectional passage at the crossing.
It is a kind of for alleviating the system of crossing traffic congestion, it is slow to be respectively provided with first-level buffer area, second level in each crossing road
Rush area, buffer area signal lamp, traffic lights.Wherein,
It regard the region within d meters of stop line on several lanes in the road of crossing as first-level buffer area；And
Fixed driving direction is not provided with to all lanes in first-level buffer area；
Using the region in addition to first-level buffer area in the road of crossing as Secondary buffer；I.e. along the side towards crossing
To Secondary buffer is set to the rear in first-level buffer area, and vehicle first passes through Secondary buffer, then by first-level buffer area, most
After pass through crossing；And each lane in Secondary buffer is respectively set the driving direction of its fixation, i.e., it is set in Secondary buffer
There are multiple and different direction lanes；
It is slow that the vehicle driving on some direction lane that buffer area signal lamp is used to indicate in Secondary buffer enters level-one
Area is rushed, and the vehicle driving on direction lane is allowed to enter any lane in first-level buffer area；
Traffic lights are used to indicate all vehicles in first-level buffer area according to direction row indicated by traffic lights
It sails and passes through crossing.
The lane of N number of different directions is equipped in the Secondary buffer；Use AiIndicate direction, i=1,2 ... N；And for
The current sequence of this N number of different directions is followed successively by A1,A2,…AN, i.e. traffic lights are logical for the instruction of this N number of different directions
Row sequence is followed successively by A1,A2,…AN；
The buffer area signal lamp instruction rule, specific as follows shown:
When traffic lights indicate direction A1,A2,…ANWhen being impassabitity, at this point, buffer area signal lamp indicates direction
A1Current, i.e., in instruction Secondary buffer direction A1Vehicle driving on lane enters first-level buffer area；
When traffic lights indicate direction AiPassage remaining time be tiSecond, at this point, buffer area signal lamp indicates direction
Ai+1Current, i.e., in instruction Secondary buffer direction Ai+1Vehicle driving on lane enters first-level buffer area；
Wherein, i=1,2 ... N；And if when i=N, indicating direction A in traffic lightsNPassage remaining time be tN
When the second, then buffer area signal lamp indicates direction A1Current, i.e., in instruction Secondary buffer direction A1Vehicle driving on lane into
Enter first-level buffer area；
And so on, the buffer area signal lamp carries out circulation instruction in the manner described above；
And the vehicle that traveling enters in first-level buffer area passes through road according to the current instruction direction running of traffic lights
Mouthful.
The system also includes be arranged to the camera with virtual coil on each road, for monitoring each road
Vehicle flowrate；
The traffic lights indicate direction AiTransit time Ti, it is according to the direction A in Secondary bufferiLane
Accounting of the vehicle flowrate in total vehicle flowrate at entire crossing, and according to the direction A in Secondary bufferiThe vehicle flowrate in lane exists
Accounting where it in total vehicle flowrate of road is adjusted.
In the present invention, the first-level buffer zoning in the crossing road is also divided into region A and region B；The region A is close
Stop line, the region B is close to Secondary buffer；Single one-lane size in the region B is the big of one vehicle of receiving
It is small；And the vehicle on certain lane in Secondary buffer is when entering first-level buffer area, it is desirable that is first fully parked with region A, then parked
Region B, to avoid the straight trip or left-hand rotation occurred caused by being fully parked with due to certain bicycle road in first-level buffer area in Secondary buffer
The case where lane can not be travelled into first-level buffer area.
Embodiment one:
As shown in Figure 1, it provides a kind of for alleviating the system of crossroad access congestion:
The crossroad includes the road of North and South direction and the road of east-west direction；The east-west direction include from east to
West and from west to east direction；The North and South direction includes from south to north and from north to the direction in south；
Each crossing road is equipped with left turn lane, Through Lane, right-turn lane；The traffic lights of each crossing road
Instruction rule be first to keep straight on to turn left again；
First-level buffer area, Secondary buffer, buffer area signal lamp, traffic lights, band are respectively provided in each crossing road
The camera of virtual coil；1 in Fig. 1 indicates first-level buffer area, and 2 indicate Secondary buffer, and 3 indicate buffer area signal lamp, 4 tables
Show traffic lights, 5 indicate the camera with virtual coil；Wherein,
The region within d meters of stop line on left turn lane and Through Lane in the road of crossing is delayed as level-one
Area is rushed, and left turn lane in first-level buffer area and Through Lane are not provided with fixed driving direction.
