emv_center_preemption_request

This data flow is sent to the Provide Driver and Traveler Services function from the Manage Emergency Vehicles function and contains data necessary for an emergency vehicle to be given signal preemption at a ramp or signalized intersection. The data flow is sent directly from the vehicle to a center for distribution to the management function that will be responsible for any received preemption request. It consists of the following items each of which is defined in its own DDE:

signal_preemption_request
+ vehicle_identity
+ date
+ time
+ location_identity
+ route_point
+ vehicle_path_prediction_data

Sub Data Flows

• date
• location_identity
• route_point
• signal_preemption_request
• time
• vehicle_identity
• vehicle_path_prediction_data

Parent Data Flows

• transportation_information_signal_requests
• transportation_signal_preemption_for_traffic

Associated PSpecs/Terminators

• 5.3.3 - Provide Emergency Vehicle Location
• 6.2.2 - Collect Traffic Data

Parent Information Flows

• signal preemption request