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GIS-Driven Multi-Criteria Assessment of Rural Settlement Patterns and Attributes in Rwanda’s Western Highlands (Central Africa)

Author

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  • Athanase Niyogakiza

    (School of Architecture, Chang’an University, Xi’an 710061, China
    Karongi College, Rwanda Polytechnic, Karongi P.O. Box 85, Rwanda)

  • Qibo Liu

    (School of Architecture, Chang’an University, Xi’an 710061, China)

Abstract

This study investigates rural settlement patterns and land suitability in Rwanda’s Western Highlands, a mountainous region highly vulnerable to geohazards like landslides and flooding. Its primary aim is to inform sustainable, climate-resilient development planning in this fragile landscape. We employed high-resolution satellite imagery, a Digital Elevation Model (DEM), and comprehensive geospatial datasets to analyze settlement distribution, using Thiessen polygons for influence zones and Kernel Density Estimation (KDE) for spatial clustering. The Analytic Hierarchy Process (AHP) was integrated with the GeoDetector model to objectively weight criteria and analyze settlement pattern drivers, using population density as a proxy for human pressure. The analysis revealed significant spatial heterogeneity in settlement distribution, with both clustered and dispersed forms exhibiting distinct exposure levels to environmental hazards. Natural factors, particularly slope gradient and proximity to rivers, emerged as dominant determinants. Furthermore, significant synergistic interactions were observed between environmental attributes and infrastructure accessibility (roads and urban centers), collectively shaping settlement resilience. This integrative geospatial approach enhances understanding of complex rural settlement dynamics in ecologically sensitive mountainous regions. The empirically grounded insights offer a robust decision-support framework for climate adaptation and disaster risk reduction, contributing to more resilient rural planning strategies in Rwanda and similar Central African highland regions.

Suggested Citation

  • Athanase Niyogakiza & Qibo Liu, 2025. "GIS-Driven Multi-Criteria Assessment of Rural Settlement Patterns and Attributes in Rwanda’s Western Highlands (Central Africa)," Sustainability, MDPI, vol. 17(14), pages 1-24, July.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:14:p:6406-:d:1700622
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    References listed on IDEAS

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