vehicle_traffic_data_for_freeways

This data flow provides local traffic conditions based on the collected inputs from onboard equipment transmitting information about their position and status to the roadside. This provides other local devices with information to support ramp meter signal timing adjustments based on current traffic conditions. This data flow consists of the following items each of which is defined in its own DDE:

unit_number
+ link_type
+ location_identity
+ vehicle_occupancy
+ vehicle_speed

Sub Data Flows

• link_type
• location_identity
• unit_number
• vehicle_occupancy
• vehicle_speed

Parent Data Flows

• None

Associated PSpecs/Terminators

• 1.1.2.6 - Process Collected Vehicle Safety Data
• 1.2.7.5 - Process Indicator Output Data for Freeways

Parent Information Flows

• traffic situation data