In the present embodiment one, it is desirable that the region within d meters of stop line on the single lane in the crossing road is equal
For the region for accommodating three vehicles.
Using the region in addition to first-level buffer area in the road of crossing on left turn lane and Through Lane as level 2 buffering
Area, i.e., along the direction towards crossing, Secondary buffer is set to the rear in first-level buffer area, and vehicle first passes through Secondary buffer,
Again by first-level buffer area, finally by crossing.
Buffer area signal lamp is used to indicate on Through Lane or the left turn lane in the Secondary buffer in the road of crossing
Vehicle driving enters first-level buffer area, and the vehicle driving on Through Lane or left turn lane is allowed to enter in first-level buffer area
Any lane.
Traffic lights are used to indicate all vehicles in the first-level buffer area in the road of crossing according to traffic lights
Indicated direction straight trip turns left to pass through crossing.
In the present embodiment one, the first-level buffer zoning in the crossing road is also divided into region A and region B；The region A
Size account for the 2/3 of first-level buffer area size, i.e. two cars can be accommodated in single bicycle road in region A, the region B's is big
The 1/3 of little Zhan first-level buffer area size can accommodate a vehicle in the single bicycle road in i.e. region B；The region A is slow for level-one
Rush 2/3 region within d meters of stop line on left turn lane and Through Lane in area；The region B is first-level buffer
The region in addition to region one on left turn lane and Through Lane in area；And the region A is close to stop line, the region
B is close to Secondary buffer.And the vehicle on certain lane in Secondary buffer is when entering first-level buffer area, it is desirable that first by region
A is fully parked with, then parked region B, to avoid occurring caused by being fully parked with due to certain bicycle road in first-level buffer area in Secondary buffer
Straight trip or left turn lane the case where can not travelling into first-level buffer area.
In the present embodiment one, traffic lights and buffer area signal lamp are arranged on a signal lamp, and the signal lamp
It is shown including four, three are shown as being respectively used to the instruction i.e. finger of traffic lights for turning left on road, keeping straight on, turning right in fact
Show, another is shown as the instruction i.e. instruction of buffer area signal lamp turned left for buffer area signal lamp and kept straight on.
The instruction rule of the buffer area signal lamp of each crossing road, as follows:
When the traffic lights of crossing road show that straight and turning left is impassabitity, at this point, buffer area signal lamp
Instruction straight trip is passed through, i.e., the vehicle driving on the Through Lane in instruction Secondary buffer enters the left-hand rotation vehicle in first-level buffer area
Road and Through Lane；
It is 10 seconds when the remaining time of the traffic lights display straight trip of crossing road, at this point, buffer area signal lamp indicates
Turning left, it is forbidden to pass through and keep straight on, i.e., the vehicle driving on the left turn lane in instruction Secondary buffer enters in first-level buffer area
Left turn lane and Through Lane, at the same time, the vehicle on Through Lane in Secondary buffer forbid traveling slow into level-one
Rush the left turn lane and Through Lane in area；
It is 6 seconds when the remaining time that the traffic lights display of crossing road is turned left, at this point, signal lamp instruction in buffer area is left
Turn forbidden and straight trip is passed through, i.e., the vehicle driving on the Through Lane in instruction Secondary buffer enters the left side in first-level buffer area
It changes trains or buses and Through Lane, at the same time, the vehicle on left turn lane in Secondary buffer forbids traveling to enter first-level buffer
Left turn lane and Through Lane in area；
And so on, the buffer area signal lamp of each crossing road carries out circulation instruction in the manner described above；
And the vehicle that traveling enters in first-level buffer area passes through road according to the current instruction direction running of traffic lights
Mouthful.
