amber alert confirmation_ud
(Future)
Confirmation that the amber alert system commands have been received. Confirmation may include the messages that was activated and displayed.
amber alert_ud
(Future)
Amber alert information to be placed on dynamic message signs controlled by a traffic management element.
traffic information coordination
(Future)
Traffic information exchanged between TMC’s. Normally would include incidents, congestion data, traffic data, signal timing plans, and real-time signal control information.