Wikipedia
Rejsekort
Rejsekort (Official translation: TRAVEL CARD) is an electronic ticket system for public transport in Denmark. The system is a collaborative work between DSB, HUR, Ørestadsselskabet, and various regional bus companies, and work on it started on August 18, 2003. In June 2005, the Thales Group and Accenture were chosen as suppliers.
The total cost of the system will be between €200 and €270 million.