交通运输系统工程与信息 ›› 2017, Vol. 17 ›› Issue (5): 98-103.

• 系统工程理论与方法 • 上一篇    下一篇

交通事件影响下路网逐日出行动态可靠性

陈玲娟* 1, 2,王殿海2,刘玲丽1   

  1. 1. 武汉科技大学汽车与交通工程学院,武汉430081;2. 浙江大学建筑工程学院,杭州310058
  • 收稿日期:2017-03-15 修回日期:2017-05-10 出版日期:2017-10-25 发布日期:2017-10-30
  • 作者简介:陈玲娟(1985-),女,湖北天门人,副教授.
  • 基金资助:

    国家自然科学基金/National Natural Science Foundation of China(51308425);湖北省教育厅中青年人才项目/ Young Talents Project Supported by Hubei Provincial Department of Education(Q20161102).

Dynamic Reliability of Day-to-day Network under Incident

CHEN Ling-juan 1, 2,WANG Dian-hai 2, LIU Ling-li 1   

  1. 1. School of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan 430081, China; 2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
  • Received:2017-03-15 Revised:2017-05-10 Online:2017-10-25 Published:2017-10-30

摘要:

为描述交通事件持续期间逐日出行过程中的路网服务性能,构建日变路网逐日出行选择模型及可靠性指标.首先,根据出行经验更新路网阻抗,以准点到达概率最大化调整逐日出行中各出发时刻的路径总流量,以路径累积前景最大为目标调整单条路径在各出发时刻的流量,从而建立考虑出发时刻的逐日出行流量推演模型;其次,以交通事件发生前路网流量稳态时的准点到达概率和路径走行时间为参照基数,定义出发时刻准点到达和路径走行时间动态可靠性,并给出计算方法.最后,用算例验证模型和算法,并比较在出行模型中考虑可靠度时对路网逐日流量分布和路网可靠性的影响.

关键词: 城市交通, 动态可靠性, 准点到达概率, 累积前景, 日变路网

Abstract:

In order to describe road network performance during long-term traffic incident, a route choice model and a reliability calculation model are built for day- to- day network. First, with the principle of maximizing the probability of on-time arrival, the distribution of total flow on all paths is adjusted day by day, and with the goal of maximizing the path cumulative prospect, the distribution of flow on single path at every departure time is calculated. The travel choice model on day-to-day network is established based on considering departure time choice. Second, on-time arrival reliability of departure time and travel time reliability of chosen path is defined and calculated. Finally, an example is adopted to verify the model and algorithm. And a comparison for flow distribution and network reliability is made between considering and non-considering reliability for travel choice.

Key words: urban traffic, dynamic reliability, on-time arrival probability, cumulative prospect, day-to-day network

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