摘要
随着我国城市居民出行需求的快速增长,城市道路系统中行人与机动车之间的矛盾日益严重。为了有效缓减人机冲突,确保行人安全过街,提高城市道路的通行能力,本文主要从信号控制人行横道处研究行人过街对城市道路通行能力的影响。首先明确行人过街影响区、行人过街影响时间等概念,确定道路通行能力在行人过街影响下的计算公式;结合调查数据,得到过街行人到达率与影响时间的统计关系,建立行人过街对通行能力影响的数学模型;最后针对城市道路的典型路段,进行实例计算与仿真评价,通过对比模型计算值与仿真模拟值,对模型进行有效性验证。
With the rapid development of China＇s urban residents travel demand,the contradiction between pedestrians and motor vehicles is becoming increasingly evident. Currently,the urban road traffic congestion is serious and the traffic accident is happening at a high frequency,thus it has not satisfied the travel needs of security and affects the quality of urban trips. In order to effectively relieve the confliction of people and motor vehicle,to make sure the safety of pedestrians＇ crossing the road and to improve the capacity of urban roads,the influence of pedestrians crossing the roads on the capacity of urban roads in controlled crossing the pedestrian crosswalk was studied. Firstly,it defines some conceptions about the areas affected by crossing people,the time affected by crossing people and so on. Then it confirms the general formula of the road capacity when pedestrians are crossing the road based on three pre-assumptions; combined with the survey data,it can achieve the statistics relation between the arrival rate of crossing pedestrians and the affected time,and then constructs the empirical mathematical model of pedestrian crossing on the capacity impact;. Lastly,as for the typical section of urban roads,it takes the step of case calculation and simulation evaluation. According to contrasting and analyzing the model calculated value and simulated value,the efficiency of the model was validated and improved.
作者
何瑞
郑长江
张小丽
马庚华
杨志明
HE Rui ZHENG Changjiang ZHANG Xiaoli MA Genghua YANG Zhiming(College of Civil Engineering and Transportation, Hohai University, Nanjing 210098, China)
出处
《贵州大学学报（自然科学版）》
2017年第3期91-94,共4页
Journal of Guizhou University:Natural Sciences
基金
国家自然科学基金:生命历程视角下城市居民出行行为模式迁移机理研究(51608171)
关键词
有信号控制
行人过街
道路通行能力
仿真评价
signal control
pedestrian crossing
traffic capacity
the simulation evaluation
