In any urban center the commuting distances are a function of the spatial structure of the center and of the characteristics of the commuters. In this paper theoretical relationships between commuting distances and distances of residences to city centers are derived for monocentric and polycentric cities. These relationships are then linked to the sociological determinants of commuting distances. An econometric model encompassing both spatial structure variables and social variables is constructed and estimated using data for sixteen urban centers. Gender differences are focused upon. The expansion method is used.
We discuss the distance to shopping in the context of three fundamental theories: The Optimal City Theory, the Central Business District Theory and a Cost-Benefit Theory. Each is described and estimated separately by econometric models. The three theories are combined in a final model using the expansion method. The final model, including all three theories, is based on enquiry data from 15 Danish towns.
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