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Optimisation Methods and the Classification of City Structure: Theory and Empirical Testing

Author

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  • J A Black

    (Department of Transport Engineering, School of Civil Engineering, University of New South Wales, Kensington, NSW 2033, Australia)

  • A Katakos

    (Bowenfels Works Office, Department of Main Roads New South Wales, NSW 2790, Australia)

Abstract

City structure is taken to mean the size and shape of the city and the spatial concentration or dispersal of homes and workplaces. To classify differing structures, a land-use and transport interaction method, based on the classical transportation problem of operations research, is used. The theoretical upper and lower bounds to the amount of journey-to-work travel in the optimal solution leads to the calculation of the urban consolidation index. The behaviour of this index is examined for square and rectangular city shapes of differing sizes and distributions of workplaces. The method is then tested empirically with data on the distribution of homes and workplaces collected for fourteen cities in Australia and East and Southeast Asia ranging in size and land-use density. The relationship between optimisation theory and transport policy is discussed. The approach should prove to be a suitable quantitative method to examine the question of the efficiency of travel in cities both with different concentrations of activity and with different travel behaviour.

Suggested Citation

  • J A Black & A Katakos, 1987. "Optimisation Methods and the Classification of City Structure: Theory and Empirical Testing," Environment and Planning B, , vol. 14(1), pages 93-107, March.
    • Handle: RePEc:sae:envirb:v:14:y:1987:i:1:p:93-107
    DOI: 10.1068/b140093
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    Cited by:

    1. Loo, Becky P.Y. & Chow, Alice S.Y., 2011. "Jobs-housing balance in an era of population decentralization: An analytical framework and a case study," Journal of Transport Geography, Elsevier, vol. 19(4), pages 552-562.
    2. Chow, Alice S.Y., 2016. "Spatial-modal scenarios of greenhouse gas emissions from commuting in Hong Kong," Journal of Transport Geography, Elsevier, vol. 54(C), pages 205-213.
    3. Suzuki, Tsutomu & Lee, Sohee, 2012. "Jobs–housing imbalance, spatial correlation, and excess commuting," Transportation Research Part A: Policy and Practice, Elsevier, vol. 46(2), pages 322-336.

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