具有物理排队的多模式动态网络加载问题研究

交通运输系统工程与信息 ›› 2009, Vol. 9 ›› Issue (1): 56-61 .

• 智能交通系统与信息技术 • 上一篇下一篇

具有物理排队的多模式动态网络加载问题研究

李曙光^* ;许宏科

长安大学电子与控制工程学院西安 710064

收稿日期:2008-01-15 修回日期:2008-06-05 出版日期:2009-02-25 发布日期:2009-02-25
通讯作者: 李曙光
作者简介:李曙光（1974-），男，安徽郎溪人，副教授，博士.
基金资助:
国家自然科学基金（60804049）；长安大学科技发展基金（0305-1001）.

Physical Queue Discrete-time Dynamic Network Loading with Multiple Vehicle Types

LI Shu-guang； XU Hong-ke

School of Electrical and Control Engineering, Chang’an University, Xi’an 710064,China

Received:2008-01-15 Revised:2008-06-05 Online:2009-02-25 Published:2009-02-25
Contact: LI Shu-guang

摘要/Abstract

摘要： 给出了一个物理排队条件下的考虑多种交通模式相互作用的离散时间动态网络装载模型，模型将的单一模式动力波理论扩展为多模式的动力波理论，假设路段上只有两种流量状态:一个是后向波，不同模式车辆处于拥挤状态时，车辆不能通过超车来改变车辆速度，进而导致处于排队中的不同模式车辆速度趋于一致，进而只以一种拥挤波向后传播;另一个是前向波，由于不同模式车辆处于自由流状态，车辆按照自身速度行驶。根据路段出入口的不同模式车辆的累计车辆数，以及路段波速，计算可能的路段出入口流量；并以此为基础，进一步计算路段的实际出入口流量。仿真试验结果表明,模型能够很好的反映多模式拥挤排队状况。

关键词: 动态网络装载, 动力波, 排队后溢, 多模式

Abstract: This paper presents a physical-queue discrete-time dynamic network model for interacting with multiple vehicle types. Single type kinematics wave method is extended to multiple type kinematics wave method. It is assumed that only two flow conditions on link, one is queue condition, various vehicles can not overtake, and the speeds of various type vehicles are the same. The other is free flow condition; each type of vehicles can run according to the each type of free-flow velocity. The possible link inflow and exit-flow rates are calculated based on the cumulative link arrivals and departures, and then actual link inflow and exit-flow rates are provided. The simulation results show that the model can demonstrate the multimodal spillback conditions among the links.

Key words: dynamic network loading, kinematics wave, spillback queue, multiple types

中图分类号:

U491

李曙光,许宏科. 具有物理排队的多模式动态网络加载问题研究[J]. 交通运输系统工程与信息, 2009, 9(1): 56-61 .

LI Shu-guang, XU Hong-ke. Physical Queue Discrete-time Dynamic Network Loading with Multiple Vehicle Types[J]. Journal of Transportation Systems Engineering and Information Technology, 2009, 9(1): 56-61 .

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http://www.tseit.org.cn/CN/Y2009/V9/I1/56

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具有物理排队的多模式动态网络加载问题研究

Physical Queue Discrete-time Dynamic Network Loading with Multiple Vehicle Types

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