Three questions are addressed in this article. What are the problems to which TSM is addressed? How great is the challenge of integrating the new planning requirements that have been imposed on urban areas for the past several years? And, what are the constituencies of TSM? It appears at first glance that congestion is the primary problem and that TSM is the new traffic engineering strategy for alleviating congestion. However, issues such as increased equity, increased amenity, air quality improvements, and energy conservation also appear to be primary objectives. It is not always clear the extent to which TSM is addressed explicitly to these other issues on the extent to which it is an instrument for dealing with them. With all of the various types of planning--highway, transit, paratransit, long- and short-term capital & operating--to what extent is this proving to be a nearly insuperable burden or one that is proving to be quite managable in urban areas? It is noted that in those regions that still have major highway, transit, and capital-intensive transit projects, policymakers and planners are finding it difficult to focus on TSM and paratransit kind of issues. TSM, it is noted, is an initiative that has only succeeded insofar as it has pursued modest objectives that have not inconvienced significant numbers of drivers or voters and not significantly changed the basic urban transportation system. Such constituencies as the downtown businesses, central city governments, and transit authorities may eventually enable TSM to try more bolder initiatives and become more pervasive with respect to the nature of the urban transportation system.

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  • Supplemental Notes:
    • From TRB Special Report No. 172, Transportation System Management, proceedings of a conference held November 7-10, 1976, conducted by the Transportation Research Board, and sponsored by the Urban Mass Transportation Administration and the Federal Highway Administration of the U.S. DOT in cooperation with the Institute of Transportation Engineers. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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    Transportation Research Board

    500 Fifth Street, NW
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  • Authors:
    • Altshuler, Alan A
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  • Publication Date: 1977

Media Info

  • Media Type: Digital/other
  • Pagination: pp 157-158
  • Serial:

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Filing Info

  • Accession Number: 00179103
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Sep 14 1981 12:00AM