CN103927434A - Human-vehicle conflict real-time analysis method for comprehensive passenger transport hub - Google Patents

Abstract

The invention discloses a human-vehicle conflict real-time analysis method for a comprehensive passenger transport hub. The human-vehicle conflict real-time analysis method includes steps of S1, constructing a human-vehicle conflict real-time analysis index system of the comprehensive passenger transport hub; S2, acquiring real-time comprehensive passenger transport hub vehicle and human flow traffic data of a comprehensive passenger transport hub monitoring and managing system and computing various index values of the index system; S3, determining scoring standards of the index values of the human-vehicle conflict real-time analysis index system of the comprehensive passenger transport hub, and setting grade standards of the human-vehicle conflict of the comprehensive passenger transport hub; S4, computing and analyzing weight values of the index system; S5, analyzing human-vehicle conflict states of the comprehensive passenger transport hub according to the index values and the weight values. The human-vehicle conflict real-time analysis method has the advantages that the human-vehicle conflict states of the comprehensive passenger transport hub are analyzed by the aid of the predicted vehicle and human flow data, and accordingly improvement means can be provided for design layout of the comprehensive passenger transport hub.

Description

A kind of comprehensive passenger transport hub people-Che real-time analysis method that conflicts

Technical field

The present invention relates to field of traffic control, particularly a kind of comprehensive passenger transport hub people-Che real-time analysis method that conflicts.

Background technology

Comprehensive passenger transport hub is the connection facility of various Passenger Traffic Modes, serves as the effect of coordination in various passenger traffic forms, is the important component part of Urban Passenger Transport System, is the important step that connects external passenger traffic and inner passenger traffic.City integrated Passenger Transport Hub flow of the people is large, but has also attracted all kinds of passenger stocks simultaneously, therefore, at comprehensive passenger transport hub, certainly exists people-Che conflict point.Traffic conflict is acknowledged as " accident tendency ", and it can replace casualty data to study road safety to a certain extent ^[1], but at present, in the city integrated Passenger Transport Hub management of China and safe countermeasured to bring inflation under control, lack corresponding method people-Che conflict situation and degree carried out to science, quantitatively and real-time analyzer and the method for system.

Prior art is a people's stream mode for comprehensive passenger transport hub all, rather than for hinge insider-Che conflict situation, cannot carry out real-time analysis to people-Che conflict situation of comprehensive passenger transport hub.

Summary of the invention

In order to overcome shortcoming that prior art exists with not enough, the invention provides a kind of comprehensive passenger transport hub people-Che real-time analysis method that conflicts.

The present invention adopts following technical scheme:

Comprehensive passenger transport hub people-Che real-time analysis method that conflicts, comprises the steps:

S1 builds comprehensive passenger transport hub people-Che conflict real-time analysis index system;

Index system is by infrastructure V ₁, service level V ₂affect V with conflict ₃three aspects: index constitutes, wherein infrastructure V ₁comprise people's car separation rate U ₁, guide and to improve rate U ₂; Service level V ₂specifically comprise two indexs: vehicle mean delay U ₃, pedestrian's mean delay U ₄; Conflict affects V ₃specifically comprise two indexs: conflict point density U ₅, conflict contributive rate U ₆.

Each index definition and computing method are as follows:

(1) people's car separation rate U ₁

This index characterizes people's car separation degree, adopts its overall evaluation mark and needs the total ratio of split point to represent:

$U_1=\frac{\mathrm{\Σ}{A}_i}{N_1}---\left(1\right)$

Wherein: A _iseparation degree evaluation score for i place in Passenger Transport Hub, is specifically divided into:

A _i=-1, people's car does not carry out separation and causes disorderly, and motor vehicle and pedestrian cannot pass through smoothly.

A _i=0, with sign indication, carry out the separation of people's car.

A _i=1, by physical isolation, carry out the separation of people's car.

N ₁in this section, for making people's car not interfere with each other the sum of the number of required burble point.

(2) guide and improve rate U ₂

This index with the overall evaluation mark of fingerpost with should have the ratio of conventional number to represent:

$U_2=\frac{\mathrm{\Σ}{B}_i}{N_2}---\left(2\right)$

Wherein: B _ibe the fingerpost evaluation score in i place, be specifically divided into:

b i=-1	fingerpost is wrong, and motor vehicle or pedestrian have been formed to misleading.
		b i=0	not establishing fingerpost cannot pass through motor vehicle or pedestrian smoothly.
b i=0.5	fingerpost imperfection, can not arrive the effect of expecting traffic dispersion, management.
		b i=1	fingerpost has well played traffic guidance, dredging managerial role.

