Application of the Bayesian Model Averaging in Analyzing Freeway Traffic Incident Clearance Time for Emergency Management

Table 1

The key information for valid incidents affected by candidate explanatory variables.

Category	Variable	Value set
Incident	Incident type	(Disabled vehicle, debris, abandoned vehicle, collision and others^a (=0))
	Lane closure type	(Single lane blocked, multiple lanes blocked, all travel lanes blocked and total closure)
	Injury involved	(0, 1)
	Fire involved	(0, 1)
	Work zone involved	(0, 1)
	Heavy truck involved	(0, 1)
Temporal	Time of the day	(Daytime (=0), night (22:00–6:00) (=1))
	Day of the week	(Weekday (=0), weekend (Sat, Sun) (=1))
	Month of the year	(Summer (Jun, Jul, Aug), winter (Dec, Jan, Feb) and other seasons (=0))
Geographic	Incident on Hov lane^b	(0, 1)
Environmental	Weather	(Rainy, snowy and other type (=0))
Traffic	Peak hours (6:00–9:00, 15:00–18:00)	(0, 1)
	Response time	R+
Operational	Traffic control	(0, 1)
	Washington state patrol (WSP) involved	(0, 1)

^aOthers refer to car fires, police activity, and medical emergency on the road, etc. ^bHov lane refers to the vehicle lane with high-occupancy.