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<p>In Sierra Leone, where the economy relies heavily on roads, &gt;86% of the road networks remain unpaved. Understanding their vulnerability to climate factors is crucial for effective adaptation and mitigation, given their vulnerability to climate stressors. In countries such as Sierra Leone, the challenging economic situation, coupled with expert constraints, makes developing affordable, user-friendly tools for assessing road vulnerability to climate change difficult. Therefore, this study developed a simple, cost-effective tool for climate risk and vulnerability assessment, providing insights into adaptation and mitigation measures. Existing open-source technology, integrating Quantum Geographic Information System and Quantum Field, were used for efficient field data collection, encouraging community participation and, thus, enhancing the validity of climate risk evaluations. This method gathered road asset condition data, alongside environmental and socioeconomic factors, linked to specific road aspects and their corresponding elements. Data analysis employed a multi-dimensional road vulnerability index combined with Microsoft Power BI (Microsoft Fabric) to quantify and visualize pertinent datasets, including climate patterns and infrastructure condition deficiencies, through interactive dashboards and reports. The results obtained have policy implications, as they provide evidence-based recommendations for integrating a vulnerability assessment framework into Sierra Leone’s road agency management system. This research aligns with Sierra Leone’s National Adaptation Plan and Nationally Determined Contributions and supports multiple UN Sustainable Development Goals, primarily Goals 9 (Industry, Innovation, and Infrastructure) and 13 (Climate Action, aiming to combat climate change effects). The participatory approach ensures inclusivity and stakeholder engagement, contributing to achieving Goal 17 by fostering collaboration among communities, practitioners, and policymakers.</p>

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An assessment of climate risks and vulnerabilities of unpaved secondary roads and resilient enhancement strategies in Sierra Leone

  • 期刊论文

  • 发表日期：

    2026年4月6日

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  • Phodie Musa Kamara,
  • Yaw Adubofour Tuffour,
  • Frank Baffour-Ata,
  • Daniel Atuah Obeng

摘要

In Sierra Leone, where the economy relies heavily on roads, >86% of the road networks remain unpaved. Understanding their vulnerability to climate factors is crucial for effective adaptation and mitigation, given their vulnerability to climate stressors. In countries such as Sierra Leone, the challenging economic situation, coupled with expert constraints, makes developing affordable, user-friendly tools for assessing road vulnerability to climate change difficult. Therefore, this study developed a simple, cost-effective tool for climate risk and vulnerability assessment, providing insights into adaptation and mitigation measures. Existing open-source technology, integrating Quantum Geographic Information System and Quantum Field, were used for efficient field data collection, encouraging community participation and, thus, enhancing the validity of climate risk evaluations. This method gathered road asset condition data, alongside environmental and socioeconomic factors, linked to specific road aspects and their corresponding elements. Data analysis employed a multi-dimensional road vulnerability index combined with Microsoft Power BI (Microsoft Fabric) to quantify and visualize pertinent datasets, including climate patterns and infrastructure condition deficiencies, through interactive dashboards and reports. The results obtained have policy implications, as they provide evidence-based recommendations for integrating a vulnerability assessment framework into Sierra Leone’s road agency management system. This research aligns with Sierra Leone’s National Adaptation Plan and Nationally Determined Contributions and supports multiple UN Sustainable Development Goals, primarily Goals 9 (Industry, Innovation, and Infrastructure) and 13 (Climate Action, aiming to combat climate change effects). The participatory approach ensures inclusivity and stakeholder engagement, contributing to achieving Goal 17 by fostering collaboration among communities, practitioners, and policymakers.