Examining Spatial Concordance of Knowledge Aggregated AHP TOPSIS and Random Forest for Electric Vehicle Charging Site Suitability
Published 2026-10-04
Keywords
- Electric vehicle charging infrastructure,
- AHP-TOPSIS,
- Random Forest validation,
- Expert elicitation
Copyright (c) 2026 Shahrier Main Mridul (Author)

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
Abstract
Electric vehicle (EV) charging infrastructure planning in data-scarce megacities is often constrained by limited spatial data and expert-driven decision models whose underlying assumptions are rarely validated. This study presents an integrated GIS-based decision-support framework for identifying optimal EV charging locations in Dhaka, Bangladesh — a 22-million-resident megacity targeting 30% EV penetration by 2030, by combining expert-elicited Analytic Hierarchy Process (AHP) weighting with the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). Unlike conventional GIS-MCDM studies, the proposed framework systematically evaluates criterion collinearity and assesses the spatial concordance between expert-derived suitability patterns and a machine-learning model using Random Forest with spatial cross-validation. Fourteen spatial criteria derived from open-access datasets and weighted by eleven domain experts were used to generate a 100-m suitability map. The analysis identified fifteen priority charging zones, with the Tejgaon–Hatirjheel corridor ranking highest. Results showed strong agreement between expert- and machine-learning-derived suitability surfaces (Spearman's ρ = 0.968; top-zone overlap = 73.8%), while revealing substantial collinearity between transit and fuel station proximity, highlighting a potential source of bias in conventional MCDM applications. Built entirely on open data, the proposed framework offers a transparent, reproducible, and transferable methodology for EV charging infrastructure planning in data-constrained cities.
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