It in the present embodiment one, by taking the instruction of the buffer area signal of North and South direction road as an example, is illustrated: in view of north and south
After left turning vehicle on the road of direction passes through, the through vehicles on east-west direction road immediately begin to pass through, so that north and south
The time that through vehicles on the road of direction enter first-level buffer area is relatively long, therefore, keeps straight on North and South direction road
Vehicle only turn left it is current start within last 6 seconds to drive into first-level buffer area, i.e., left turning vehicle is only turning left on North and South direction road
Current last 6 seconds are prohibited to drive into first-level buffer area；And under normal circumstances, the vehicle in 6 Miao Nei first-level buffer areas can be successively
Passage finishes.
Camera with virtual coil is used to monitor the vehicle fleet and left-hand rotation vehicle on the Through Lane in the crossing road
Vehicle fleet on road, and the camera with virtual coil is applied not only to the vehicle fleet to each lane in the road of crossing
It is monitored, is also used to link between traffic lights, and then deploy each lane in each crossing road in real time
Transit time.
As shown in Figure 1, four cameras for having virtual coil are set in North and South direction and east-west direction, to monitor dealing
The vehicle flowrate of vehicle is further adjusted with the transit time of real-time monitoring traffic lights instruction east-west direction and North and South direction
The transit time of straight and turning left on certain congestion direction；Concrete mode is as follows:
It is Num in the vehicle fleet for monitoring east-west directionThingAnd the vehicle fleet of North and South direction is NumNorth and south；It is described
The vehicle fleet Num of east-west directionThingRefer to the Through Lane in the Secondary buffer on the crossing road of east-west direction and left-hand rotation
Vehicle fleet on lane；The vehicle fleet Num of the North and South directionNorth and southRefer to that the second level on the crossing road of North and South direction is slow
Rush the vehicle fleet on Through Lane and left turn lane in area；
As shown in Figure 2, it in the present embodiment one, is passed through with North and South direction of completion and east-west direction of crossroad total
For time T is 180s；Wherein, North and South direction current total time is TNorth and south；East-west direction current total time is TThing；That is T
=TNorth and south+TThing；
WhenWhen, i.e., expression North and South direction is congestion direction, then the North and South direction is passed through
Total time isThe east-west direction current total time is
WhenWhen, i.e., expression east-west direction is congestion direction, then the North and South direction is passed through
Total time isThe east-west direction current total time is
WhenOrWhen, that is, indicate thing
Direction and North and South direction are relatively uniform, then the North and South direction current total time beIt is described between east and west
It is to current total time
As shown in Figure 3, by taking North and South direction is congestion direction as an example, i.e., current with the North and South direction in the present embodiment one
Total time beThe east-west direction current total time isFor；Wherein,
The straight trip total time of North and South direction isThe left-hand rotation total time of North and South direction isAnd
The left turning vehicle sum of the North and South direction, i.e. left-hand rotation in Secondary buffer on the crossing road of North and South direction
Vehicle fleet on lane isThe through vehicles sum of North and South direction, i.e. second level on the crossing road of North and South direction
The vehicle fleet on Through Lane in buffer area is
WhenWhen, then the straight trip total time of the North and South direction beThe left-hand rotation total time of the North and South direction
WhenWhen, then the straight trip total time of the North and South direction beThe left-hand rotation total time of the North and South direction
WhenOrThe then north and south
The straight trip total time in direction isThe left-hand rotation total time of the North and South direction
The straight trip total time of east-west direction isThe left-hand rotation total time of east-west direction isAnd
The vehicle fleet Num of the east-west directionThingIn: the left turning vehicle sum of east-west direction, the i.e. crossing of east-west direction
The vehicle fleet on the left turn lane in Secondary buffer on road isThe through vehicles sum of east-west direction, i.e.,
The vehicle fleet on the Through Lane in Secondary buffer on the crossing road of east-west direction isAnd
WhenWhen, then the straight trip total time of the east-west direction beThe left-hand rotation total time of the east-west direction
WhenWhen, then the straight trip total time of the east-west direction beThe left-hand rotation total time of the east-west direction
WhenOrThe then thing
The straight trip total time in direction isThe left-hand rotation total time of the east-west direction
Verifying explanation is carried out to the efficiency of the control methods of embodiment one:
Time aspect: according to the rule of above-mentioned time-controllable, when east-west direction vehicle is also fewer than north and south vehicle number half,
And North and South direction left turning vehicle number it is also fewer than the half of through vehicles when, control methods in this case can make congestion side
To the transit time of Through Lane increase to 80s from original 45s, the time increases 35s.Similarly, when the straight trip of North and South direction
When vehicle is also fewer than the half of left turning vehicle, the transit time of left turn lane can increase 45s.
