交通运输系统工程与信息

交通运输系统工程与信息 ›› 2006, Vol. 6 ›› Issue (2): 14-17 .

• 智能交通系统与信息技术 • 上一篇    下一篇

一种改进的跟驰状态判定方法

杨小宝，张宁   

  1. 北京航空航天大学经济管理学院，北京100083
  • 收稿日期:2005-12-05 修回日期:1900-01-01 出版日期:2006-04-20 发布日期:2006-04-20

An Improved Method of Determining Car-Following State

YANG Xiao-bao，ZHANG Ning   

  1. School of Economic and Management，Beijing University of Aeronautics and Astronautics，Beijing 100083，China
  • Received:2005-12-05 Revised:1900-01-01 Online:2006-04-20 Published:2006-04-20

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被引次数

36

摘要： 针对现行交通仿真研究中跟驰状态判定的不足之处，本文基于何民等人利用相对速度绝对差随车头时距变化的规律来判定跟驰状态的基础上，通过实测数据深入分析前后车速度的相关系数与车头时距的关系，提出了利用前后车速度的相关系数随车头时距变化的规律来确定车辆跟驰状态的临界值，与以前的方法相比，这一方法考虑的信息更为全面，与现实结合更为紧密，本研究期望能对提高交通微观仿真的精确度、可信度取到一些有益的作用.

关键词: 跟驰状态, 车头时距, 相关系数, 速度

Abstract: Aimed to solve the deficiency of determining car-following state，based on He’s method which uses the varying rule between the absolute value of relative speed difference and time headway，this paper presents a new method. This proposed method employs the varying rule between time headway and the relative coefficient of both leading and lag vehicles on the basis of analyzing the surveyed data. Compared with former methods，the improved Method considers more information and links with the fact closer. This research may have an important role in heightening the precision and reliability of microscopic traffic simulation.

Key words: car-following state, time headway, relative coefficient, speed