trident.xsd v1.00 2002-10 TRIDENT exchange schema. PT Network Description Copyright (c) 2001 TRIDENT consortium, All Rights Reserved. Enumeration containing all the possible type of non PT access link A PT area made up of a set of PT Stop Points An ordered list of Stop Points on wich Journey pattern are applied A line is a set of Route _. A set of lines Basically, JourneyPattern are some ordered list of Stop Points, but these StopPoints have to be linked together (by couples) Passing time on a stop point Instance of a Journey Pattern Period during which a Vehicle Journey is applicable Connecting service description PT Operator description TimeTable informations (merge of LineTimeTable and PointTimeTable) PT Network description, and link to all the entry point for this network in the Data Model. PT Network description, and link to all the entry point for this network in the Data Model. PT Network description, can be for Public Transport or Road Network. Registration informations