摘要
为提高城乡结合部无信号交叉口行人过街的安全性,在实测数据的基础上,利用生存理论模型建立这种特殊点段行人过街时间的生存公式,通过寿命表法分析行人过街时间的特征,并利用Cox比例风险模型对影响行人过街时间的因素进行回归分析。研究结果表明,一般情况下,城乡结合部无信号交叉口行人过街时间服从正态分布,最大过街时间大致为50 s,小于城区内无信号和有信号交叉口行人过街时间;过街人流量、冲突车辆数和道路宽度是直接影响行人过街时间的重要因素。
To improve pedestrians＇ traffic safety at intersections with no signals in urban fringe areas,according to the survival theory model,this thesis established a survival formula of pedestrians＇ crossing time on specific road sections based on testing data. Also it did a regression analysis of factors affecting pedestrians＇ crossing time by using the Cox proportional hazards model. The research showed that pedestrians ＇crossing times at intersections with no signals in urban fringe areas generally obey normal distribution with a maximum time of roughly 50 seconds which is shorter than its counterpart at intersections in urban areas with and without signals. According to the research,pedestrians flow,number of conflicted cars and width of road are the main factors affecting directly pedestrians＇ crossing time.
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2015年第6期136-141,共6页
China Safety Science Journal
基金
国家科技支撑计划(2014BAG01B06)
关键词
城乡结合部
无信号交叉口
生存理论模型
过街时间特征
影响因素分析
rural-urban fringe zone
non-signalized intersections
survival theory model
time characteristics of crossing the street
influencing factors analysis
