From OpenStreetMap Wiki
Accessibility is ambigous:
- For making things usable by disabled persons, see Disabilities
- For making things understandable by persons with different languages or cultures, see Internationalization
- For making destinations reachable from a start location within a limited time or distance for a certain means of transportation, see Routing.
- For making places legally reachable by some kinds of persons or vehicles, or only during specific times, see Access and Restrictions.