Low Level Function
3.4.2 Monitor Atmospheric Pollution

Overview

This Function shall be capable of providing the following facilities:

(1) The ability to provide data about atmospheric pollution in the road network.
(2) The ability to provide the data about atmospheric pollution by continuously monitoring the weather conditions using sensors.
(3) The ability to send the data resulting from the weather conditions monitoring to other functionality within the System for storage.

Functional Requirements

(a) the trigger input data flow shall be continuously monitored for actual measured pollution levels
(b) at periodic intervals the measured weather conditions shall be converted into digital data
(c) when (b) is complete, the data shall be sent to the Manage Environmental Conditions Data Store function using the output trigger flow.

Diagrams

The Diagram(s) is (are) the diagram(s) where you can find the function :
  • DFD 3.4 Provide Environmental Information
  • Functional tree 3.4

    • Parent Higher Level Function

    Input logical dataflows

    Output logical dataflows

    User needs

    Number

    Description

    7.1.1.8
    The system shall be able to measure the range of visibility and detect reductions caused by adverse weather and pollution conditions (but not darkness).
    7.1.5.9
    The system shall be able to recommend re-routing strategies to reduce atmospheric pollution.
    7.5.1.4
    The system shall be able to monitor the current inter-urban traffic and weather/environmental conditions for the road network and recommend and/or set an appropriate traffic management strategy.