vehicle_situation_data_at_border

This data flow consists of traffic situational data collected at the roadside for further processing by the Manage Traffic function to determine traffic conditions at a border crossing. For each vehicle, the data includes unique vehicle identifiers, the vehicle's speed, heading and snapshots of recent events including starts and stops, speed changes, and other information that can be used to estimate traffic conditions. It consists of the following data items each of which is defined in its own DDE:

list_size
+ station_id
+ list_size {vehicle_traffic_situation_data}

Sub Data Flows

• list_size
• station_id
• vehicle_traffic_situation_data

Parent Data Flows

• None

Associated PSpecs/Terminators

• 1.1.6 - Collect Vehicle Traffic Surveillance Data
• 1.1.2.5 - Process Vehicle Situation Data

Parent Information Flows

• local border wait times