Multi-criteria spatial-based modelling for optimal alignment of roadway by-passes in the Tlokweng planning area, Botswana. Issue 2 (4th May 2022)

• Record Type: Journal Article
• Authors: Sekulic, Milan; Siljeg, Ante; Mansourian, Ali; Watson, Lisa; Cavric, Branko I.
• Is Part Of: Journal of spatial science. Volume 67:Issue 2(2022)
• Page Start: 237
• Page End: 254
• Publication Date: 2022-05-04
• Subjects: Spatial multi-criteria evaluation -- analytical hierarchy process -- weighted sum -- least-cost path -- one-at-a-time sensitivity analysis; Geographic information systems -- Periodicals; Cartography -- Periodicals; Surveying -- Periodicals; Geodesy -- Periodicals; Photogrammetry -- Periodicals; Cartography; Geodesy; Geographic information systems; Photogrammetry; Surveying; Periodicals; 526.05
• DOI: 10.1080/14498596.2020.1755731
• Languages: English
• ISSNs: 1449-8596

Abstract

ABSTRACT: In this study, Spatial Multi-Criteria Evaluation and the least cost path analysis were applied to find the optimal by-pass road alignment in the Tlokweng Planning Area in Botswana. One-At-a-Time sensitivity analysis and the statistical test for zero proportion were used to investigate the robustness of the entire model. Four alternative by-pass roads were produced stressing economic, environmental, and social suitability as well as trade-offs between the groups. The results showed that the social alternative performs best. Sensitivity analysis and statistical test for zero proportion revealed four criteria as sensitive.