关键词: 交通工程, 元胞传输模型, 交通事件, 消散时间

Abstract: The fundamental principle of the cell transmission model is proposed and the model of the traffic incident dissipation based on CTM is put forward.The creation and dissipation of jam wave at traffic allident area on some highway of Shanghai is analyzed,and simulative calculation on this problem iscamried out based on the CTM.The simulative results show that the jam area near of the incident moves upstream,and it will take a long time when the traffic return to the original situation.The jam will move downstream after the incident is removed.So the effective traffic management is very important to relieve the congest and decrease the traffic delay.

Key words: traffic engineering, cell transmission model, traffic incident, dissipation time