Geographic Information System

A system for capturing, storing, analyzing, and displaying geographically referenced spatial data. In accessibility, GIS technology underpins navigation and wayfinding tools for blind and visually impaired users by providing detailed environmental databases that can be queried for route planning, landmark identification, and contextual information about surroundings. Modern accessible navigation apps rely on GIS data to deliver turn-by-turn directions, nearby point-of-interest information, and spatial context that supports independent mobility.