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

Source Element	Destination Element	Flow
City of Del Rio Field Equipment	City of Del Rio Fire Vehicles	local signal preemption request
City of Del Rio Field Equipment	Val Verde EMS Vehicles	local signal preemption request
City of Del Rio International Bridge Field Equipment	Commercial Vehicles	vehicle probe data
City of Del Rio International Bridge Field Equipment	Private Vehicles	vehicle probe data
City of Del Rio International Bridge Toll Plazas	City of Del Rio Toll Tags	tag data
City of Del Rio Streets Department Vehicles	City of Del Rio Field Equipment	work zone warning notification
City of Del Rio Toll Tags	City of Del Rio International Bridge Toll Plazas	request tag data
City of Del Rio Toll Tags	City of Del Rio International Bridge Toll Plazas	tag update
Commercial Vehicles	City of Del Rio International Bridge Field Equipment	request tag data
Private Vehicles	City of Del Rio International Bridge Field Equipment	request tag data
TxDOT Del Rio Field Equipment	City of Del Rio Fire Vehicles	local signal preemption request
TxDOT Del Rio Field Equipment	Val Verde EMS Vehicles	local signal preemption request
TxDOT Maintenance Vehicles	TxDOT Del Rio Field Equipment	work zone warning notification

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