High Level Function 3.4 Provide Environmental Information
 Diagrams   Definition   
DFD 3.4 Provide Environmental Information
Functional tree 3.4

DFD 3.4 Provide Environmental Information

This is a DFD diagram which provides a description of the function in the ITS environment

Functional tree 3.4

This is a DFD diagram which provides a description of the function in the ITS environment

Overview

This High-level Function shall provide the facilities needed to collect and store data about the changes to the environment in which both the inter-urban and urban road networks operate.  The Function shall enable the data that is collected and stored to cover noise, pollution and weather.  It shall be possible for this data to be used to predict future atmospheric pollution levels.  The stored and predicted data shall be provided to other parts of the Manage Traffic Area and to other Areas within the System.

Diagrams

The Diagram(s) is(are) the Diagram(s) where you can find the function
  • The first diagram, if exists, is a DFD diagram which provides the context of the function
  • The second Diagram, if exists, is a Functional Tree which provides a hierarchical description of the function into subfunctions
  • DFD 3. Manage Traffic
  • Functional tree 3.4
    •
  • Functional Tree of Area 3
    		•

    Parent

    Component lower level functions

    The Functions gather data about the environment from a variety of sources, concentrating mainly on the atmosphere and noise. The data is collected and made available to other Functions in the Manage Traffic Area and to other Areas, as well as in the form of reports to the Operator.

    Between each of these Functions there are some Data Flows. A minority of these enable the Functions to exchange data with each other. However the vast majority enable the Functions to exchange data with other parts of the Manage Traffic Area, with other Areas and with the terminators. The Functions and Data Flows are contained in the DFD for Function 3.4 - DFD 3.4.

    Input logical dataflows

    Output logical dataflows

    User needs

    Number

    Description