Research on Signal Control of Single Intersection with Timed Petri Net Considering Pedestrian Influence
LU Dan
Abstract：In this paper,a variable phase sequence signal control model considering the influence of pedestrians is estab-lished based on timed Petri net to effectively alleviate the problems of traffic congestion and low vehicle passing efficiency at inter-sections.The timed Petri net is used to describe the pedestrian crossing behavior and the process of conflict with traffic flow,and a rolling optimization algorithm is proposed to decide the signal timing of traffic flow affected by pedestrians under the variable phase sequence.The algorithm combines the information of traffic flow and pedestrians in each signal cycle,carries out rolling optimiza-tion of the system according to the steps of determining the phase sequence first and then the timing.Finally,the best signal control scheme in the next cycle is obtained.By comparing this model with other variable phase sequence model[12]without considering the influence of pedestrians and fixed phase sequence model based on the timed Petri net,it is found that this model can effectively alle-viate traffic congestion and improve the traffic efficiency at intersections.
Keywords：timed Petri netrolling optimization algorithmpedestrian
Publication Date：2024-07-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 2015-2024 )