ASTM PS 111-98: Specification for Dedicated Short Range Communication (DSRC) Physical Layer using Microwave in the 902-928 MHz

Source Element	Destination Element	Flow
City of Amarillo Airport Parking Management System	Private Vehicles	tag data
City of Amarillo Field Equipment	City of Amarillo Fire Vehicles	local signal preemption request
City of Amarillo Field Equipment	EMS Vehicles	local signal preemption request
Commercial Vehicles	TxDOT Amarillo Field Sensors	request tag data
Private Vehicles	City of Amarillo Airport Parking Management System	request tag data
Private Vehicles	City of Amarillo Airport Parking Management System	tag update
TxDOT Amarillo Field Sensors	Commercial Vehicles	vehicle probe data

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