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  1. 1
    Deploy and test a smartphone-based accessible traffic information system for the visually impaired

    Deploy and test a smartphone-based accessible traffic information system for the visually impaired by Liao, Chen-Fu

    St. Paul, Minn. : Minnesota Department of Transportation, Office of Research & Innovation, 2020
    Format: Book


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  2. 2
    Development of Mobile Accessible Pedestrian Signals (MAPS) for blind pedestrians at signalized intersections

    Development of Mobile Accessible Pedestrian Signals (MAPS) for blind pedestrians at signalized intersections by Liao, Chen-Fu

    Minneapolis, Minn. : Intelligent Transportation Systems Institute, Center for Transportation Studies, 2011
    Format: Book


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