Analysis of walkability surrounding the future bus rapid transit lines in the city of Coimbra

Abstract

This study evaluates the walkability around the bus rapid transit (BRT) system, Metrobus, which will commence operations in Coimbra, Portugal, in 2025. As part of the first phase of an electric mobility system, Metrobus will traverse the city along two primary axes, reshaping urban mobility patterns. Given this shift, assessing the pedestrian environment around BRT stations is crucial to anticipate potential increases in walking trips. This research employs the OS-WALK-EU tool, which operationalises walkability through four sub-indices – amenity proximity, pedestrian-network permeability, accessible green/blue space and residential density – while incorporating a slope-dependent reduction of the effective pedestrian catchment. Using open data sources, the study demonstrates that OS-WALK-EU is an effective method for assessing walkability, with potential applications in other urban contexts. The findings reveal significant asymmetries in walkability along the BRT corridors, highlighting areas where infrastructure improvements are needed to enhance pedestrian accessibility. These insights are particularly relevant for city planners and policymakers, as they underscore the importance of targeted urban interventions to maximise the benefits of the new mobility paradigm. Ensuring high-quality pedestrian access to Metrobus stations will be essential for leveraging sustainable mobility and fostering a more walkable and connected urban environment in Coimbra.