Southern California Intelligent Transportation System Regional Architecture

On-board Vehicle Mayday Standards Group

Source Element	Destination Element	Flow
Arterial Traffic Control Systems	Commercial Vehicles	emergency acknowledge
Arterial Traffic Control Systems	Commercial Vehicles	emergency data request
Caltrans Regional TMCs	Commercial Vehicles	emergency acknowledge
Caltrans Regional TMCs	Commercial Vehicles	emergency data request
Commercial Vehicles	Arterial Traffic Control Systems	emergency notification
	Caltrans Regional TMCs	emergency notification
	Port Operation Centers	emergency notification
Port Operation Centers	Commercial Vehicles	emergency acknowledge
Port Operation Centers	Commercial Vehicles	emergency data request