Editorial Comment:

Abstract: An efficient transport system is a crucial precondition for economic development and an asset in international mobility. Mobility of passengers and transport of goods are considered key elements for a modern society. The transport sector is also a sector of continuous technological innovation. However, there is considerable uncertainty surrounding future transport technology and policy, as well as a large variation in ways to deal with this uncertainty. With regard to the latter it may be helpful to use more than one foresight method, e.g. a combination of methods each with a different emphasis on expertise, creativity and interaction with actors. Such a multiple method approach allows for the identification of those futures or future developments that are robust. This paper provides an introduction to the topic of transport innovation as well as providing a context for the four papers which follow in this special issue, illustrating the importance of taking such a multiple method approach.