The first concept is an app on your mobile phone that calculates the best route. In the app the user can set a starting point and destination. 

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The app will find the best route for visually impaired people by avoiding: crowded roads, roads with obstacles and having to cross over crossroads. The app remembers where the person has been and will use familiar routes the most.

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The direction the user has to go will be communicated by vibrating wearables. There are two wristbands, one for each arm. When the user has to go to the right, the right side will vibrate and the left side vibrates when the user should turn left.

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People can also report obstacles, closed roads, and other hinders.

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This results not always in the fastest road, but the safest road.