A specific approach is described here which will help resolve some of the problems associated with the integration of computerized methodologies such as the gravity model within a structure planning and monitoring process. Experience suggests that it is more meaningful to use figures of sales estimates (produced by the gravity model) against detailed subjective knowledge of particular centers, to establish a realistic interpretation of the relative changes occurring in the system. This approach can be extended in the structure plan situation where overall retail floor space distribution options have to be considered. Various sub models are useful in applying the model output to the evaluation of retail floor space distributions. In the model described here, floorspace is used as the attractor, and an exponential function for the deterrant effect of distance. Expenditure to be distributed to the retail centers is generated from household data and expenditure per household ratios. The calibration procedures adopted avoid the dangers of a trivial solution. The details are described of the structural indicator submodels, the modelling process, the application of the modelling techniques, and the establishment of a monitoring system.

  • Supplemental Notes:
    • Proceedings of Seminar E, Urban and Regional Models for Public Policy Analysis, Summer Annual Meeting, University of Warwick, England, July 1975.
  • Corporate Authors:

    Planning and Transport Res and Computation Co Ltd

    167 Oxford Street
    London W1R 1AH,   England 
  • Authors:
    • Brady, R
    • Brockman, R
    • Talbot, J
  • Publication Date: 1975-7

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Filing Info

  • Accession Number: 00149524
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Mar 30 1977 12:00AM