快速路基本路段车头时距分布特征研究  

Distribution Characteristics of Headway at Basic Expressway Sections

作　　者：陈雷进 彭庆艳 

机构地区：[1]上海市城市建设设计研究院,上海200125

出　　处：《交通信息与安全》2011年第3期33-35,共3页Journal of Transport Information and Safety

摘　　要：为揭示快速路基本路段不同车道上车辆的运行规律,选择上海典型快速路基本路段为研究对象,运用数理统计的方法对采集的代表性快速路基本路段中车头时距数据进行分车道的统计分析,拟合分析及χ2检验。分析结果表明在4车道断面中,车道1和车道3的车头时距变化趋势符合移位负指数分布和M3分布,车道2的车头时距符合M3分布,车道4的车头时距符合移位负指数分布。In order to work out the behaviors of vehicles in different lanes at basic expressway sections,the typical basic expressway sections in Shanghai were chosen as traffic survey objects.The headway data were collected from basic expressway sections and then analyzed by statistical,fitting,and χ^2 test method.The results indicate that,the distribution characteristics of Lane 1 and Lane 3 comply with the displaced negative exponential distribution and M3 distribution,while Lane 2 fits the M3 distribution,and Lane 4 obeys the displaced negative exponential distribution.

关 键 词：基本路段 车头时距 数理统计 通行能力 

分 类 号：U491[交通运输工程—交通运输规划与管理]