Abstract
There are important social changes that are influencing the way transport is now viewed. In particular, there are concerns that current trends in transport are not sustainable over the long term. This paper describes some of the main forces for social change and the way that they interact with transportation. It highlights a number of key areas were conceptual research work could prove advantageous and considers institutional meachanisms that would foster, in particular, transatlantic initiatives in these fields. (A)