Simulation of the Effective Highway Capacity Under Unexpected Traffic Incident

Abstract

Because highway is fully sealed road, there is no immediately available alternative road for vehicular evacuation in the event of emergency. The impact on traffic flow and road capacity is far greater than ordinary roads, which will produce more serious than the average delay road loss. In this study, the VISSIM software was used to simulate the “3 off 1” situation on highway. The effective highway capacity under unexpected traffic incident is simulated at different mainline traffic amount, different road configuration and different speed limits in this article.