Dynamic phase setting method specially for pedestrians at intersection under two-phase signal control

A phase signal, intersection technology, applied in the field of two-phase signal control intersection pedestrian-specific phase dynamic setting field, can solve problems such as increased intersection delay and reduced intersection traffic efficiency and so on.

Active Publication Date: 2019-08-06
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
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Problems solved by technology

But at present, there is no dynamic signal timing scheme for intersections with large fluctuations in real-time traffic. It will lead to increased delays at intersections and reduce the efficiency of intersections

Method used

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  • Dynamic phase setting method specially for pedestrians at intersection under two-phase signal control
  • Dynamic phase setting method specially for pedestrians at intersection under two-phase signal control
  • Dynamic phase setting method specially for pedestrians at intersection under two-phase signal control

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Embodiment Construction

[0094] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described below.

[0095] Such as figure 1 As shown, the present invention proposes a kind of two-phase signal control intersection pedestrian special-purpose phase dynamic setting method, comprises the following steps:

[0096] Step 1: Input the real-time parameters before and after setting the pedestrian-only phase into the system;

[0097] Step 2: Calculate the absolute value Φ of the difference between the per capita flow ratio and the pedestrian flow ratio before setting the pedestrian-only phase through real-time parameters 1 and the difference between the per capita flow ratio and the pedestrian flow ratio after setting the pedestrian-only phase Ф 2 ;

[0098] Step 3: Compare Ф 1 and Ф 2 value to judge whether to insert the pedestrian-only phase;

[0099] Step 4: Repeat steps 1 to 3.

[0100] The ...

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Abstract

The invention relates to a dynamic phase setting method specially for pedestrians at an intersection under two-phase signal control. The flows of pedestrians crossing streets and people in motor vehicles as variables and a pedestrian importance index is added, so that a flow value relationship of the pedestrians crossing streets and people in motor vehicles is considered; and for an intersection having high people flow density and needing high pedestrian street-crossing efficiency, an estimation and grading method of converting pedestrians crossing streets and people in motor vehicles into standard people throughput capacities, thereby providing the theoretical support for setting a special-purpose pedestrian phase determination condition dynamically. In terms of the dynamic model scheme selection, a minimum difference between saturability of the pedestrians and motor vehicles by the pedestrians is used as an optimization target and fairness of the number of pedestrians crossing the intersection and the pedestrian number in the motor vehicles is considered, so that pedestrians crossing streets and people in motor vehicles can cross the intersection fairly.

Description

technical field [0001] The invention relates to the technical field of vehicle-road coordination information, in particular to a method for dynamically setting a special phase for pedestrians at an intersection controlled by a two-phase signal. Background technique [0002] With the rapid development of road traffic construction in our country, roads do not increase or expand, and signal lights play a vital role in traffic control and maintaining traffic order. The traditional two-phase signal control scheme at intersections does not solve the machine-non-machine conflicts at intersections, especially It is the conflict between motor vehicles and pedestrians at the initial and final stages of the green light on the crosswalk. [0003] To solve this problem, there are two main solutions: one is to use motor vehicle signals to control pedestrians at the same time. Some scholars have proposed a plan for pedestrian signal lights to rise early and stop early, and plan to stagger ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/005G08G1/07G08G1/083
CPCG08G1/005G08G1/07G08G1/083
Inventor 王嘉文林诗悦董洁霜刘魏巍姚佼赵靖韩印周溪召
Owner UNIV OF SHANGHAI FOR SCI & TECH
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