Flying blind: Apps help visually impaired navigate airport

Chieko Asakawa knows firsthand the challenges of navigating airports while blind — so she has helped devise a remedy.
Asakawa is a professor at Carnegie Mellon University’s Robotics Institute.
This spring, she and other researchers launched a navigation app for Pittsburgh International Airport that provides turn-by-turn audio instructions to users on how to get to their destination.
The app is called NavCog. It works almost like an indoor GPS.
Previously, visually impaired travelers