The purpose of the On Demand Timetables GTFS feed is to publish in advance the schedules and route information of On Demand services operated in NSW. The On Demand data feed is in the form of a General Transit Feed Specification fileset, known as ‘GTFS’, and contains extension files that conform to the proposed GTFS-Flex v2 specification. The On Demand GTFS-Flex v2 feed does not replace or supersede any of the NSW GTFS feeds, the On Demand GTFS rather provides service information specific to these On Demand services which are not included in the traditional service timetable NSW GTFS feeds.