trident.xsd v1.00 2002-10 TRIDENT exchange schema. Location referencing Description Copyright (c) 2001 TRIDENT consortium, All Rights Reserved. General description of a logical location (point, area, link,network,line....) This type is an abstract type General description of a location (point, area, link) This type is an abstract type Full Description of an address Full Description of an address Full Description of an address Description of a point of interest: this is provided if the point is at or near a major landmark or point of interest. Position of a point in WGS 84 Coordinate. Position of a point in a projection system. General point used to build any kind of point StopPoint on a Route of a Line of a PT Network General point used to build any kind of point The physical (spatial) possibility for a passenger to access or leave the PT network. An origin place not belonging to the PT network. StopPoint on a Route of a Line of a PT Network An airport An bus sopt point An TRAM stop point An metro stop point An Railwaystop point A General Link Between two Points (or object inheriting from Point) The path between two places covered by any "personal" mean of transport Link between a StopPoint and an AccessPoint. Link between a StopPoint and an AccessPoint. A Link between two StopPoints The path between two places covered on the road network by a private means of transport (car, truck, etc). An area made up of a set of Points