GPS Navigation

GPS (Global Positioning System) navigation uses satellite signals to determine a device's location and provide directions to a destination. For people with disabilities, GPS navigation apps on smartphones have become essential wayfinding tools, offering turn-by-turn directions via speech, haptic feedback, or visual displays. However, standard GPS accuracy of 3-5 meters can be insufficient for pedestrian navigation, particularly for people with visual impairments who need precise information about sidewalks, crossings, and building entrances. Specialized accessible GPS apps like BlindSquare and Microsoft Soundscape augment standard navigation by adding spatial audio cues and points-of-interest announcements that help users build environmental awareness beyond simple route following.