CEN/TR 18362:2026

Guidelines for building multimodal travel purchase APIs based on Transmodel

Publication date:   Aug 3, 2026

Scope

The scope of the proposed work item will be:
- The context of the work done within CoRoM,
- The data information flow and steps required for purchasing any multimodal travel (including basic after sale), from the perspective of travellers,
- How to use Transmodel (EN 12896) to represent them (only Transmodel based concepts and data structure should be taken into account),
- A study of a range of existing APIs and their functionalities, which include OSDM, TOMP-API, BoB, Entur API, FerryGateway, (EU) 454/2011 (TAP TSI) etc.
- The implication of such study for Transmodel (EN 12896)
- The implication of such study on the purchase APIs taking into account the Transmodel approach.
The last part of this proposed work item will inform the revision of Transmodel Parts 5 and 6 (EN 12896-5 and EN 12896-6) and NeTEx Part 3 (TS 16614-3).

This TR covers the following functional scope:
- Provision of a catalogue / fares consultation
- Request for specific fare offers (including criteria)
- Selection of a formal offer by the customer (pre-purchase)
- Initiate the purchase
o commitment to buy
o reservation
o evidence of the purchase
- Manage after purchase (basic after-sale actions)
- All interactions can be related to persistent identity

The following items are not in scope:
- creation and distribution of the travel document
- travel planning
- payment as interface with bank SI
- access right validation
- access right control