Urban express road intersection public transit priority signal coordinating and timing method

Abstract

The invention discloses an urban express road intersection public transit priority signal coordinating and timing method which includes the steps: performing dividing and numbering for control areas, and dividing urban express roads under the tidal traffic flow actions into two types of control areas according to a fact that whether intersection downstream roads have bus stops or not; building traffic characteristics data sets; determining initial signal timing schemes comprising initial signal phase structures, initial signal control periods and initial phase green time of intersections; respectively constructing intersection public transit priority signal timing models for the two types of control areas, and calibrating model parameters; determining intersection public transit priority signal timing prioritization schemes, and determining public transit priority green time of the intersections and phase green time of the intersections by the aid of a 'value testing method'; determining an intersection public transit priority signal coordinating and timing scheme. Waiting delay of major traffic flow of the express road at the intersections is greatly reduced, and traffic efficiency is improved.

Description

technical field [0001] The invention relates to a method for coordinating and timing signals, in particular to a method for coordinating and timing bus priority signals at urban expressway intersections under the action of tidal traffic flow, and belongs to the technical field of traffic signal control. Background technique [0002] With the aggravation of urban road traffic congestion, more and more cities have begun to vigorously develop public transport, and increase the transit time of public transport vehicles at arterial intersections to improve the efficiency of the main traffic flow of urban expressways. [0003] However, only a simple combination of bus priority signal timing optimization schemes at each intersection on the expressway cannot improve the traffic effect of the entire expressway, and it is necessary to fully consider the mutual coordination of the signal timing schemes at each intersection. In addition, the bus stops on the expressway will greatly affe...

AI Technical Summary

Problems solved by technology

[0003] However, only a simple combination of bus priority signal timing optimization schemes at each intersection on the expressway cannot improve the traffic effect of the entire expressway, and it is necessary to fully consider the mutual coordination of signal timing schemes at each intersection

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