Space aspects: first-level buffer area occupies Through Lane and left turn lane distinguishes the space of three vehicles, is equivalent to existing
On the lane design deposited, the space of three vehicles of the less left turn lane of vehicle number is taken full advantage of, the vehicle body by reality
5 meters of length, then the setting in first-level buffer area is used, is equivalent to and transitable lane is increased 15 meters, under normal circumstances, level-one
6 vehicles of buffer area are current to finish needs 6 seconds, it is contemplated that driver is simultaneously unlikely when green light lights while the beginning that starts up the car
It is current, it may appear that delay is then finished by the vehicle pass-through in averagely every 10 seconds first-level buffer areas, while Secondary buffer vehicle is at this
Successively can smoothly enter into first-level buffer area in 10 seconds, be equivalent to averagely every 10 seconds using buffer area can 3 vehicles of multi-pass row, that is, work as utilization
First-level buffer area, every 10 seconds relative to not plus first-level buffer area want 3 vehicles of multi-pass row.
The overall efficiency of traffic volume is analyzed:
The phenomenon that for North and South direction Through Lane congestion, can make following verifying from these three situations
Situation one: east-west direction and North and South direction vehicle are not much different, and the straight and turning left vehicle of North and South direction also differs
Seldom, respectively transit time is equivalent between the non-added-time and deploys existing signal timing, only joined the passage in first-level buffer area
Efficiency is finished by the vehicle pass-through in averagely every 10 seconds first-level buffer areas, at the same Secondary buffer vehicle in this 10 seconds smoothly according to
It is secondary enter first-level buffer area, be equivalent to averagely every 10 seconds using buffer area can 3 vehicles of multi-pass row, increased vehicle flowrate of keeping straight at this time
Are as follows:, i.e., only increase buffer area and is compared with the existing time method of salary distribution, it is contemplated that real delay issue, then it can multi-pass row 13
?.
Situation two: east-west direction and North and South direction transit time are divided equally, and only sacrifice the left-hand rotation time of North and South direction, at this time
It, can 18 vehicles of multi-pass row when Through Lane green light plays end.
Situation three: east-west direction vehicle fleet is less than the half of North and South direction vehicle fleet, the straight trip of North and South direction and a left side
It changes trains or buses to be not much different, only sacrifices east-west direction transit time, increased vehicle flowrate of keeping straight at this time are as follows:, i.e., when Through Lane is green
Lamp lights end, can 18 vehicles of multi-pass row.
Situation four: east-west direction vehicle fleet is less than the half of North and South direction vehicle fleet, and the left-hand rotation vehicle of North and South direction
It is less than the half of through vehicles, increased vehicle flowrate of keeping straight at this time are as follows:, i.e., it, can be more when Through Lane green light plays end
Current 24 vehicles.
In conclusion the present invention concentrates traffic jam of the congestion on a wherein direction suitable for crossroad, lead to
Virtual coil technology is crossed, buffer area and buffer area signal lamp are set, original traffic lights and buffer area signal lamp are adjusted
Time, transformation straight trip or instruction of turning left improve the current effect in crossroad so that straight trip enters in first-level buffer area with left turning vehicle
Rate reduces time, reduction traffic congestion that vehicle queue waits, improves the safety and line efficiency out of urban transportation.
