Choose a standard
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Transmodel 6.2
The conceptual data model behind the other three: its packages, every class with its attributes and relationships, and the model's diagrams.
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NeTEx 2.0
Network Timetable Exchange: stops, networks, timetables, fares and more, for exchanging planned public transport data.
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SIRI 2.3
Service Interface for Real-time Information: arrivals and departures, vehicle positions, disruptions and the services that exchange them.
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OpRa 1.0
Operational Raw Data: what actually ran, and standard indicators about it, for exchanging historical data.
About this site
The reference generator, prettyxsd, and this site were made by Giles Antonio Radford.
The code that generates the site was written with the help of AI. The documentation itself is not AI-written: every element, type, description and line of source shown here is taken directly from the official reference schemas on GitHub, and the Transmodel pages from the model published at transmodel-cen.eu.
The schemas share one set of element and type pages: a type used by several standards has one page wherever its definition is the same.
This is an independent reference, not an official CEN publication.