Overview

This Function shall be capable of providing the following facilities:

(1) The ability to receive information about predicted PT Vehicle arrival times from the prediction functionality.
(2) The ability to use a suitable HMI to display to Travellers on PT Vehicles information about their arrival times at the next PT stops.
(3) The ability to filter information that is received so that only information which is relevant to the service that the PT Vehicle is operating and its current location is displayed.
(4) The ability to output information to those with disabilities, e.g. deafness and blindness.
(5) The ability to continuously monitor its operation and when a problem is detected, send a message to the Monitor PT infrastructure functionality.

Functional Requirements

(a) continuously monitor for the arrive of the service information for passengers and the service information for vehicles data flows
(b) continuously collect the location data and determine the current location of the PT vehicle
(c) when the either of the data flows in (a) is received process the data to filter out anything that is not relevant to the current and predicted location of the function
(d) when (c) is complete output the result to the PT passenger in the predicted PT information data flow
(e) if there are problems with completing (a) to (d) send the details in the faulty PT vehicle display data flow to the Monitor PT Infrastructure function.

Diagrams

Parent Higher Level Function

• 4.1 Monitor PT fleet

Input logical dataflows

• flds-mpto_passenger_location
• mpto_service_change_information_for_vehicles
• mpto_service_information_for_passengers

Output logical dataflows

• mpto_faulty_PT_vehicle_display
• tt.ptp-predicted_PT_information

User needs