ASTM 5 GHz Data Link: Standard Specification for 5.9 GHz Data Link Layer

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
City of Wichita Falls PWD Vehicles	City of Wichita Falls Field Equipment	work zone warning notification
Commercial Vehicles	TxDOT Weigh in Motion	request tag data
Commercial Vehicles	TxDOT Wichita Falls District In-Vehicle Information Field Equipment	vehicle signage data
County Road and Bridge Vehicles	County Road and Bridge Field Equipment	work zone warning notification
Other Municipal PWD Vehicles	Other Municipal PWD Field Equipment	work zone warning notification
TxDOT Wichita Falls District Maintenance Vehicles	TxDOT Wichita Falls District Work Zone Equipment	work zone warning notification
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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