Abstract

Abstract This study aims to evaluate the spatial suitability and determine the improvement priorities of local roads within the Public Infrastructure, Facilities, and Utilities ( PSU ) Program in relation to the Regional Spatial Plan ( RTRW ) of Sumbawa Regency, Indonesia. The research integrates Geographic Information System (GIS) and Analytic Hierarchy Process (AHP) methods as a multi-criteria analysis framework that combines spatial data and expert judgment. Five main criteria were considered: population density, accessibility to main roads, suitability with the RTRW zoning, slope zoning, and disaster risk. The relative importance of each criterion was derived from expert questionnaires involving ten respondents representing technical agencies and academic institutions, resulting in a Consistency Ratio (CR) of 0.0379, indicating a high level of consistency. Spatial overlay analysis revealed that 72% of PSU local road improvement under the PSU Program sites were located within residential zones (suitable) consistent with the RTRW , 19% were in transitional areas (moderately suitable), and 9% were situated outside residential or protected zones (Unsuitable). The AHP analysis showed that population density had the highest priority weight (0.46), followed by accessibility (0.21), zoning suitability (0.13), land slope (0.08), and disaster risk (0.05). The spatial scoring results indicated that Sumbawa, Unter Iwes, and Labuhan Badas Districts have the highest priority for PSU improvement, while Ropang, Lantung, and Orong Telu Districts ranked lower due to steep topography and low population density. Overall, the integration of GIS and AHP proved effective in providing a scientific and objective basis for PSU improvement decision-making aligned with spatial planning and regional characteristics. This approach can serve as a strategic planning model to enhance the efficiency, locational accuracy, and sustainability of residential infrastructure improvement in Sumbawa Regency and similar regions across Indonesia.

Concepts :

Access to Document

SDGs

Citations by Year