A Dynamic Traffic Assignment Approach to Evaluating Incident-Induced User Delay Costs with Integrated Corridor Management: A Case Study in Austin, Texas

摘要: Traffic incidents often require lane or road closures to facilitate the incident clearance and ensure the safety of first responders. With the integrated corridor management (ICM) strategies, upstream traffic could be diverted to parallel roadways and the incident-induced traffic congestion is managed in an integrated system rather than individual facilities. This study delivers an example of estimating the incident-induced user delay costs with ICM strategies. A dynamic traffic assignment (DTA) tool is used to quantify the travel delays caused by an incident under various ICM strategies. In particular, a case study based on a fatal crash on the Interstate 35 in Austin, Texas, is performed under three types of ICM strategies. The DTA can capture more realistic traffic flow characteristics by considering time-dependent link information, compared to the static traffic assignment (STA) method. DTA parameters are specified to …