Intersection signal control scheme evaluation method based on floating car positioning data

Abstract

The invention discloses an intersection signal control scheme evaluation method based on floating car positioning data. The method comprises steps of firstly carrying out the preprocessing of the floating car positioning data of an intersection and upstream and downstream directed road segments in an analysis time period, and obtaining a qualified floating car driving track; generating an intersection steering matrix based on the longitude and latitude of the intersection and the longitude and latitude of the upstream and downstream road sections of the intersection, and determining each phasetrajectory set and the overall trajectory set of the intersection; 3, calculating the parking behavior and delay time when each trajectory passes through the intersection; and finally, fusing the average delay time and the parking rate to realize evaluation of the intersection signal control scheme. The method is based on floating car positioning data, the average delay time and the parking rateare calculated and fused, accurate evaluation of the traffic signal control scheme can be achieved, and a problem that an existing intersection traffic signal control scheme is difficult to evaluate can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a method for evaluating an intersection signal control scheme based on floating vehicle positioning data. Background technique [0002] With the continuous increase of urban car ownership, urban traffic congestion is becoming more and more serious, and good urban traffic control strategies and intersection timing schemes are one of the important means to alleviate urban traffic congestion. Now, more and more cities have begun to pay attention to urban traffic signal control. At the same time, the evaluation of traffic signal control schemes at intersections is becoming more and more important. Delay and parking rate are two very important indicators for measuring intersection traffic signal control schemes. , but it cannot be obtained by fixed detectors at intersections. [0003] At present, taxis and buses in many domestic cities are beginning to be equipped ...

AI Technical Summary

Problems solved by technology

Now, more and more cities have begun to pay attention to urban traffic signal control. At the same time, the evaluation of traffic signal control schemes at intersections is becoming more and more important. Delay and parking rate are two very important indicators for measuring intersection traffic signal control schemes. , but it cannot be obtained by the fixed detector of the intersection

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