The Institute of Transport Economics (TOI) is a national institution for transport research and development. The main objectives of the Institute are to carry out applied research on issues connected with transport and to promote the application of research results by advising the authorities, the transport industry and the public at large. Its sphere of activity includes most of the current major issues in road, rail, sea and air transport.

The Institute is also involved in international cooperation within the transport sector. Special emphasis is placed on the practical application of research results, and most of the studies and projects carried out here are commissioned. In Norway most of the clients are central government bodies and local authorities, with some commissions from the private sector. The Institute was set up in 1958. In 1986 the Institute became a private, independent research foundation.

TOI is/was  involved in CITYLAB, SMARTRAIL, SAfetyCUBE, SCORE, InDeV, SAFEWAY (GIS-based infrastructure management system for optimized response to extreme events of terrestrial transport networks) and VIRTUAL (Open access virtual testing protocols for enhanced road users safety).

TOI has published the following document: