Route lines and per-leg driving distance/time come from the free OSRM public demo routing server when reachable; if that request fails, distances fall back to a straight-line estimate at your fallback average speed above, flagged "Estimate" rather than "Live route". Map tiles are free OpenStreetMap tiles, and place search uses the free Nominatim geocoder. This is a route-planning tool, not a live turn-by-turn navigator - no GPS tracking, no voice guidance, no rerouting while driving.