Establishes the XML encoding of the method of Location Referencing used by TPEG applications.

This document establishes the XML encoding of the method of Location Referencing used by TPEG applications.

TPEG applications contain the information required by a client TPEG decoder (i.e. both Location Referencing and event information), to present all the information intended for the end-user when it was originated by the service provider.

Location Referencing requires a service provider to give an impression or image, to the human end-user, of where an event has taken place. This cannot be done easily because the human end-user may or may not be familiar with the location. tpeg-loc has the added challenge of attempting to be as language independent as possible. This is achieved by the use of tpeg-loc tables (essentially word-oriented data object dictionaries).

tpeg-loc is the recommended Location Referencing system for TPEG. It provides location data in a machine readable form that allows a “thick?? client such as a navigation system to map-match, on-the-fly, to locate the event being described onto a digital map display. However, it is possible to additionally use other location methods, such as the ‘Link-id’ method by suitably modifying the tpegML.dtd to include the relevant lines, e.g.:

It is vital, for further understanding of this document, to have more than a passing understanding of the tpeg-loc binary specification which describes, among other things, in a step-by step approach: point, link and area definitions, and how they are structured to provide a full Location Referencing system.