THE SUBAREA FOCUSING CONCEPT FOR TRIP DISTRIBUTION IN THE PUGET SOUND AREA

This paper explores one method of reducing the computational costs associated with urban travel demand modeling. The technique investigated is a data base approach called subares focusing. The distinction between this technique and other data simplification methods is in the detailed analysis of only a portion of a study area and the simultaneous presence of several levels of areal detail in the data base. A computerized technique for subarea focusing was developed and used for a sample trip distribution application to data from the Puget Sound region. The procedure was not unduly expensive in either manpower or computer time. When aggregate data sets were used to obtain travel demand predictions, substantial savings in computer time were realized. The error analyses indicated some sacrifice in accuracy, but not a serious sacrifice. the results appear to justify continued refinement of the aggregation procedure and investigation of the effects of subarea focusing on other demand models. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/610/610-007.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=THE+SUBAREA+FOCUSING+CONCEPT+FOR+TRIP+DISTRIBUTION+IN+THE+PUGET+SOUND+AREA&author=D.+Miller&author=N.+Nihan&publication_year=1976
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Passenger Travel Demand Forecasting. 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
• Authors:
  • Miller, Donald G
  • Nihan, Nancy L
• Publication Date: 1976

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 37-43
• Monograph Title: Passenger travel demand forecasting
• Serial:
  • Transportation Research Record
  • Issue Number: 610
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Computer programs; Costs; Databases; Mathematical models; Travel demand; Trip distribution; Urban transportation
• Uncontrolled Terms: Models
• Geographic Terms: Puget Sound Region
• Subject Areas: Finance; Highways; Operations and Traffic Management; Planning and Forecasting; Public Transportation;

Filing Info

• Accession Number: 00157827
• Record Type: Publication
• ISBN: 0309025850
• Files: TRIS, TRB
• Created Date: Sep 28 1981 12:00AM