University of California Transportation Center

Transportation planning has been concentrated on demand management as detailed in recent legislation such as the Intermodal Surface Transportation Efficiency Act (ISTEA). With the advent of Intelligent Vehicle Highway Systems (IVHS) and different management measures such as carpooling, vanpooling and telecommuting, transportation modeling needs to incorporate analyses on these policy measures. Recent computer technology offers versatile functionality to model and evaluate impacts of these policies Geographic information systems (GIS), as an integrating technology, has been increasingly used by DOT to handle transportation modeling and planning needs.