Traffic Jam Formation in Traffic Flow on a Harbor Tunnel
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.
Hongdi He Weizhen Lu Liyun Dong Shiqiang Dai
Department of Building and Construction,City University of Hong Kong,Hong Kong,China Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai,200072 China Em
国际会议
北京
英文
2007-07-30（万方平台首次上网日期，不代表论文的发表时间）