盐城市不同BRT线路行车速度特性对比分析

Comparison and Analysis on Driving Speed Characteristics of Different BRT Lines in Yancheng City

为研究快速公交系统运行特征与其制约因素之间的内在关系和潜在规律,针对盐城市BRT线路的特点和实际情况,选取盐城市BRT系统比较典型的BRT-1号线和BRT支线1号线两条线路为研究对象,通过手持与车载两用GIS数据采集器和人工辅助数据采集法,采集该线路可全面描述BRT运行特性的车辆运营车速、行程车速和行驶车速的行车速度数据,通过对数据进行数理统计和多元分析处理,从而对其行车速度特性进行对比分析,重点对两线路的站间和全程行车速度进行分析。综合分析表明:站台停靠延误和交叉口延误对快速公交的运营速度影响最大,BRT-1号线平均全程运营车速低于平均全程行驶车速28.3%,BRT支线1号线平均全程运营车速低于平均全程行驶车速27.4%。

In order to study the inner relationship and potential law between the operation characteristics of bus rapid transit system and its constraints,according to the characteristics and actual condition of Yancheng city BRT line,two typical lines of the Yancheng city BRT system BRT-1 and BRT branch line 1 are selected as the research objects.Through the handheld and vehicular GIS data collector and artificial aided data acquisition method,we can collect data of the vehicle operating speed,journey speed and driving speed that fully describe the running characteristics of BRT.Through mathematical statistics and multivariate analysis of data,the driving speed characteristics of the two lines are compared and analyzed.Analyzing focus is on the speed between stations and journey speed.Comprehensive analysis shows that:delay at platform stops and delay at intersections have the greatest impact on the operating speed of the bus rapid transit.The average operating speed of line BRT-1 is 28.3%lower than the average driving speed and the average operating speed of the BRT branch line 1 is 27.4%lower than the average driving speed.