selected_ramp_control_strategy

This data flow is used within the Manage Traffic function and contains the strategy which has been selected for implementation at highway entry ramps by the local ramp metering equipment. The strategy may be either 'open', 'closed' or 'admit vehicles when not congested' and may be applied to some or all of the ramps in the geographic area served by the TMC. The data flow consists of the following data items each of which is defined in its own DDE:

ramp_list
+ selected_ramp_strategy_type

Sub Data Flows

• ramp_list
• selected_ramp_strategy_type

Parent Data Flows

• incident_strategy_override
• permit_traffic_controls
• selected_strategy

Associated PSpecs/Terminators

• 1.2.1 - Select Strategy
• 1.2.3 - Determine Ramp State