The above is only the preferred embodiments of the invention, are not intended to limit the invention creation, all in the present invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the invention within the spirit and principle of creation
Within the scope of shield.
Claims (10)
1. a kind of for alleviating the system of crossing traffic congestion, crossing includes multiple roads, and each crossing road is equipped with several
Lane；It is characterized in that, the system is respectively provided with first-level buffer area, Secondary buffer, buffer area signal in each crossing road
Lamp, traffic lights；Wherein,
It regard the region within d meters of stop line on several lanes in the road of crossing as first-level buffer area；And to one
All lanes in grade buffer area are not provided with fixed driving direction；
Using the region in addition to first-level buffer area in the road of crossing as Secondary buffer；I.e. along towards crossing direction, two
For grade setting buffers in the rear in first-level buffer area, vehicle first passes through Secondary buffer, then passes through first-level buffer area, finally by
Crossing；And each lane in Secondary buffer is respectively set the driving direction of its fixation, i.e., it is equipped in Secondary buffer multiple
Different directions lane；
The vehicle driving on some direction lane that buffer area signal lamp is used to indicate in Secondary buffer enters first-level buffer area,
And the vehicle driving on direction lane is allowed to enter any lane in first-level buffer area；
It is logical according to direction running indicated by traffic lights that traffic lights are used to indicate all vehicles in first-level buffer area
Cross crossing.
2. according to claim 1 a kind of for alleviating the system of crossing traffic congestion, which is characterized in that
The lane of N number of different directions is equipped in the Secondary buffer；Use AiIndicate direction, i=1,2 ... N；And it is N number of for this
The current sequence of different directions is followed successively by A1,A2,…AN, i.e. traffic lights sequence current for the instruction of this N number of different directions
It is followed successively by A1,A2,…AN；
The buffer area signal lamp instruction rule, specific as follows shown:
When traffic lights indicate direction A1,A2,…ANWhen being impassabitity, at this point, buffer area signal lamp indicates direction A1It is logical
Row, i.e. direction A in instruction Secondary buffer1Vehicle driving on lane enters first-level buffer area；
When traffic lights indicate direction AiPassage remaining time be tiSecond, at this point, buffer area signal lamp indicates direction Ai+1It is logical
Row, i.e. direction A in instruction Secondary bufferi+1Vehicle driving on lane enters first-level buffer area；
Wherein, i=1,2 ... N；And if when i=N, indicating direction A in traffic lightsNPassage remaining time be tNWhen the second,
Then buffer area signal lamp indicates direction A1Current, i.e., in instruction Secondary buffer direction A1Vehicle driving on lane enters one
Grade buffer area；
And so on, the buffer area signal lamp carries out circulation instruction in the manner described above；
And the vehicle that traveling enters in first-level buffer area passes through crossing according to the current instruction direction running of traffic lights.
3. according to claim 2 a kind of for alleviating the system of crossing traffic congestion, which is characterized in that the system is also
Including the camera being arranged on road, for monitoring the vehicle flowrate on road；
The traffic lights indicate direction AiPassage total time Ti, it is according to the direction A in Secondary bufferiThe vehicle in lane
Flow total vehicle flowrate at entire crossing accounting, and according to the direction A in Secondary bufferiThe vehicle flowrate in lane is in its institute
At crossing, the accounting of total vehicle flowrate of road is adjusted.
4. a kind of for alleviating the system of crossing traffic congestion, which is characterized in that the crossing is crossroad, each crossing road
Road is equipped with left turn lane, Through Lane, right-turn lane；The instruction rule of the traffic lights of each crossing road is first to keep straight on
Turn left again；
Each crossing road is respectively provided with its corresponding first-level buffer area, Secondary buffer, buffer area signal lamp, traffic lights；
Wherein,
Using the region within d meters of stop line in the road of crossing on left turn lane and Through Lane as first-level buffer area,
And left turn lane in first-level buffer area and Through Lane are not provided with fixed driving direction；
Using the region in addition to first-level buffer area in the road of crossing on left turn lane and Through Lane as Secondary buffer；I.e.
