An Empirical Study of Some Spatial Interaction Models
- 1 February 1976
- journal article
- research article
- Published by SAGE Publications in Environment and Planning A: Economy and Space
- Vol. 8 (1), 23-41
- https://doi.org/10.1068/a080023
Abstract
This paper attempts to focus attention away from a mathematical and theoretical perspective to one where empirical and statistical aspects can assume greater significance. The need for this change of emphasis is demonstrated by the results of an empirical study of a selection of nine spatial-interaction models. Not only do the theory-based models fail to achieve significantly better levels of performance than some empirically derived models, but both types of model fail to achieve satisfactory levels of descriptive performance. These models are shown to be sensitive to the choice of calibration procedure and various kinds of errors in the constant and independent variables. It is suggested that the use of these models should always be accompanied by estimates of confidence limits, and that there is an urgent need for the development of new model designs which can at least provide accurate descriptions of observed reality.Keywords
This publication has 8 references indexed in Scilit:
- Trip Distribution and DisaggregationEnvironment and Planning A: Economy and Space, 1975
- Theoretical requirements for calibrating gravity modelsTransportation Research, 1974
- Insoluble problems in shopping model calibration when the trip pattern is not knownRegional Studies, 1973
- Approaches to Residential Location Modelling 1: Urban Ecological and Spatial Interaction Models (A Review)Environment and Planning A: Economy and Space, 1973
- The Calibration of Gravity, Entropy, and Related Models of Spatial InteractionEnvironment and Planning A: Economy and Space, 1972
- The calibration of trip distribution models with exponential or similar cost functionsTransportation Research, 1971
- The Calibration of Trip Distribution ModelsEnvironment and Planning A: Economy and Space, 1969
- Some Tests for HomoscedasticityJournal of the American Statistical Association, 1965