Priority-Based Inter-Vehicle Communication for Highway Safety Messaging Using IEEE 802.11e

Table 1

Examples of safety message priorities.

Priority	Type	Examples
Pri(1)	Accident	Air bag sensor
		Vehicle’s body sensor
Pri(2)	Possibility of accident	Thermal sensor
		Hard break
Pri(3)	Warning	Surface condition
		Road work warning
Pri(4)	General	Traffic congestion
		Weather condition