Along the direction towards crossing, Secondary buffer is set to the rear in first-level buffer area, and vehicle first passes through Secondary buffer, then passes through
First-level buffer area, finally by crossing；
The vehicle driving on some direction lane that buffer area signal lamp is used to indicate in Secondary buffer enters first-level buffer area,
And the vehicle driving on direction lane is allowed to enter any lane in first-level buffer area；
It is logical according to direction running indicated by traffic lights that traffic lights are used to indicate all vehicles in first-level buffer area
Cross crossing.
5. according to claim 4 a kind of for alleviating the system of crossing traffic congestion, which is characterized in that each crossing road
The instruction rule of the buffer area signal lamp on road, as follows:
When the traffic lights of crossing road show that straight and turning left is impassabitity, at this point, buffer area signal lamp indicates
Straight trip is passed through, i.e., the vehicle driving on the Through Lane in instruction Secondary buffer enter left turn lane in first-level buffer area and
Through Lane；
It is m seconds when the remaining time of the traffic lights display straight trip of crossing road, at this point, signal lamp instruction left-hand rotation in buffer area is logical
Row and keep straight on it is forbidden, i.e., instruction Secondary buffer in left turn lane on vehicle driving enter the left-hand rotation vehicle in first-level buffer area
Road and Through Lane, at the same time, the vehicle on Through Lane in Secondary buffer forbid traveling to enter in first-level buffer area
Left turn lane and Through Lane；
It is n seconds when the remaining time that the traffic lights display of crossing road is turned left, at this point, signal lamp instruction in buffer area turns left to prohibit
Row and straight trip passage, i.e. vehicle driving on Through Lane in instruction Secondary buffer enter the left-hand rotation vehicle in first-level buffer area
Road and Through Lane, at the same time, the vehicle on left turn lane in Secondary buffer forbid traveling to enter in first-level buffer area
Left turn lane and Through Lane；
And so on, the buffer area signal lamp of each crossing road carries out circulation instruction in the manner described above；
And the vehicle that traveling enters in first-level buffer area passes through crossing according to the current instruction direction running of traffic lights.
6. according to claim 4 a kind of for alleviating the system of crossing traffic congestion, which is characterized in that the four crossway
Mouth includes the road of North and South direction and the road of east-west direction；The east-west direction includes from the east to the west and from west to the side in east
To；The North and South direction includes from south to north and from north to the direction in south；
Camera with virtual coil is set on each road, for monitoring the vehicle flowrate on each road, and monitors east
West to vehicle fleet be NumThingAnd the vehicle fleet of North and South direction is NumNorth and south；
The vehicle fleet Num of the east-west directionThingRefer to the straight traffic in the Secondary buffer on the crossing road of east-west direction
Vehicle fleet on road and left turn lane；
The vehicle fleet Num of the North and South directionNorth and southRefer to the straight traffic in the Secondary buffer on the crossing road of North and South direction
Vehicle fleet on road and left turn lane；
If: North and South direction of completion and east-west direction of the crossroad current total time are T, wherein North and South direction is logical
Capable total time is TNorth and south；East-west direction current total time is TThing；That is T=TNorth and south+TThing；
WhenWhen, then the North and South direction current total time beIt is described between east and west
It is to current total time
WhenWhen, then the North and South direction current total time beIt is described between east and west
It is to current total time
WhenOrWhen, then the North and South direction
Current total time isThe east-west direction current total time is
7. according to claim 5 a kind of for alleviating the system of crossing traffic congestion, which is characterized in that
The current total time T of the North and South directionNorth and southIn: the straight trip total time of North and South direction isThe left-hand rotation of North and South direction is total
Time isAnd
