A kind of intersection signal control method and device for bus priority

Abstract

The invention relates to a bus-priority intersection signal control method, comprising the following steps: acquiring trajectory data of social vehicles in all directions at the intersection, establishing a vehicle arrival rate estimation model based on the trajectory data, and estimating the vehicle arrival rates in all directions at the intersection ; Calculate the average delay time of social vehicles in all directions at the intersection based on the vehicle arrival rate and the steady state theoretical model; estimate the bus delay time of each bus that will pass through the intersection based on the state information of the bus vehicles; The delay time calculates the total delay time, takes the minimum total delay time as the goal, and takes the periodic phase constraints and the green light duration constraints as constraints to solve the bus priority signal control scheme; based on the bus priority signal control scheme, the signal at the intersection is controlled. The present invention performs the signal control of bus priority on the premise of taking into account the traffic demands of social vehicles and public transport vehicles, and is especially suitable for saturated intersections.

Description

technical field [0001] The present invention relates to the technical field of traffic signal control, in particular to a method, device and computer storage medium for a bus-priority intersection signal control. Background technique [0002] With the steady development of my country's economy and the increasing demand for transportation, the phenomenon of urban traffic congestion is becoming more and more serious. The public transportation system is an important means to alleviate traffic congestion, but it is affected by road traffic conditions, frequent delays, and the reliability and efficiency of public transportation services are not satisfactory. The main factors affecting the traffic efficiency of public transport vehicles are traffic congestion and the failure of signal timing to adapt to the current traffic demand at intersections. In order to solve the delay problem and improve the reliability and operation efficiency of the public transport system, it is one of ...

AI Technical Summary

Problems solved by technology

[0006] In view of this, it is necessary to provide a bus priority intersection signal control method, device and computer storage medium to solve the problem that the current bus priority signal control method does not consider the traffic demand of social vehicles, resulting in little effect when applied in saturated intersections. Micro, and even exacerbated the problem of congestion

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