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NeTEx / SIRI / Transmodel

Information Model Transit specification sold

Transmodel provides an abstract model of common public transport concepts and data structures that can be used to underpin many different kinds of public transport information systems, in particular in the domain of public transport network management, timetabling, vehicle scheduling, fares management, operations monitoring and control, trip planning, driving personnel management....

CEN TC278, from their own opening paragraph

What I make of it

The European transit reference model. Transmodel is the conceptual model, NeTEx/SIRI the exchange formats.

Other transit data models

GTFS / GTFS-Realtime (General Transit Feed Specification) Information Model
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Model Details
Steward CEN TC278
Origin International
Layer Information Model
Domain Transit
Status live
Access Specification sold by the steward
Go to the steward →
How I know this

Compiled for the API Evangelist data model catalog, then confirmed against the steward's own site.

Confirmed 2026-08-11

Evidence: name evidence 3/3. Found something wrong? Tell me — corrections are cheap and I would rather be right.

Modernity Profile
Access Enclosed
Assessed 40.0% of the rubric

Not enough of this standard was readable to place it in a band. That is a limit of what I could see, not a finding against the standard.

A separate measure from the Kin Score, which rates API providers. This rates how current a standard is in how it is expressed, published and paid for — not how good it is. EDIFACT and X12 score low here and move an enormous share of world trade.

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