Public transport - Service interface for real-time information relating to public transport operations - Part 2: Communications infrastructure; English version CEN/TS 15531-2:2007
Public transport - Service interface for real-time information relating to public transport operations - Part 2: Communications; English version EN 15531-2:2015— 131 стр.
Intelligent transport systems - Public transport - Identification of Fixed Objects in Public Transport (IFOPT); English version EN 28701:2012— 160 стр.