N ₂in this section, for playing the sum of the due fingerpost of traffic guidance dredging effect.

(3) vehicle mean delay U ₃

The mean value that this index is incured loss through delay Vehicle Driving Cycle with reflection conflict point:

$U_3=\frac{{\mathrm{\Σ}}_{i=1}^n{Q}_i\·(t_1-t_0)}{{\mathrm{\Σ}}_{i=1}^n{Q}_i}---\left(3\right)$

In formula: Q _irepresent by i conflict point vehicle flowrate; t ₁for the running time of vehicle after being incured loss through delay, t ₀the running time of not incured loss through delay for vehicle.

(4) pedestrian's mean delay U ₄

The mean value that this index adopts reflection conflict point to incur loss through delay pedestrian's stroke:

$U_4=\frac{{\mathrm{\Σ}}_{i=1}^n{Q}_i^{\′}\·(t_1^{\′}-t_0^{\′})}{{\mathrm{\Σ}}_{i=1}^n{Q}_i^{\′}}---\left(4\right)$

Wherein: Q _i' represent by i conflict point pedestrian flow; t ₁' be the journey time of pedestrian after being incured loss through delay, t ₀' journey time do not incured loss through delay for pedestrian, n is conflict point sum in junction.

(5) conflict point density U ₅

This index refer to Urban Integrated Transport Hub Zhong Ren the conflict point sum of car conflict and the ratio of hinge operation area:

$U_5=\frac{N_3}{S}---\left(5\right)$

Wherein: N ₃for conflict point number; S is the comprehensive passenger transport hub research total area (hinge operation area).

(6) conflict contributive rate U ₆

This index is expected to represent by be subject to the conflicting weighting of number of times of each path pedestrian in hinge:

$U_6=\frac{\mathrm{\Σ}(Q_i\·C_i)}{\mathrm{\Σ}{Q}_i}---\left(6\right)$

Wherein: Qi is the flow of pedestrian path i; Ci is the conflict point number of pedestrian path i.

S2 obtains real time comprehensive Passenger Transport Hub wagon flow and stream of people's traffic data of comprehensive passenger transport hub monitoring management system, each desired value in parameter system;

S3 determines the standards of grading of comprehensive passenger transport hub people-Che conflict real-time analysis index system desired value, the people-Che that the formulates comprehensive passenger transport hub classification standard of conflicting;

Adopt sample statistics distribution to determine standards of grading, sample can be chosen a plurality of comprehensive hinges in different cities, is generally that the historical data statistics of 10 left and right obtains, and sample number is greater than 30, and is 5 multiple.Standards of grading are 5 minutes, and concrete standards of grading are as follows:

First sample value is arranged to (index having is to be the bigger the better, and what have is contrary) by order of quality, 1/5 of optimum is decided to be the scoring scope of 5 minutes; 1/5 of suboptimum belongs to the scoring scope of 4 minutes, by that analogy, obtains the standards of grading of each desired value.

Formulate comprehensive passenger transport hub people-Che conflict situation classification standard, be divided into " A, B, C, D, E " five grades.

A level service level:

People-Che conflict point is few, and people-Che conflict impact is little, pedestrian can walk on freedom and security ground, and driving vehicle is not subject to or is not substantially subject to the hinge expert stream of people's impact, the delay of pedestrian and vehicle is few, and the comfortable convenience degree providing for the passenger flow in comprehensive passenger transport hub and vehicle is high.

B level service level:

Along with increasing of people-Che conflict point, and people-Che conflict affect increasing of pedestrian's stream and vehicle, and pedestrian is subject to the interference of driving vehicle in junction, speed decline.To under B level in limited time, between pedestrian and vehicle, there is phase mutual interference, pedestrian and vehicle all start to occur incuring loss through delay, the comfortable convenience degree providing for the passenger flow in comprehensive passenger transport hub and vehicle declines.

C level service level:

The degree of freedom of junction one skilled in the art and vehicle is very limited, and the interference of junction one skilled in the art and vehicle is larger, and the delay of pedestrian and wagon flow continues to increase, no matter pedestrian or vehicle, and flow slightly increases and just there will be queuing phenomena.

