A dynamic setting method for pedestrian-specific phases at intersections controlled by two-phase signals

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

Active Publication Date: 2021-10-01
UNIV OF SHANGHAI FOR SCI & TECH
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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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  • A dynamic setting method for pedestrian-specific phases at intersections controlled by two-phase signals
  • A dynamic setting method for pedestrian-specific phases at intersections controlled by two-phase signals
  • A dynamic setting method for pedestrian-specific phases at intersections controlled by two-phase signals

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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

A two-phase signal control intersection pedestrian special phase dynamic setting method, the invention uses the flow of pedestrians and people in motor vehicles crossing the street as a variable, and adds the importance index of pedestrians to consider the flow of pedestrians and people in motor vehicles crossing the street Size relationship, aiming at intersections with dense pedestrian flow and the need to ensure the efficiency of pedestrian crossing, a throughput estimation and rating method that converts both pedestrians and motor vehicles into "standard people" is proposed, which provides a basis for dynamically setting the discrimination conditions for pedestrian-specific phases Theoretical support; in the selection of the dynamic model, the optimization goal is to minimize the saturation difference between pedestrians and motor vehicles (according to pedestrians), and the fairness of the number of pedestrians passing through the intersection and the number of pedestrians in motor vehicles is considered. Ensure that pedestrians and motor vehicles can pass through intersections more equitably.

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 Patents(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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