What is "naptan"

The National Public Transport Access Node (NaPTAN) database is a UK nationwide system for uniquely identifying all the points of access to public transport in the UK. The database is closely associated with the National Public Transport Gazetteer.

Every UK railway station, coach terminus, airport, ferry terminal, bus stop, taxi rank or other place where public transport can be joined or left is allocated a unique NaPTAN identifier. The relationship of the stop to a City, Town, Village or other locality can be indicated through an association with elements of the National Public Transport Gazetteer.

There is a CEN standardisation initiative, Identification of Fixed Objects In Public Transport ('IFOPT'), to develop NaPTAN concepts into a European standard for stop identification as an extension to Transmodel, the European standard for Public Transport information.