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

Source Element	Destination Element	Flow
City of Midland Development Services Vehicles	City of Midland Field Equipment	work zone warning notification
City of Midland Field Equipment	City of Midland Fire and EMS Vehicles	local signal preemption request
	City of Midland Police Vehicles	local signal preemption request
	EZ Rider Fixed Route Transit Vehicles	local signal priority request
City of Odessa Field Equipment	City of Odessa Fire and EMS Vehicles	local signal preemption request
City of Odessa Field Equipment	EZ Rider Fixed Route Transit Vehicles	local signal priority request
City of Odessa Public Works Vehicles	City of Odessa Field Equipment	work zone warning notification
County Road and Bridge Vehicles	County Road and Bridge Field Equipment	work zone warning notification
Municipal PWD Vehicles	Municipal ITS Field Equipment	work zone warning notification
Private Vehicles	TxDOT Odessa District Field Sensors	request tag data
TxDOT Odessa District Field Sensors	Private Vehicles	vehicle probe data
TxDOT Odessa District Maintenance Vehicles	TxDOT Odessa District Work Zone Equipment	work zone warning notification

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