Sharing data between GIS software (Arc/Info) and Traffic Demand Modeling Software (EMME/2) has long been an issue of interest to traffic engineers. A literature review and evaluation of current efforts on the data exchange is given in this paper. The authors also developed their own economical method to realize the data transform through Matlab programming. As an example, the road network of Lyon County, Minnesota is constructed by the integrated use of Arc/Info, EMME/2, Enif, and the Matlab program. The combined use of these programs achieved the expected objectives through a practical and economical way. The method can be utilized by other EMME/2 users who have a similar need.