Peat, Marwick, Mitchell & Co. (PMM & CO) study compares and evaluates operational or near operational urban transportation planning models to determine their purposes, effectiveness, scope, and cost. This report provides summaries and detailed descriptions of models suitable for a variety of analytical purposes. The categories of urban transportation planning models reviewed by PMM&Co. were demand, network, cost-benefit/impact, and land use. The classification of models into these categories in useful for a systematic presentation. A model may, however, fall into more than one classification, and all models interact with each other in the urban transportation planning process. The models reviewed are therefore discussed in two ways: the body of the report considers their interrelationships, and Appendixes A through D review the models individually. It was concluded that current urban transportation planning techniques usually require an extensive data base, coding of detailed networks, and use of a costly set of computer programs. Approximately 70 percent of urban planning funds are devoted to data and model preparation, with less than 20 percent devoted to plan evaluation and testing. Because of the onerous nature of the techniques, the analysis of an urban transportation plan requires from 12 to 24 calendar months. It was concluded that the most meaningful direction for analytical technique development would be to emphasize sketch planning models requiring less computational expenditure or data base development than current models. This would allow a faster analysis "turnaround" time, resulting in a planning procedure which is more responsive to issues and problems. More resources could then be apportioned to exploring and evaluating a large number of alternatives. PMM&Co. made the following recommendstions: (1) An aggregate, instead of detailed, modeling approach would place less demand on excessive data bases or the coding of detailed networks, and in general would cut down on the analysis resources devoted to model preparation, (2) An interactive planning technique, such as use of graphic terminals, on which the aggregate models could be implemented, promises to be a far more effective means to interface between the analyst, the model, and the decision-maker than the batch-processing systems currently used. Examples of these approaches can be found in the development of the TRANS Model and the UMTA (Urban Mass Transportation Administration) Transportation Planning System, both of which are reviewed in this report.

  • Supplemental Notes:
    • Prepared For Department of Transportation, Transportation Systems Center, Transportation Systems Concept Directorate, 55 Broadway, Cambridge, Massachusetts 02142
  • Corporate Authors:

    Peat, Marwick, Mitchell and Company

    1025 Connecticut Avenue, NW
    Washington, DC  United States  20036
  • Authors:
    • Chen, Yao
  • Publication Date: 1973-4

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 242 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00262984
  • Record Type: Publication
  • Report/Paper Numbers: DOT-TSC-496 Final Rpt.
  • Files: TRIS
  • Created Date: Nov 12 1981 12:00AM