A PROPOSED METHOD FOR SYSTEM-WIDE TDM POLICY ANALYSIS

Many cities in this world are facing the difficulties of providing enough street and highway system to meet travel demand. However, plan, design and construction of road systems usually require plenty of time and huge amounts of budget to be accomplished. Therefore, even though a city allocates its budget for construction of planned streets every year, the desired level of service cannot be experienced during the construction period. In some cities, it is almost impossible to expand existing road space or to build new road systems due to lack of available land for new street and higher cost of land expropriation. Because of such limitations of road supply, many cities in the world tend to shift transportation policies from the predict-and-provide approach to the predict-and-prevent approach. The predict-and-prevent approach can be represented by transportation demand management (TDM) policies. TDM's are program that are designed to maximize the people-moving capability of the transportation system by increasing the number of persons in a vehicle, or by influencing the time of, or need to travel. TDM policies also try to redistribute travel demand in space and time. Usually, many large cities in the world adopt several kinds of TDM policies at the same time and applies them at several different areas within the city. The magnitude of impacts of the composite TDM policies in the city depends on type, intensity, and spatial deployment of the policies. The impacts of the composite TDM policies on citywide transportation systems need to be evaluated before policy implementation instead of just myopic or sub-area specific impacts. This study tries to show some possibilities such that a myopic view analysis of TDM policies might derive to wrong decision making in view of system-wide efficiency.

  • Supplemental Notes:
    • Full conference proceedings available on CD-ROM, ISBN 0-935403-48-5.
  • Corporate Authors:

    Institute of Transportation Engineers (ITE)

    Washington, DC  United States 
  • Authors:
    • Kim, In-Tai
    • Hwang, K Y
    • Eom, J K
  • Conference:
  • Publication Date: 2000

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00809266
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 27 2001 12:00AM