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

A technology of signal control and pedestrian crossing, which is applied to control traffic signals and other directions, can solve problems such as the impact of the actual traffic capacity of pedestrian crossings without considering the speed of pedestrians and pedestrians, and achieve the effects of improving the operating efficiency of pedestrians and vehicles, improving versatility, and improving safety

Inactive Publication Date: 2014-12-31
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

Method used

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  • Method for setting pedestrian green time of pedestrian crosswalk under signal control
  • Method for setting pedestrian green time of pedestrian crosswalk under signal control
  • Method for setting pedestrian 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)(3 s 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 accumulat...

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)(3 s 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 horizontal distance between pedestrians in the crowd: δ=2.2323×(1 / 10×(136-34) / 6) -0.383 =1.822(m);

[0199] 2) Calculate the time when t...

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Abstract

The invention discloses a method for setting the pedestrian green time of a pedestrian crosswalk under signal control, and aims at solving the problem that the influence of the pedestrian number on the pedestrian speed and the practical passing capability of the pedestrian crosswalk is not considered in the existing pedestrian street crossing time determining method. According to the method for setting the pedestrian green time of the pedestrian crosswalk under signal control, the crowd street crossing time consists of the crowd dispersing time t<s>, the identical-direction crowd basic crossing time t<0> and the opposite-direction pedestrian retardation delay time t<d>. The method comprises the following steps of 1, calculation of the crowd dispersing time t<s> in the crowd street crossing time: the transverse distance delta of pedestrians in the crowd is determined, and the accumulated pedestrian number in the crowd and the pedestrian number in the whole crowd in one period are obtained; 2, calculation of the crowd basic crossing time t<0> in the crowd street crossing time; 3, calculation of the opposite-direction pedestrian retardation delay time t<d> in the crowd street crossing time; and 4, obtaining of the crowd street crossing time T (T= t<s>+ t<0>+ t<d>) through optimization by comprehensively considering the crowd dispersing time t<s>, the crowd basic crossing time t<0> and the opposite-direction pedestrian retardation delay time 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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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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