A: A sidewalk network for the city of Barcelona was constructed using data from OpenStreetMap, as well as municipal and regional data sources. Edges of the network were annotated with various attributes relevant to walkability, namely: width, slope, and pedestrian-car accident hazard level. Further, a variety of geotagged services and amenities were assigned to network edges, and population was assigned to nodes. B: The attributed network allows us to remove edges that do not meet certain requirements for pedestrians…
