transit_ramp_priority_given

This data flow is sent from the Manage Transit function to the Manage Traffic function. It contains confirmation that the overall priority request for one or more transit vehicles over the ramp signals in a wide area as opposed to priority requests from individual vehicles at a particular set of ramp signals has been given. The data flow consists of the following data item which is defined in its own DDE:

confirmation_flag

Sub Data Flows

• confirmation_flag

Parent Data Flows

• transit_updates

Associated PSpecs/Terminators

• 1.2.3 - Determine Ramp State
• 4.1.5.2 - Manage Transit Vehicle Deviations

Parent Information Flows

• traffic control priority status
• dynamic bus lane status