Low Level Function
3.5.10 Evaluate Need for Long Term Maintenance
Overview
This Function shall be capable of providing the following facilities:
(1) The ability to evaluate the long term maintenance needs of the road network and shall request any needed repair activities.
(2) The ability to use the data to determine of warning should be issued to Drivers, and when these are required, send them to functionality in the Provide Advanced Driver Assistance Functional Area.
(3) The ability to collect data about the use that traffic has been making of the road network and weather information.
(4) The ability to compare road use data and weather information against what it means in terms of required long term maintenance.
(5) The ability to produce recommended road maintenance activities from this comparison.
(6) If the application of these recommended road maintenance activities is confirmed by the Road Maintenance Operator then the ability to request the Maintenance Organisation to carry out the work.
(7) If the Maintenance Organisation is instructed to carry out the recommended road maintenance work, the ability to send information about these activities to the Trip Planning and Incident Management functionalities as they will affect traffic and because they are roadworks.
(8) The ability to keep a record of the current status of the requested long term maintenance activities, which shall be updated using the input from the Maintenance Organisation.
(9) The ability to send the current status of the road maintenance activities to the store of Maintenance Data so that it can be accessed by the Road Maintenance Operator.
Functional Requirements
(a) continuously monitor for the receipt of the long term maintenance conditions, plus inter-urban and urban road use data flows
(b) continuously gather data in the long term wearing state data flow
(c) use the data collected in (a) and (b) to assess the need for long term road maintenance
(d) if long term road maintenance is needed, determine its precise location using data from the inter-urban and urban road static data for long term maintenance data flows
(e) as a result of (c) and (d) send the confirm long term maintenance data flow to the Provide Road Maintenance Operator Interface function
(f) as a result of (e) continuously monitor for receipt of the long term maintenance confirmed data flow
(g) when the data flow in (f) is received, send the instructions for the long term maintenance work to the maintenance organisation in the long term activities data flow and send the details in the confirmed long term maintenance activity data flow to the Provide Maintenance Data Store Management function
(h) also when the data flow in (f) is received, send details of the maintenance work activities to other functionality in the long term maintenance data and long term maintenance conditions data flows
(i) as a result of (g) continuously monitor for receipt of the long term maintenance activity update data flow from the maintenance organisation
(j) when the data flow in (i) is received, repeat (h) with updated information and update the data about the activities in the store of Maintenance Data using the update long term maintenance activity data flow
(k) whenever either the inter-urban or urban road static data for long term work data flows is received, store its contents locally for use in (d) above.
Diagrams
Parent Higher Level Function
Input logical dataflows
Output logical dataflows
User needs
Number | Description |
| The system shall be able to maintain statistics on road usage to evaluate the need for possible maintenance. |
| The system shall be able to transfer information to, and between, road maintenance units. |
| The system shall be able to support the management and control of maintenance contracts. |
| Hazardous Location Notification - The system shall be able to warn the driver in a timely manner, via an in-vehicle display, of adverse road surfaces and weather conditions along the planned route. |