Sam Schwartz Engineering and TransSafe were engaged by the City of Seattle in May 2015 to review national best practices in Traffic Incident Management (TIM), evaluate the state of TIM in the City, and make recommendations for improvements to Seattle’s TIM procedures. The project’s genesis was an incident during which slow clearance of an overturned tractor trailer rendered the Alaskan Way Viaduct (SR-99) closed to traffic for nine hours in March 2015.

Like many major cities, Seattle was struggling with agency coordination during a TIM response. A major focus of this project, as a result, was examining how multi-agency responses to major traffic incidents could be improved in Seattle through stronger preparation, training, and agency cooperation.

Please click here to read the report.