IEEE P1556: Security/Privacy of Vehicle/RS Communications including Smart Card Communications

Source Element	Destination Element	Flow
City of Wichita Falls Field Equipment	City of Wichita Falls Emergency Vehicles	local signal preemption request
City of Wichita Falls Field Equipment	Private Ambulance Vehicle	local signal preemption request
Commercial Vehicles	TxDOT Weigh in Motion	request tag data
Commercial Vehicles	TxDOT Wichita Falls District In-Vehicle Information Field Equipment	vehicle signage data
TxDOT Wichita Falls District Traffic Signals	DPS Emergency Vehicles	local signal preemption request
	Other Municipal or County Emergency Vehicles	local signal preemption request
	Private Ambulance Vehicle	local signal preemption request

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