COMPUTERIZED METHOD FOR UPDATING PLANNING DATA BASES USED IN TRAVEL DEMAND FORECASTING

Data bases that have been created for use in urban transportation studies describe the urban environment for only one point in time. With the exception of simple manual techniques, no provision has been made for updating these planning data bases on a continuing basis. The objective of this study was the design and implementation of a computerized information system capable of supporting the continuing socioeconomic data requirements for the travel demand forecasting phase of the urban transportation planning process. Agency operating and administrative records from state and local governments serve as system input. The system performs a geographical analysis that determines the home base locations for these records and, hence, the data that they contain. Subsequent to this geographical analysis, the system aggregates the data on a small area basis required by the travel demand models in the planning process. Requirements for data confidentiality established by law for certain socioeconomic data led to the development of a mathematical model that predicts the income variable. The model is based on harmonic analysis and is specified as a Fourier series. The transportation planning information system developed during the course of this research is capable of synthesizing, on a small area basis, the demographic and employment data used in the transportation planning process for urban study areas that have populations less than 500,000. This conclusion is supported by the findings from system implementation and testing in Greensboro, North Carolina.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1983/928/928-004.pdf
• Summary URL:
  https://scholar.google.com/scholar_lookup?title=COMPUTERIZED+METHOD+FOR+UPDATING+PLANNING+DATA+BASES+USED+IN+TRAVEL+DEMAND+FORECASTING&author=L.+McPherson&author=C.+Heimbach&author=L.+Goode&publication_year=1983
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309036186
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Transportation Information Systems and Data Requirements. 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.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • McPherson, Larry W
  • Heimbach, Clinton L
  • Goode, Larry R
• Publication Date: 1983

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 27-35
• Monograph Title: IMPROVING THE QUALITY AND EFFICIENCY OF TRANSPORTATION DATA
• Serial:
  • Transportation Research Record
  • Issue Number: 928
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Coding systems; Data collection; Databases; Demographics; Employment; Forecasting; Geographic information systems; Income; Information processing; Mathematical models; Socioeconomic factors; Transportation planning; Travel demand; Urban transportation
• Old TRIS Terms: Socioeconomics
• Subject Areas: Economics; Highways; Operations and Traffic Management; Planning and Forecasting; Public Transportation; Society; I10: Economics and Administration;

Filing Info

• Accession Number: 00386405
• Record Type: Publication
• ISBN: 0309036186
• Files: TRIS, TRB
• Created Date: Jun 28 1984 12:00AM