Method for setting green time of pedestrian crosswalk under signal control

A technology for pedestrian crossing and signal control, which is applied in the control of traffic signals and other directions, can solve problems such as the influence of pedestrians and pedestrian speeds on the actual capacity of pedestrian crossings, and achieve the effect of improving the efficiency of pedestrians and vehicles, avoiding time loss, and improving versatility.

Inactive Publication Date: 2016-06-08
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem that the existing pedestrian crossing time setting method does not consider the influence of the number of pedestrians on the pedestrian speed and the actual capacity of the pedestrian crossing, and provides a method for setting the green light time of pedestrian crossings under the control of crowd signals

Method used

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  • Method for setting green time of pedestrian crosswalk under signal control
  • Method for setting green time of pedestrian crosswalk under signal control
  • Method for setting green time of pedestrian crosswalk under signal control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0157] Under the original road conditions, when the number of pedestrians (pedestrian arrival rate) in the crowd was higher, the implementation process of the present invention is as follows:

[0158] Table 1 shows the original basic parameter values ​​of the road section obtained from the survey

[0159] Section width

pedestrian green time

Yellow Lights and Full Red Hours

Pedestrian arrival rate

40(m)

34(s)

5(s)(3s yellow light)

1 / 3(person / second)

crosswalk width

Pedestrian red light time

cycle time

Pedestrian Direction Ratio

8(m)

97(s)

136(s)

0.5

[0160] 1. Determine the crowd dissipation time t in the crowd crossing time according to the gathering and dissipation characteristics of the pedestrian crowd s

[0161] 1) First calculate the lateral distance between pedestrians in the crowd

[0162] δ=2.2323×(1 / 3×(136-34) / 8) -0.383 =1.283(m)

[0163] 2) Calculate the time when the accumulate...

Embodiment 2

[0194] Under the current road condition condition, when the number of pedestrians (pedestrian arrival rate) in the crowd is low, the implementation process of the present invention is as follows:

[0195] Table 2 shows the basic parameter values ​​of the status quo of the road section obtained from the survey

[0196] Section width

pedestrian green time

Yellow Lights and Full Red Hours

Pedestrian arrival rate

40(m)

34(s)

5(s)(3s yellow light)

1 / 10(person / second)

crosswalk width

Pedestrian red light time

cycle time

Pedestrian Direction Ratio

6(m)

97(s)

136(s)

0.5

[0197] 1. Determine the crowd dissipation time t in the crowd crossing time according to the gathering and dissipation characteristics of the pedestrian crowd s ;

[0198] 1) First calculate the lateral distance between pedestrians in the crowd:

[0199] δ=2.2323×(1 / 10×(136-34) / 6) -0.383 =1.822(m);

[0200] 2) Calculate the time ...

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Abstract

The invention discloses a method for setting the green light time of a pedestrian crosswalk under signal control, aiming at overcoming the problem that the existing pedestrian crossing time determination method does not consider the influence of the number of pedestrians on the pedestrian speed and the actual capacity of the pedestrian crosswalk. In the time setting method, the crowd crossing time is determined by the crowd dissipation time t s , the people in the same direction basically travel through time t 0 Delay time t d Composition, the method steps are as follows: 1. crowd dissipation time t in crowd crossing time s Calculation of: determine the lateral distance δ of pedestrians in the crowd, obtain the number of pedestrians in the crowd accumulated in the cycle and the number of pedestrians in the entire crowd in a cycle; 2. The basic crossing time t of the crowd in the crowd crossing time 0 3. The blocking delay time t of opposite pedestrians in crowd crossing time d Calculation; 4. Comprehensive consideration of crowd dissipation time t s , the crowd basically travels through time t 0 and the blocking delay time of the opposite pedestrian t d Post-optimization to get crowd crossing time T: T=t s +t 0 +t d .

Description

technical field [0001] The invention relates to a method for setting pedestrian crossing time in an urban traffic management system, more precisely, the invention relates to a method for setting green light time for pedestrians in a crosswalk under signal control. Background technique [0002] Pedestrian traffic is an important part of urban traffic system, which has great flexibility and mobility. Research on pedestrian crossing time can improve pedestrian safety and operational efficiency, and can provide a basis for channelization design and signal timing of pedestrian crossings. The key technology is how to determine the reasonable crossing time, so as to realize the optimal control of pedestrian crossing. The present invention is aimed at crowds rather than individual pedestrians, based on the number of pedestrians and fully considering the interaction characteristics between pedestrians in time and space, from three aspects (dissipation time of crowds, basic crossing t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/07
Inventor 宋现敏曲昭伟陶鹏飞李志慧陈永恒杨秋杰刘焕峰曹宁博
Owner JILIN UNIV
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