关键词: 信号控制, 人行横道, 信号优化, 延误

Abstract: Signal settings of signalized urban road section crosswalks directly affect pedestrian safety and the vehicle delay of the road section. Based on the characteristics of pedestrians, this paper proposed the relationships between duration of pedestrian phase and the occurrence of pedestrian red light violation behaviors through the analysis of pedestrians and vehicles survey data collected from the road section crosswalk. It established a signal optimization model of the crosswalk, with the vehicle average delay minimization as an object and pedestrian green phase duration as a variable. The algorithm of the model was presented accordingly. Finally, with an empirical study, the paper illustrated that after optimizing the signal with the model, the average vehicle delay was reduced; meanwhile, the duration of pedestrian green phase was extended and the capacity of the crosswalk was improved.

Key words: signal control, road section crosswalk, signal optimization, delay