城市轨道交通车站站台行人交通特性

为了确定城市轨道交通车站站台行人交通特性,以北京市地铁2号线西直门站站台视频资料为基础,观测站台区域行人交通行为,分析行人速度、候车位置分布、密度时空分布特性。分析结果表明：与街道环境相比,站台区域行人自由流速度均值偏高,且站台与楼梯邻接区域行人速度随密度的增大下降较快;车辆到达之前行人候车呈队列形式,车辆到达后呈扇形分布在车门两侧;站台区域行人密度时空分布受轨道交通车辆班次影响,表现出规律性波动变化。

Characteristics of Riders' Behavior at Urban Rail Transit Stations

To study the characteristics of riders at urban rail transit stations,this paper analyzes passengers walking speed,waiting location,and density distribution by time and space through observing passengers’behavior from the videos installed at the Xizhimen station on the subway line 2 in Beijing.The results of the analysis indicate that free-flow speed of passengers inside the rail transit station is higher than that on surface streets,and walking speed reduces rapidly as passenger density increases at the vicinity of a staircase.It was observed that before a train arrives,passengers tends to wait in lines,and after a train reaches the station passengers tends to distribute themselves on both sides of the doors.It is also clear that passenger density distribution on the platform area changes regularly with the arrival and departure of subway train.