Urban Green Infrastructure Planning for the Bangkok Metropolitan Region: An Empirical Study for Greenspace Expansion

Urban greenspaces play a crucial role in enhancing the standard of living in urban areas, offering recreational havens and fostering ecological equilibrium. The Green Bangkok 2030 Project drives collaboration among the public, private, and civil sectors, aiming to expand recreational spaces and contribute to ecological balance, thereby enhancing the overall city life quality. To understand optimal locations, this study employs a comprehensive spatial land suitability and accessibility assessment, integrating Analytic Hierarchy Process (AHP) and Geographic Information System (GIS) modelling based on fourteen criteria identified. Emphasizing the significance of accessibility and traffic conditions, the study assesses physical accessibility, underscoring the importance of convenient green space access for urban dwellers. The study highlights the southern BMA, distant from dense urban areas, as more suitable for green space development and the integrated approaches in land suitability analysis, positing the AHP model as effective in identifying suitable urban greenspace sites, fostering amenity-led metropolitan growth.