High Level Function 3.3 Manage Demand
 Diagrams   Definition   
DFD 3.3 Manage Demand
Functional tree 3.3

DFD 3.3 Manage Demand

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

Functional tree 3.3

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

Overview

This High-level Function shall provide facilities for the management of the demand from travellers within the road network.  The Function shall provide facilities that enable travellers to be directed and encouraged to use all modes of transport, including walking and cycling.  The management activity shall be based on data collected within the Manage Traffic Area and by other Areas of the System.  The Function shall enable these other Areas to be involved in the implementation of demand management strategies that aim to re-distribute traveller demand between modes of transport.

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 3.3
    •
  • Functional Tree of Area 3
    		•

    Parent

    Component lower level functions

    The Functions use the term "demand" to mean the desire for travellers to use particular modes of transport. Facilities are provided by these Functions to enable this demand to be managed so that the use of one mode does not dominate the others, unless this is required by national or local transport policies. This also enables priority to be given to certain modes of transport, again only if this is a goal of national or local policies.

    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 3.3 - DFD 3.3.

    Input logical dataflows

    Output logical dataflows

    User needs

    Number

    Description