GPS-based navigation apps are commonly used by people who are blind or visually impaired (BVI) for finding walking routes between two points. These maps were however created mainly for cars driving on streets and are often not very accurate for pedestrians. This study looks at how accurate or inaccurate such existing apps are for pedestrian navigation and presents a redesigned mapping and navigation application that considerably improves upon existing ones for the BVI population. User studies are conducted to determine if the improvements are significant and worth the effort as compared to using existing applications.
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