The invention discloses an intersection signal timing method based on pedestrian crossing demands. The method comprises the following steps: carrying out parameter adjustment on a Webster model; phase and phase sequence optimization: phase and phase sequence adjustment is carried out on the intersection with the pedestrian oblique crossing requirement, so that the pedestrians continuously cross the street, and the average delay of oblique crossing pedestrians is reduced; optimizing targets: assuming that the departure place of the pedestrian is O and the destination is D; o is equal to {L1, L2, L3 and L4}, D is equal to {L3, L4, L1 and L2}, and an optimization objective function P of pedestrian delay is defined as # imgabs0 #; according to the method, the signal period duration can be determined according to the size relation between the green light time required by crossing of pedestrians at each phase and the key traffic flow passing time, and then the phase sequence is determined according to the actual passing demand of the oblique crossing pedestrians, so that the formulation of the intersection signal timing scheme is completed, and the passing benefit of the pedestrians at the intersection is improved.
本发明公开了一种基于行人过街需求的交叉口信号配时方法,包括以下步骤:对韦伯斯特模型进行参数调整;相位相序优化:对具有行人斜穿需求的交叉口进行相位相序调整,使得行人连续过街,减少斜穿行人的平均延误;优化目标:假设行人出发地为O,目的地为D;O={L1,L2,L3,L4},D={L3,L4,L1,L2},定义行人延误的优化目标函数P为:#imgabs0#;本发明能先根据各相位行人过街所需绿灯时间与关键车流通行时间的大小关系确定信号周期时长,再根据斜穿行人的实际通行需求确定相位相序,进而完成交叉口信号配时方案的制定,从而提升交叉口行人的通行效益。
Intersection signal timing method based on pedestrian crossing demand
基于行人过街需求的交叉口信号配时方法
2025-02-18
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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