Abstract: Decisions made by transportation planners and managers impact our daily lives, and these professionals increasingly rely on information technology to assist in their work. This application area provides numerous challenges for geographic information science. This paper begins by describing the dimensions of these challenges, and uses several scenarios to illustrate where we are now and where we may be going. The views of the future from the scenarios lead to a discussion of a series of research challenges and questions. These questions are framed within the 10 research challenges defined by the University Consortium for Geographic Information Science. The paper concludes with a discussion of the educational needs of the transportation community.