6.6.2 - Select Vehicle Route

This page shows the collection of processes that provide the Select Vehicle Route facility within the Provide Guidance and Routing Services function. The processes are responsible for selecting routes that are only for use by private cars and commercial vehicles.

The key points about the facility are as follows:
- Routes are selected using a variety of parameters, e.g., safest, least used, etc. and traffic data;
- Additional data requested from ITS functions serving other areas when routes go outside local area;
- Traffic and vehicle probe data plus previously selected routes can be used in calculation of route;
- Route data can be used in predictive model generation and demand forecasting by Manage Traffic function;
- Map updates describing the surface street and freeway network are provided by the map update supplier;
- Parameters controlling route selection set up by operator;
- In-vehicle guidance only provided when acceptance received from the vehicle.

There are three processes defined as Process Specifications (PSpecs) in this collection:

1) Calculate Vehicle Route (
2) Provide Vehicle Route Calculation Data (
3) Provide Route Segment Data for Other Areas (

Parent Collection: 6.6 - Provide Guidance and Routing Services