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Calibrating a Residential Location Model for Nineteenth-Century Philadelphia

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  • S H Putman

    (University of Pennsylvania, Philadelphia, Pa 19174, USA)

Abstract

The Disaggregated Residential Allocation Model (DRAM) is a modified Lowry derivative model which follows the Wilson entropy formulation. The model is a component of the Integrated Transportation and Land Use Package—ITLUP. As a part of ongoing work with DRAM, it has been calibrated for several US cities by use of conventional late twentieth-century data sets. Because of the work of the Philadelphia Social History Project a nineteenth-century data set for Philadelphia became available for use. This provided a unique opportunity to try calibrations of DRAM on this century-old data and thus attempt to validate the general structure of the model. The results of these calibrations suggest a rather high degree of descriptive validity and consistency with macro-behavioral theories of spatial allocation.

Suggested Citation

  • S H Putman, 1977. "Calibrating a Residential Location Model for Nineteenth-Century Philadelphia," Environment and Planning A, , vol. 9(4), pages 449-460, April.
    • Handle: RePEc:sae:envira:v:9:y:1977:i:4:p:449-460
    DOI: 10.1068/a090449
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    References listed on IDEAS

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    1. Walter Isard, 1942. "Transport Development and Building Cycles," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 57(1), pages 90-112.
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