基于行人过街特性的人行横道信号优化

Optimization of Pedestrian Crossing Signal Light Facilities Based on the Study of Pedestrian Crossing Characteristics

摘要: 为了解决行人在通过人行横道时，由于到达时间不同而引起的剩余绿灯时长不足的问题，对人行横道信号进行优化。通过对南京市的多个信号控制交叉口进行实地问卷调查、过街行人调查以及现有文献查阅和数据整理，系统地分析了不同的人行横道长度和不同的年龄段对行人过街时步速的影响。研究表明：行人过街步速与人行横道长度正相关，且心理预估步速显著高于实际步速。根据以上特征，建立行人过街模型，进而对行人过街信号提出优化方案。

Abstract: In order to solve the problem of insufficient remaining green light time due to different arrival times when pedestrians pass the crosswalk, the crosswalk signal is optimized. Through on-the-spot questionnaire surveys, pedestrian surveys on pedestrians crossing the street, as well as existing literature review and data sorting at multiple signal-controlled intersections in Nanjing, the influence of different crosswalk lengths and different age groups on pedestrian crossing speed was systematically analyzed. Research shows that pedestrian crossing pace is positively correlated with the length of the crosswalk, and the psychologically estimated pace is significantly higher than the actual pace. Based on the above characteristics, a pedestrian crossing model is established, and then an optimized plan for pedestrian crossing signals is proposed.