Global Navigation

Navigation at the scale of routes and buildings — delivering a user from a starting point to a general destination area (a room, a platform, an exit). In blind-navigation research, global-navigation systems are typically turn-by-turn, localised via GPS, BLE beacons, Wi-Fi RSS, visual features, or ARKit, and output speech or vibration cues at decision points. Global navigation is well-studied for blind users; its inherent accuracy of 1–2 metres is sufficient to reach a hallway or lobby but not sufficient to reach a specific seat, button, or doorway — which is why it is usefully paired with local-navigation techniques for the last few metres of a journey.