  Obstacles on the sidewalk often block the path, limiting passage and
resulting in frustration and wasted time, especially for citizens and visitors
who use assistive devices (wheelchairs, walkers, strollers, canes, etc). To
enable equal participation and use of the city, all citizens should be able to
perform and complete their daily activities in a similar amount of time and
effort. Therefore, we aim to offer accessibility information regarding
sidewalks, so that citizens can better plan their routes, and to help city
officials identify the location of bottlenecks and act on them. In this paper
we propose a novel pipeline to estimate obstacle-free sidewalk widths based on
3D point cloud data of the city of Amsterdam, as the first step to offer a more
complete set of information regarding sidewalk accessibility.
