[1] Qi Hongsheng, Wang Dianhai, Song Xianmin, et al. On the critical conditions of traffic jams [J]. Journal of Southeast University (English Edition), 2011, 27 (2): 180-184. [doi:10.3969/j.issn.1003-7985.2011.02.013]

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On the critical conditions of traffic jams()

交通拥堵形成的临界条件

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

27

Issue:

2011 2

Page:

180-184

Research Field:

Traffic and Transportation Engineering

Publishing date:

2011-06-30

Info

Title:

On the critical conditions of traffic jams

交通拥堵形成的临界条件

Author(s):

Qi Hongsheng¹;  Wang Dianhai¹;  2;  Song Xianmin¹

¹ Transportation College, Jilin University, Changchun 130025, China
² College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China

祁宏生¹;  王殿海¹;  2;  宋现敏¹

¹吉林大学交通学院, 长春 130025; ² 浙江大学建筑工程学院, 杭州 310058

Keywords:

traffic engineering;  traffic jam;  traffic signal;  road network;  traffic wave

交通工程;  交通拥堵;  交通信号;  路网;  交通波

PACS:

U491

DOI:

10.3969/j.issn.1003-7985.2011.02.013

Abstract:

Traffic wave theory is used to study the critical conditions for traffic jams according to their features. First, the characteristics of traffic wave propagation is analyzed for the simple signal-controlled lane and the critical conditions for oversaturation is established. Then, the basic road is decomposed into a series of one-way links according to its topological characteristics. Based on the decomposition, traffic wave propagation under complex conditions is studied. Three complicated factors are considered to establish the corresponding critical conditions of jam formation, namely, dynamic and insufficient split, channelized section spillover and endogenous traffic flow. The results show that road geometric features, traffic demand structures and signal settings influence the formation and propagation of traffic congestion. These findings can serve as a theoretical basis for future network jam control.

根据网络交通拥挤的特征, 利用交通波理论研究了交通拥堵形成的临界条件.首先分析了单车道信号控制路段的交通波传播特性, 建立了过饱和形成的临界条件.然后针对基本路段拓扑结构特征, 将基本路段分解为一系列单车道路段, 在此基础上研究了复杂条件下交通波传播规律, 并考虑了3种复杂因素, 建立了相应的交通拥挤形成临界条件, 包括不足的绿信比、渠化区上溯以及路段内部出入口交通流的影响.研究结果显示, 路段的物理结构、交通流需求结构以及信号设置均会影响到交通拥堵的形成和扩散.研究结果为路网拥堵的控制提供了一定的理论基础.

References:

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[3] Schreckenberg M, Neubert L, Wahle J. Simulation of traffic in large road networks[J]. Future Generation Computer Systems, 2001, 17(5):649-657.
[4] Linesch N J, D’Souza R M. Periodic states, local effects and coexistence in the BML traffic jam model[J]. Physica A: Statistical Mechanics and Its Applications, 2008, 387(24):6170-6176.
[5] Nagatani T, The physics of traffic jams[J]. Reports on Progress in Physics, 2002, 65: 1331-1386.
[6] Daganzo C F. Urban gridlock: macroscopic modeling and mitigation approaches[J]. Transportation Research, Part B, 2007, 41(1): 49-62.
[7] Lago A, Daganzo C F. Spillovers, merging traffic and the morning commute[J]. Transportation Research, Part B, 2007, 41(6):670-683.
[8] Sheffi Y. Urban transportation networks: equilibrium analysis with mathematical programming methods[M]. Englewood Cliffs, NJ: Prentice-Hall, Inc., 1985.

Memo

Memo:

Biographies: Qi Hongsheng(1983—), male, graduate; Wang Dianhai(corresponding author), male, doctor, professor, wangdianhai@sohu.com.
Foundation items: The National Basic Research Program of China(973 Program)(No.2006CB705505), the Basic Scientific Research Fund of Jilin University(No.200903209).
Citation: Qi Hongsheng, Wang Dianhai, Song Xianmin. On the critical conditions of traffic jams[J].Journal of Southeast University(English Edition), 2011, 27(2):180-184.[doi:10.3969/j.issn.1003-7985.2011.02.013]

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