Austin Regional ITS Architecture

IEEE P1609.11: Standard for Wireless Access in Vehicular Environments (WAVE) - Over- the-Air Data Exchange Protocol for Intelligent Transportation Systems (ITS)

Source Element	Destination Element	Flow
CIty of Austin In-Vehicle Parking Meters	City of Austin Parking Enterprise	vehicle payment information
City of Austin Parking Enterprise	CIty of Austin In-Vehicle Parking Meters	vehicle payment request
	CIty of Austin In-Vehicle Parking Meters	vehicle payment update
	City of Austin Parking Meters	vehicle payment request
	City of Austin Parking Meters	vehicle payment update
City of Austin Parking Meters	City of Austin Parking Enterprise	vehicle payment information
Commercial Vehicles	CTRMA Toll Plazas	vehicle payment information
	TxDOT TOD Toll Plazas	vehicle payment information
CTRMA Toll Plazas	Commercial Vehicles	vehicle payment update
	Private Vehicles	vehicle payment update
Private Vehicles	CTRMA Toll Plazas	vehicle payment information
	TxDOT TOD Toll Plazas	vehicle payment information
TxDOT TOD Toll Plazas	Commercial Vehicles	vehicle payment update
	Private Vehicles	vehicle payment update