Abstract
In Norway, the work on multimodal travel information services is based on ARKTRANS, the national framework architecture for multimodal intelligent transportation systems (ITS). ARKTRANS is harmonized across all transport modes, and arranges for services supporting all phases of door-to-door travel. This paper describes the process towards such services and how they are enabled by ARKTRANS. As a result of ARKTRANS, the experience gained in pilot projects providing new and improved travel information services can be transferred into generic knowledge and used in national, regional and local travel planners. Stakeholder involvement, use of existing solutions and the iterative evolution of services are described as well as the use of the architecture.