This data flow is sent from the Provide Driver and Traveler Services function to the Provide Electronic Payment Services function and contains a request for data about the number of spaces that are available in a particular parking lot at the specified date and time. This data is requested as part of the process of putting together a proposed trip in response to a traveler's trip request. This data flow contains the following items each of which is defined in its own DDE:

+ parking_lot_identity
+ time
+ traveler_identity

Sub Data Flows

Parent Data Flows

Associated PSpecs/Terminators

Parent Information Flows