D level service level:

People in junction-Che conflict is quite serious, and pedestrian's traveling speed and Vehicle Speed are all lower, and vehicle and pedestrian's degree of freedom is few, is comfortablely on duty mutually with comfort level, and the delay of pedestrian and vehicle is larger.People-Che conflict point often causes the obstruction of queuing up, and pedestrains safety is poor.

E level service level:

People in junction-Che conflict is very serious, and pedestrian's traveling speed and Vehicle Speed all drop to very low, and comfortable very poor with comfort level, the delay of pedestrian and vehicle is very large, even occurs that people-Che robs capable phenomenon, and pedestrains safety is very poor.

S4 calculates the weighted value of described analysis indexes system;

Utilize analytical hierarchy process to calculate the weighted value of assessment indicator system, first according to index system Judgement Matricies, its process can be undertaken by artificial judgment, then according to analytical hierarchy process, obtains its maximum characteristic root respectively, is weight w ₁, w ₂, w ₃, w ₄, w ₅, w ₆and f ₁, f ₂, f ₃.

S5 calculates each desired value in comprehensive passenger transport hub people-Che conflict real-time analysis index system, and carries out the analysis of comprehensive passenger transport hub people-Che conflict situation according to described weighted value;

First calculate hinge people-Che conflict comprehensive grading C:

C=(U ₁w ₁+U ₂w ₂)×f ₁+(U ₃w ₃+U ₄w ₄)×f ₂+(U ₅w ₅+U ₆w ₆)×f ₃ (7)

Wherein, U ₁, U ₂, U ₃, U ₄, U ₅, U ₆be respectively index score value, span is [0,5]; w ₁, w ₂, w ₃, w ₄, w ₅, w ₆, and f ₁, f ₂, f ₃be respectively weighted value, span is (0,1).

According to comprehensive passenger transport hub people-Che conflict situation grading standard, when 1>C >=0 is E level, 2>C >=1 is D level, and 3>C >=2 are C level, 4>C >=3 are B level, and C >=4 are divided into A level.

Beneficial effect of the present invention:

The present invention can be arranged on comprehensive passenger transport hub monitoring management system, as an application subsystem, the wagon flow, the people's flow data that utilize monitoring management system to gather, China's comprehensive passenger transport hub people-Che conflict situation is carried out to real-time analysis assessment, and carry out accordingly in time specific aim improvement, reduce people-Che conflict, improve security, so the present invention has very large actual promotional value.

In addition, the present invention can also be applied in the comprehensive passenger transport hub of planning, adopts the wagon flow of prediction, people-Che conflict situation analysis that people's flow data carries out comprehensive passenger transport hub, for the layout of comprehensive passenger transport hub provides improvement means.

Accompanying drawing explanation

Fig. 1 is workflow diagram of the present invention;

Fig. 2 is the schematic flow sheet that the present invention calculates weight;

Fig. 3 is the index system block diagram of one embodiment of the present of invention.

Embodiment

Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.

Embodiment

The present embodiment is by Guangzhou Milky Way comprehensive passenger transport hub is tested, and concrete comprehensive passenger transport hub people-Che real-time analysis method that conflicts, comprises the steps: as shown in Figure 1

Build comprehensive passenger transport hub people-Che conflict real-time analysis index system;

Obtain data, each desired value in parameter system, specific targets are as shown in Figure 3;

Determine the standards of grading of comprehensive passenger transport hub people-Che conflict real-time analysis index system desired value, the people-Che that the formulates comprehensive passenger transport hub classification standard of conflicting;

Described standards of grading adopt the sample statistics method of fractional steps to obtain.

The standards of grading of the present embodiment are as follows:

Development of judgment matrix A1, A2, A3, be respectively used to judge index people car separation rate U ₁, guide and to improve rate U ₂, vehicle mean delay U ₃, pedestrian's mean delay U ₄, conflict point density U ₅, conflict contributive rate U ₆relative importance, also have B, for judgement basis facility V ₁, service level V ₂affect V with conflict ₃the relative importance of three aspects: index,

The present embodiment judgment matrix A1, A2, A3 and B are as follows:

A1 judgment matrix

Judgment matrix A1	People's car separation rate U 1	Rate U is improved in guide 2
			People's car separation rate U 1	1	3
Rate U is improved in guide 2	1/3	1

A2 judgment matrix

Judgment matrix A2	Vehicle mean delay U 3	Pedestrian's mean delay U 4
			Vehicle mean delay U 3	1	1/3
Pedestrian's mean delay U 4	3	1

