Social impacts and road safety in intermodality: Case study of the Ayacucho Tram in Medellín-Colombia

This study evaluates the social impact and road safety implications of intermodality between the Ayacucho Tram and active transport in Medellín-Colombia. The analysis is based on a mixed-methods approach, combining open data on road incidents (2008–2023) with a 2024 user survey to assess key metrics including accessibility, safety perceptions, and satisfaction. A logistic regression model was employed to determine the main predictors of perceived accessibility improvements. The model identifies three user characteristics as key predictors of a positive perception of improved accessibility: being male, having a higher educational level, and using walking as a primary mode of transport. These findings highlight the Ayacucho Tram as a key axis of urban connectivity that supports intermodality with active mobility — particularly cycling — while also revealing persistent concerns related to road safety, especially in cycling infrastructure. This intermodal integration enhances travel times, connectivity, and access, contributing to sustainable urban mobility in Medellín and offering a comprehensive perspective on the interaction between public transport and active mobility.