This uses the IHM data srouce to present accessible routes, check out the style.json
file in this repo.
The following overpass query is not in use right now, but was used in the past. The geojson source uses the following overpass turbo query exported as geojson:
(
way[highway=path][surface][surface!=dirt][surface!=grass][surface!=unpaved][surface!=mud][surface!=ground](area:3606195356);
way[highway=footway][surface][surface!=dirt][surface!=grass][surface!=unpaved][surface!=mud][surface!=ground](area:3606195356);
way[highway=cycleway][surface][surface!=dirt][surface!=grass][surface!=unpaved][surface!=mud][surface!=ground](area:3606195356);
);
out geom;