The vehicle fleet Num of the North and South directionNorth and southIn: the left turning vehicle sum of North and South direction, i.e. the crossing road of North and South direction
On Secondary buffer in left turn lane on vehicle fleet beThe through vehicles sum of North and South direction, i.e. north and south
The vehicle fleet on the Through Lane in Secondary buffer on the crossing road in direction isAnd
WhenWhen, then the straight trip total time of the North and South direction beThe north and south
The left-hand rotation total time in direction
WhenWhen, then the straight trip total time of the North and South direction beThe north and south
The left-hand rotation total time in direction
WhenOrThe then North and South direction
Straight trip total time beThe left-hand rotation total time of the North and South direction
The current total time T of the east-west directionThingIn: the straight trip total time of east-west direction isThe left-hand rotation of east-west direction is total
Time isAnd
The vehicle fleet Num of the east-west directionThingIn: the left turning vehicle sum of east-west direction, i.e. the crossing road of east-west direction
On Secondary buffer in left turn lane on vehicle fleet beThe through vehicles sum of east-west direction, i.e. thing
The vehicle fleet on the Through Lane in Secondary buffer on the crossing road in direction isAnd
WhenWhen, then the straight trip total time of the east-west direction beThe thing
The left-hand rotation total time in direction
WhenWhen, then the straight trip total time of the east-west direction beThe thing
The left-hand rotation total time in direction
WhenOrThe then east-west direction
Straight trip total time beThe left-hand rotation total time of the east-west direction
8. according to claim 5 a kind of for alleviating the system of crossing traffic congestion, which is characterized in that m=10~15；
N=6~10.
9. according to claim 1 or 4 a kind of for alleviating the system of crossing traffic congestion, which is characterized in that it is required that road
The region within d meters of stop line on single lane in mouth road is the region for accommodating three vehicles.
10. according to claim 1 or 4 a kind of for alleviating the system of crossing traffic congestion, which is characterized in that by the road
First-level buffer zoning in mouth road is divided into region A and region B；The region A is close to stop line, and the region B is close to second level
Buffer area；Single one-lane size in the region B is to accommodate the size of a vehicle；And certain lane in Secondary buffer
On vehicle enter first-level buffer area when, it is desirable that first region A is fully parked with, then parked region B.
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| CN111341122A (en) * | 2020-02-17 | 2020-06-26 | 昆明理工大学 | Self-adaptive algorithm for controlling time length of intersection signal lamp |
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| CN111341122A (en) * | 2020-02-17 | 2020-06-26 | 昆明理工大学 | Self-adaptive algorithm for controlling time length of intersection signal lamp |
| CN111341122B (en) * | 2020-02-17 | 2021-12-21 | 昆明理工大学 | Self-adaptive algorithm for controlling time length of intersection signal lamp |
| CN111815969A (en) * | 2020-06-18 | 2020-10-23 | 广东振业优控科技股份有限公司 | Method for setting free turning area based on symmetric phase unbalanced traffic flow intersection |
| CN111815969B (en) * | 2020-06-18 | 2022-03-15 | 广东振业优控科技股份有限公司 | Method for setting free turning area based on symmetric phase unbalanced traffic flow intersection |
| CN113112797A (en) * | 2021-04-09 | 2021-07-13 | 交通运输部公路科学研究所 | Signal lamp intersection scheduling method and system based on vehicle-road cooperation technology |
| CN113112797B (en) * | 2021-04-09 | 2022-01-07 | 交通运输部公路科学研究所 | Signal lamp intersection scheduling method and system based on vehicle-road cooperation technology |
| CN113611140A (en) * | 2021-08-11 | 2021-11-05 | 大连交通大学 | Intersection partition synchronous passing control system and method |
| CN114399914A (en) * | 2022-01-20 | 2022-04-26 | 交通运输部公路科学研究所 | Lane, signal lamp and vehicle combined dispatching method and system with vehicle-road cooperation |
| CN115035730A (en) * | 2022-04-13 | 2022-09-09 | 詹华 | Signal lamp control method for cross road section of upper bridge |
| CN117116063A (en) * | 2023-10-23 | 2023-11-24 | 深圳英飞拓科技股份有限公司 | Method for detecting and adjusting traffic jam |
| CN117116063B (en) * | 2023-10-23 | 2024-02-13 | 深圳英飞拓科技股份有限公司 | Method for detecting and adjusting traffic jam |
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