For people with mobility constraints, the conditions offered by pedestrian environments are crucial for their ability to remain independent and self-sufficient. Mobility is also a key factor to maintain people actively involved in the community. Taking into account only the physical characteristics of urban spaces, the goal of the present work is to analyse the factors that limit the circulation of people with mobility constraints and to map those conditions in central urban spaces. The assessment was performed in agreement with the standards specified in the Portuguese Law. A multi-criteria model was developed to evaluate the compliance of urban spaces with those standards. Its integration within a GIS platform was performed in order to implement a spatial analysis of the results. A case study was conducted in a central area of the city of Braga, Portugal. Maps showing levels of compliance with the standards were produced and the results are discussed.