Signal coordination optimization control method for pedestrian secondary crossing intersection

Abstract

The invention discloses a signal coordination optimization control method for a pedestrian secondary crossing intersection, and the method comprises the steps: obtaining the traffic arrival rate of each lane and a pedestrian crossing in real time as data input, and carrying out the real-time monitoring and optimization of the efficiency state of the secondary crossing intersection according to the real-time demands. The specific control optimization steps comprise: 1) generating a signal scheme set of pedestrian secondary crossing non-conflict signal phases, 2) determining a pedestrian secondary crossing optimal phase sequence signal scheme, and 3) coordinating and optimizing signal scheme parameters to obtain optimal signal scheme control parameters and issue an instruction to a signal machine. According to the invention, an optimized signal scheme is obtained, real-time online monitoring and optimization are carried out, and the safety of the pedestrian secondary crossing signal intersection is ensured.

Description

technical field [0001] The invention relates to the field of traffic management and control, in particular to a signal coordination and optimization control method for secondary crossings of pedestrians. Background technique [0002] The unique characteristic of my country's traffic flow across the street is mixed traffic flow across the street, including pedestrian slow traffic crossing the street is also a crucial part. The rapid growth of urban motorized travel has further exacerbated traffic problems such as traffic congestion, road traffic safety, traffic energy consumption, and traffic environmental pollution. On the contrary, slow traffic has the advantages of environmental protection and good health, and has become the current mode of transportation. The efficiency of pedestrian crossing often affects the efficiency of the entire traffic flow. The improvement of pedestrian crossing efficiency is necessary for the implementation of the "slow traffic priority" policy. ...

AI Technical Summary

Problems solved by technology

Traditional intersection organization and control methods often weaken or even ignore pedestrian indicators, resulting in large delays for pedestrians to cross the street again, which in turn leads to organizational confusion and random running of red lights, which further interferes with the normal operation of motor vehicles and reduces the operational efficiency of the entire intersection.

The control optimization of the secondary crossing signal at the existing intersection takes the vehicle delay as the optimization goal, and determines the parameters of the green light duration, so it is not possible to fine-tune the optimization of the secondary crossing signal intersection

Images