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Urban Planning in 3D with a Two-tier LUTI model

Author

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  • Flora Roumpani
  • Joel Dearden
  • Alan Wilson

Abstract

The two-tier Lowry model brings dynamic simulations of population and employment directly into the planning process. By linking regional modelling with neighbourhood design, the framework enables planners to explore how alternative planning scenarios may evolve over time. The upper tier captures regional flows of people, jobs, and services, while the lower tier allocates these to fine-grain zones such as neighbourhoods or parcels. Implemented in CityEngine, the approach allows interactive visualisation and evaluation of multi-scale scenarios. A case study in South Yorkshire (UK) illustrates how regional forecasts can be translated into local design responses, connecting quantitative modelling with 3D spatial planning.

Suggested Citation

  • Flora Roumpani & Joel Dearden & Alan Wilson, 2025. "Urban Planning in 3D with a Two-tier LUTI model," Papers 2510.20992, arXiv.org.
    • Handle: RePEc:arx:papers:2510.20992
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    File URL: http://arxiv.org/pdf/2510.20992
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    References listed on IDEAS

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    1. Flora Roumpani, 2022. "Procedural Cities as Active Simulators for Planning," Urban Planning, Cogitatio Press, vol. 7(2), pages 321-329.
    2. Flora Roumpani, 2022. "Procedural Cities as Active Simulators for Planning," Urban Planning, Cogitatio Press, vol. 7(2), pages 321-329.
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    1. Roumpani, Flora & Wilson, Alan, 2025. "Urban Planning in 3D with a Two-tier LUTI model," SocArXiv d4msk_v1, Center for Open Science.
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