em_to_device_control

This data flow is sent from the Manage Emergency Services function to the Manage Traffic function. It contains data about the preemption requests needed by emergency vehicles. The data flow consists of the following data items each of which is defined in its own DDE:

emergency_traffic_control_request
+ emergency_vehicle_preemptions
+ barrier_system_control_from_emerg_veh

Sub Data Flows

• barrier_system_control_from_emerg_veh
• emergency_traffic_control_request
• emergency_vehicle_preemptions

Parent Data Flows

• em_data_for_traffic

Associated PSpecs/Terminators

• None