Abstract

This article analyzes the impact of public transport system routes, road and pedestrian infrastructure on the accessibility of commune 10 of San Juan de Pasto, Nariño, Colombia. Through a geospatial approach and using quantitative data from the Geographic Information System (GIS), critical areas were identified in terms of accessibility and urban connectivity. The study evaluated the road infrastructure according to its degree of intervention, classified the platforms by their width and analyzed the public transport routes according to their frequency and coverage. The results reveal that more than 75% of the areas evaluated present critical conditions in road infrastructure, while more than 90% of the areas do not have adequate platforms to guarantee pedestrian accessibility. In addition, it was determined that more than 52% of the commune lacks access to public transport routes with sufficient frequencies. These deficiencies show inequalities in mobility that significantly affect the quality of life of the inhabitants. It is concluded that it is urgent to implement public policies aimed at strategic planning, prioritizing investments in road and pedestrian infrastructure, and optimizing the frequency and coverage of public transport. This study provides key tools for decision-making, facilitating the design of strategies that promote equity, sustainability and connectivity in intermediate urban contexts.