路段行人过街设施安全性分析

Safety Analysis of Pedestrian Street Crossing Facilities

当前由于行人过街设施选型不合理导致交通事故频发。首先揭示了在路段孤立设置人行横道的局限与风险。基于国内外相关研究和实践,针对几种过街设施对行人安全性和过街服务水平的影响展开讨论,结果显示:一般情况下,路面增设设施(如人行道路缘展宽、行人安全岛)能够帮助行人安全过街,提高行人过街服务水平,但没有为行人提供优先权;提供配套设施(如凸起斑马线、行人过街信号灯)对提高行人安全性效果最好,但是会增加机动车的延误;如果设置立体过街设施,应充分考虑人性化设计且限制违章过街。

Arbitrary selection of the pedestrian crossing facilities has caused frequent traffic accidents. This paper first reveals the limitations and risks of setting isolated pedestrian crossings in road sections, and then discusses the impacts of several pedestrian crossing facilities on safety and level of service based on relevant research and practice. Results show that additional pavement facilities such as mid-block curb extension and pedestrian refuge islands can help the pedestrians cross the street safely, improve the level of service, but cannot provide priority for pedestrians; while supplemental facilities such as raised crosswalk and pedestrian crossing lights can best enhance the safety of pedestrians, but it may also increase the vehicular delay. If overpass pedestrian crossing facilities are set, it is critical to consider pedestrian friendly design and illegal crossings.