Integration of GIS - T and IVHS : Key to Success

Introduction Geographic information systems (GIS) have developed rapidly in recent years for many uses and users. Our experience in the United States of America is that GIS for Transportation (GIST) systems have become one of the standard tools which many State departments of transportation, as well as Federal transportation agencies, rely. In the last two or three years, Intelligent Vehicle Highway Systems (IVHS) have also exploded on the scene. In this paper definitions for GIS, GIST , and IVHS are presented, the reasons for the recent development of these systems discussed, and the opportunities for additional benefits through the integration of GIST and IVHS efforts suggested. Throughout, the principle focus of this paper is on the institutional and organizational aspects of development and use of GIST and IVHS systems.