关键词: 城市交通, 交叉口信号配时, 多目标优化模型, 行人违章, 延误, 通行能力

Abstract: In the signal control intersections with large vehicle flow and pedestrian flow, pedestrian road right is usually low such that pedestrians tends to run the red light, which considerably reduces the efficiency of intersection operation. In order to effectively solve this problem, the paper presents a multi-objective signal timing optimization model with vehicle delay, pedestrian delay and traffic capacity as the optimization objectives. Furthermore, saturation degree is taken as restrictions and the impact of pedestrian violation on the vehicle delay is also taken into account. The genetic algorithm is proposed to solve the model. Numerical example results indicate that the model can improve the intersection comprehensive benefit.

Key words: urban traffic, intersection signal timing, multi-objective optimization model, pedestrian violation, delay, traffic capacity