A3 judgment matrix

Judgment matrix A3	Conflict point density U 5	Conflict contributive rate U 6
			Conflict point density U 5	1	5
Conflict contributive rate U 6	1/5	1

B judgment matrix

Judgment matrix B	Infrastructure V 1	Service level V 2	Conflict affects V 3
				Infrastructure V 1	1	1/3	1/5
Service level V 2	3	1	1/3

Conflict affects V 3

5

3

1

Then after judgment matrix A1, A2, A3 and B being carried out comprehensively, obtain final judgment matrix, A1 ', A2 ', A3 ' and B ', then obtain weighted value w by calculating the proper vector of A1 ' ₁, w ₂; The proper vector of calculating A2 ' obtains weighted value w ₃, w ₄; The proper vector of calculating A1 ' obtains weighted value w ₅, w ₆;

As shown in Figure 2, weighted value w in the present embodiment for example ₁, w ₂be calculated as follows:

(1) judgment matrix A row normalization

$A=\left[\begin{array}{cc}1& 3\\ 1/3& 1\end{array}\right]\→\left[\begin{array}{cc}0.75& 0.75\\ 0.25& 0.25\end{array}\right]$

(2) row of judgment matrix A ' is added;

$\left[\begin{array}{cc}0.75& 0.75\\ 0.25& 0.25\end{array}\right]\→M=\left[\begin{array}{c}1.5\\ 0.5\end{array}\right]$

(3) M is normalized;

$M=\left[\begin{array}{c}1.5\\ 0.5\end{array}\right]\→\left[\begin{array}{c}{w}_1\\ w_2\end{array}\right]=\left[\begin{array}{c}0.75\\ 0.25\end{array}\right]$

Similar with said method, then obtain weighted value f by calculating the proper vector of B ' ₁, f ₂, f ₃.

In embodiment, weighted value result of calculation is as shown in the table:

Weight	w 1	w 2	w 3	w 4	w 5	w 6	f 1	f 2	f 3
										Numerical value	0.75	0.25	0.25	0.75	0.17	0.83	0.11	0.26	0.63

Finally according to weighted value, each desired value of described assessment indicator system is carried out to comprehensive evaluation, first calculates hinge people-Che conflict comprehensive grading C:

C=(U ₁w ₁+U ₂w ₂)*f ₁+(U ₃w ₃+U ₄w ₄)*f ₂+(U ₅w ₅+U ₆w ₆)*f ₃=2.94

According to comprehensive passenger transport hub people-Che conflict situation grading standard, people-Che conflict situation comprehensive grading C of Milky Way passenger station is 2.94, in C level, approaches B level state, and people-Che contention situation is poor, need to improve.

Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.

Claims (5)

1. comprehensive passenger transport hub people-Che real-time analysis method that conflicts, is characterized in that, comprises the steps:

S1 builds comprehensive passenger transport hub people-Che conflict real-time analysis index system;

S2 obtains real time comprehensive Passenger Transport Hub wagon flow and stream of people's traffic data of comprehensive passenger transport hub monitoring management system, each desired value in parameter system;

S3 determines the standards of grading of comprehensive passenger transport hub people-Che conflict real-time analysis index system desired value, the people-Che that the formulates comprehensive passenger transport hub classification standard of conflicting;

The weighted value of S4 computational analysis index system;

S5 carries out the analysis of comprehensive passenger transport hub people-Che conflict situation according to desired value and weighted value.

2. a kind of comprehensive passenger transport hub people-Che according to claim 1 real-time analysis method that conflicts, is characterized in that, described Passenger Transport Hub people-Che conflict real-time analysis index system is by infrastructure V ₁, service level V ₂affect V with conflict ₃three aspects: index constitutes.

3. a kind of comprehensive passenger transport hub people-Che according to claim 1 real-time analysis method that conflicts, is characterized in that, determines that the standards of grading of comprehensive passenger transport hub people-Che conflict real-time analysis index system desired value specifically adopt the sample statistics method of fractional steps to obtain.

4. analytical approach according to claim 1, is characterized in that, the weighted value of described analysis indexes system adopts analytical hierarchy process to obtain.

5. analytical approach according to claim 1, it is characterized in that, described S5 carries out comprehensive passenger transport hub people-Che conflict analysis and is specially: calculate hinge people-Che conflict comprehensive grading C, when 1>C >=0 is E level, 2>C >=1 is D level, 3>C >=2 are C level, and 4>C >=3 are B level, and C >=4 are divided into A level.