Implementation Low Distortion Projection (LDP) Model for Sustainable Cities and Communities in Indonesia

Abstract The Sustainable Development Goals (SDGs) emphasize the creation of inclusive, safe, resilient, and sustainable cities and communities. The spatial plan map is a key instrument in achieving sustainable development goals and it requires precise geospatial information with minimal distortion, to guide planners in urban development. Its accuracy is needed as the basis for making good planning decisions. A better map projection enhances the accuracy of the spatial plan map. The main problem in map projection is the depiction of the curved plane to the flat plane. The transformation process of the curved plane causes distortion of earth information, which includes distance, direction, shape, and area. Low Distortion Projection (LDP) offers a solution by reducing the discrepancy between distances on maps and the actual surface of the Earth. While complete elimination of distortion is impossible, LDP optimally minimizes it by accounting for both Earth’s curvature and the height above the ellipsoid. This study introduces LDP as a modern mapping approach for urban and community development, with a case study focusing on South Kuta, Badung Regency, Bali, where the area is an international tourist destination that has a very strategic role in the constellation of regional development and becomes a national tourism showcase. Quantitative approach with mathematical method that known as LDP Method 2 is used in this study. Findings from this research suggest that LDP can effectively reduce linear distortion to a range of ±20 ppm, offering a significant improvement over existing methods. Implementing LDP in Indonesia could lead to more accurate base maps, aiding sustainable development efforts.