Chattanooga Regional ITS Architecture

Dedicated Short Range Communication at 5.9 GHz Standards Group

Source Element	Destination Element	Flow
CARTA Fixed-Route Vehicles	City of Chattanooga Traffic Signals	local signal priority request
City of Chattanooga Fire Vehicles	City of Chattanooga Traffic Signals	local signal preemption request
Municipal/County Public Safety Vehicles	Municipal Traffic Signals	local signal preemption request
Oak Ridge National Laboratory Emissions Sensors	Public/Private Vehicles	vehicle signage data
Private Vehicle	TDOT Toll Plazas	vehicle payment information
TDOT Toll Plazas	Private Vehicle	vehicle payment update