1.1GeneralNeTEx is dedicated to the exchange of scheduled data (network, timetable and fare information). It is based on Transmodel V6 (EN 12896 series) and SIRI (CEN/TS 15531-4/-5 and EN 15531-1/-2/-3) and supports the exchange of information of relevance for passenger information about public transport services and also for running Automated Vehicle Monitoring Systems (AVMS).NOTEMany NeTEx concepts are taken directly from Transmodel; the definitions and explanation of these concepts are extracted directly from the respective standard and reused in NeTEx, sometimes with adaptions in order to fit the NeTEx context.Although the data exchanges targeted by NeTEx are predominantly oriented towards provisioning passenger information systems and AVMS with data from transit scheduling systems, it is not restricted to this purpose and NeTEx can also provide an effective solution to many other use cases for transport data exchange.1.2Transport modesAll mass public transport modes are taken into account by NeTEx, including train, bus, coach, metro, tramway, ferry, and their submodes. It is possible to describe airports and air journeys, but there has not been any specific consideration of any additional requirements that apply specifically to air transport.1.3Compatibility with existing standards and recommendationsConcepts covered in NeTEx that relate in particular to long-distance train travel include; rail operators and related organizations; stations and related equipment; journey coupling and journey parts; train composition and facilities; planned passing times; timetable versions and validity conditions.In the case of long distance train the NeTEx takes into account the requirements formulated by the ERA (European Rail Agency) - TAP/TSI (Telematics Applications for Passenger/ Technical Specification for Interoperability, entered into force on 13 May 2011 as the Commission Regulation (EU) No 454/2011), based on UIC directives.As regards the other exchange protocols, a formal compatibility is ensured with TransXChange (UK), VDV 452 (Germany), NEPTUNE (France), UIC Leaflet, BISON (The Netherlands) and NOPTIS (Nordic Public Transport Interface Standard).The data exchange is possible either through dedicated web services, through data file exchanges, or using the SIRI exchange protocol as described in part 2 of the SIRI documentation.