Overview

This Function shall be capable of providing the following facilities:

(1) The ability to provide output of information about service areas to Drivers, which shall be updated as soon as new data is received.
(2) The ability for the information to be output about car parks, if it is available from other functionality.
(3) The ability for the information output to show either the current service area occupancy (number of spaces) or the current status depending on what is required by the Parking Operator.
(4) The ability for the Parking Operator to select which car park occupancies and/or status are displayed.
(5) The ability for the way in which the information is displayed to be selected from options such as, “all”, “cars/motorcycles”, “buses/coaches” and “HGV’s”.

Functional Requirements

(a) when either the status or occupancy for output messages are received, output their contents to drivers
(b) when the carpark occupancy for inter-urban data flow is received, output its contents to drivers
(c) when the service area output settings data flow is received adjust the way that all future outputs are display according to the contents of the data flow

Diagrams

Parent Higher Level Function

• 3.1.5 Provide Management of Service Areas

Input logical dataflows

• mt_carpark_occupancy_for_inter-urban
• mt_service_area_occupancy_information_for_output
• mt_service_area_output_settings
• mt_service_area_status_for_output

Output logical dataflows

• td-service_area_occupancy
• td-service_area_status

User needs