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Traffic Jam Formation in Traffic Flow on a Harbor Tunnel

In: Computational Mechanics

Author

Listed:
  • Hongdi He

    (City University of Hong Kong, Department of Building and Construction)

  • Weizhen Lu

    (City University of Hong Kong, Department of Building and Construction)

  • Liyun Dong

    (Shanghai University, Shanghai Institute of Applied Mathematics and Mechanics)

  • Shiqiang Dai

    (Shanghai University, Shanghai Institute of Applied Mathematics and Mechanics)

Abstract

A study on the occurrence and growth of traffic jams on a single-lane in the tunnel by using the optimal-velocity traffic model [1–3] is reported in this paper. At the low vehicle density, the current increases linearly with density and saturates at certain values of density range. As the vehicle density increases, the traffic jam appears firstly before the uphill section and extends to the downhill section with the increasing density. The relationships of velocity against position in different vehicle density are obtained from simulations, which clarifies clearly where and when the traffic jam occurs. We also derived the critical densities before and after the discontinuous fronts from the theoretical current curves. These values also comply with the results of simulation [4]. The study will be useful to provide suggestions for engineer to control the range of vehicle density in tunnel to avoid the traffic jam.

Suggested Citation

  • Hongdi He & Weizhen Lu & Liyun Dong & Shiqiang Dai, 2007. "Traffic Jam Formation in Traffic Flow on a Harbor Tunnel," Springer Books, in: Computational Mechanics, pages 263-263, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-75999-7_63
    DOI: 10.1007/978-3-540-75999-7_63
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