Calibrating a Residential Location Model for Nineteenth-Century Philadelphia

S H Putman
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S H Putman: University of Pennsylvania, Philadelphia, Pa 19174, USA

Environment and Planning A, 1977, vol. 9, issue 4, 449-460

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.

Date: 1977
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Persistent link: https://EconPapers.repec.org/RePEc:sae:envira:v:9:y:1977:i:4:p:449-460

DOI: 10.1068/a090449

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