Accident Management System Based on Vehicular Network for an Intelligent Transportation System in Urban Environments

Table 1

Summary of the important mathematical notations.

Symbol	Description
	Vehicles
	Destination
	Road segment
	Sample time duration
	Prevailing length of the path
	The path selected ahead of the re-planning
	The changed path
	The new path
	Vehicle travel cost
	A nonnegative accumulative function
	The average cost of vehicles on road segment
	The average cost of vehicles on intersection
	The set of adjacent crossing of intersection
	The average inflow rates of road segment
	The average outflow rates of road segment
	The upstream vehicle arrivals respectively on road segment
	The upstream vehicle departure rates on road segment
	Sample time duration
	The total length of all virtual queues of intersection
	Weighted intersection
	Intersection i’s weight in sample time
	Virtual queues representing the number of the shielded vehicles travelling through intersection
	Virtual queues representing the number of the shielded vehicles travelling through intersection
	The huge differential row build-up for intersection and the other adjacent intersection
	Re-planning to intersection of a number of vehicles