Emergency Situation Prediction Mechanism: A Novel Approach for Intelligent Transportation System Using Vehicular Ad Hoc Networks

Table 1

Simulation parameters.

Parameter	Value
Highway scenario dimension	1000 m, 2 lanes, and 1 direction
Simulation time	300 s
Assumed vehicle length	5 m
Vehicle speed limits	60–90 Km/h
Average speed	70 Km/h
Vehicle density	50–70 vehicles per 500 m
Traffic rate/vehicle injection rate	(1/75, 1/60, 1/45, 1/15, 1/5) vehicles/sec/lane
Vehicle transmission range	500 m
Sensing radius of sensors	6 m
Number of vehicles	150
Number of road sensors	200
Number of lanes	2 lanes
Distance between two sensors in a lane	6 m
Distance between two sensors in two neighboring lanes	3.6 m
Period of message exchange	0.10 second (i.e., 100 milliseconds)