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

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 ...

AI Technical Summary

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

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