Urban Flood Modelling: A Geospatial Evaluation of Drainage Systems for Resilient City Planning in Lusaka

Authors

  • Dr. Penjani Hopkins Nyimbili University of Zambia, Department of Geomatic Engineering, Lusaka, Zambia
  • BEng. Mukuka Himunga Mulenga University of Zambia, Department of Geomatic Engineering, Lusaka, Zambia
  • MSc. Bwalya J. Kawimbe University of Zambia, Department of Geomatic Engineering, Lusaka, Zambia
  • Dr. Faustin A. S. Banda University of Zambia, Department of Geomatic Engineering, Lusaka, Zambia
  • Prof. Dr. Erastus Misheng’u Mwanaumo University of South Africa (UNISA), Department of Civil Engineering, College of Science, Engineering and Technology, Pretoria, 0003, South Africa
  • Prof. Dr. Wellington Didibhuku Thwala Faculty of Engineering, Built Environment and Information Technology, Walter Sisulu University, Eastern Cape, South Africa

DOI:

https://doi.org/10.38027/ICCAUA2024EN0093

Keywords:

Urban Flood Model, Geographic Information System (GIS), Hydrostatic Potential Surface, Multi-Criteria Decision Analysis (MCDA), Disaster Risk Planning

Abstract

This study presents a flood modelling approach aimed at enhancing planning strategies to mitigate flooding impacts in Lusaka
City. By integrating factors such as slope, hydrostatic potential surface, and the built environment, a predictive flood model
was developed. The methodology involved using Geographic Information System (GIS) techniques and digital elevation
models (DEMs) to assess geological features and manmade structures. Precipitation patterns and water demand analyses
aided in computing a hydrostatic potential surface through watershed delineation. The generated flood model produced
comprehensive flood maps illustrating water drainage in Lusaka, identifying vulnerable areas using Multi-Criteria Decision
Analysis (MCDA) techniques. Results highlight the complex interaction between geographical features and human
infrastructure in flood dynamics. This study contributes to informing zoning policies and disaster response planning, aiming
to reduce the impact of future flooding events.

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Published

2024-06-30

How to Cite

Nyimbili, P. H., Mulenga, M. H., Kawimbe, B. J., Banda, F. A. S., Mwanaumo, E. M., & Thwala, W. D. (2024). Urban Flood Modelling: A Geospatial Evaluation of Drainage Systems for Resilient City Planning in Lusaka. Proceedings of the International Conference of Contemporary Affairs in Architecture and Urbanism-ICCAUA, 7(1), 475–493. https://doi.org/10.38027/ICCAUA2024EN0093

Issue

Vol. 7 No. 1 (2024): Vol. 7 No. 1 (2024): 7th International Conference of Contemporary Affairs in Architecture and Urbanism (ICCAUA2024)

Section

Sustainability and Urban Design

License

Copyright (c) 2024 Dr. Penjani Hopkins Nyimbili, BEng. Mukuka Himunga Mulenga, MSc. Bwalya J. Kawimbe, Dr. Faustin A. S. Banda, Prof. Dr. Erastus Misheng’u Mwanaumo, Prof. Dr. Wellington Didibhuku Thwala

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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