Defines the public transport reference data model based on:- - the public transport reference data model published 2006 as EN 12896 and known as Transmodel V5.1; - the model for the Identification of Fixed Objects for Public transport, published 2009 as EN 28701and known as IFOPT; - incorporating the requirements of - EN 15531-1 to 3 and CEN/TS 15531-4 and CEN/TS 15531-5, Service interface for real-time information relating to public transport operations (SIRI); - CEN/TS 16614-1 and CEN/TS 16614-2, Network and Timetable Exchange (NeTEx); in particular the specific needs for long distance train operation.