High Level Function 9.1 Enable Other Vehicle Priority Selection
 Diagram   Definition   
DFD 9.1 Enable Other Vehicle Priority

DFD 9.1 Enable Other Vehicle Priority

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

Overview

This High-level Function shall provide facilities that enable Other Vehicles to request green waves through signalised road junctions on the route to their destinations.  Once a green wave has been successfully requested, it will be implemented immediately through the Manage Traffic functionality.  If there is only one signalised junction on the route, then the green wave will be implemented through a request for local priority at that junction.  If priority conflicts arise at a junction, the functionality will give priority to Emergency Vehicles, then PT Vehicles and finally Other Vehicles.  Priority conflicts between Other Vehicles will be resolved in favour of the Vehicle that first requested priority.  Other Vehicles will be informed if their priority request has been successful or not, and will be provided with speed advice if successful.  All Vehicles approaching a signalised junction will be informed if priority has been granted to any Vehicles approaching it.

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 9 Provide Support for Cooperative Systems
  • Functional Tree of Area 9
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    Component lower level functions

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    Output logical dataflows

    User needs

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