The project is part of the research package on mobility pricing and investigates the European dimension of road pricing as one specific implementation of mobility pricing. Mobility pricing is the generic term for the charging of services in the transport domain according to the costs caused by the user. Besides road pricing (being the fee collection for the use of the road infrastructure as a means to finance new roads and to improve the traffic management) it includes, the collection of parking fees and the fare collection in public transport on the roads. The directive 2004/52/EC on the interoperability of systems for electronic fee collection, enforced by the EU, with its restriction of the technologies to be used for this purpose and with its request for a European electronic toll service, is expected to have a major impact on road pricing in Switzerland in the future. The research team deals with the development and standardization of road pricing systems since 1996 and intensely participates in the development of the European electronic toll service in the framework of various projects. This guarantees a well-focussed and efficient management of the project.