Overview

This Function shall be capable of providing the following facilities:

(1) The provision of a suitable HMI through which the PT Operator can monitor and manage the operation of the PT Vehicle fleet.
(2) The ability to request and display through the HMI real-time information about PT Vehicles, including the current locations and predicted arrival times, using digital map data as a background.
(3) The ability to request and display through the HMI data about the performance of the PT Vehicle fleet in the delivery of its services.
(4) The ability to display through the HMI details of alarms raised by PT Passengers at PT Stops.
(5) The ability to display and write, using a suitable HMI, messages that are exchanged with PT Drivers in PT Vehicles.

Functional Requirements

(a) continuously monitor for the arrive of the input data flows from the PT operator
(b) output any requests for data that has been collected and locally stored by the function using the appropriate output data flows
(c) if the communications data flow arrives in (a) send its contents to the Collect PT Vehicle Data function in the communications to driver data flow
(d) if the communications from driver data flow arrives from the Collect PT Vehicle Data function, immediately output its contents to the driver in the communications data flow
(e) if any of the data flows containing historical or real time vehicle information, plus predicted PT vehicle data is received, store the data that they contain locally to await an output request from the PT operator in one of the data flows being continuously monitored in (a)
(f) if the alarm at stop data flow is received, immediately output its contents to the PT operator in the alarms raised data flow
(g) if the performance criteria data flow is received from the PT operator, send the calculate service performance data flow to the Calculate PT Service Performance function and await a response
(h) when the calculated service performance data flow is received as a result of (g), output its contents to the PT operator in the performance figures data flow.

Diagrams

Parent Higher Level Function

• 4.1 Monitor PT fleet

Input logical dataflows

• fo.pto-communications
• fo.pto-output_historic_information
• fo.pto-output_predicted_PT_data
• fo.pto-output_real_time_information
• fo.pto-performance_criteria
• mpto_alarm_at_stop
• mpto_calculated_service_performance
• mpto_communications_from_driver
• mpto_historical_vehicle_information
• mpto_predicted_PT_vehicle_data
• mpto_real_time_vehicle_information

Output logical dataflows

• mpto_calculate_service_performance
• mpto_communications_to_driver
• to.pto-alarms_raised
• to.pto-communications
• to.pto-historic_information
• to.pto-performance_figures
• to.pto-predicted_PT_data
• to.pto-real_time_information

User needs