Research on Safety for Pedestrians with Visual Impairments
Roadway Safety Institute research focuses on improving the safety of at-risk road users through approaches that target all aspects of the journey—from better planning for routes and facilities to developing technologies and countermeasures for preventing crashes. One at-risk group is pedestrians with visual impairments.
Chen-Fu Liao of the University of Minnesota is a leading expert in this area. Liao's research focuses on using ITS technologies to assist people with vision impairment in finding their way. He recently developed a mobile accessible pedestrian signal (MAPS) system to assist the visually impaired with crossing streets at signalized intersections. He is also working on using assistive technologies to help the visually impaired safely navigate work zones.
Below is a list of current and previous projects in this area conducted by Liao and his team.
- Final Report: Development of a Navigation System Using Smartphone and Bluetooth Technologies to Help the Visually Impaired Navigate Work Zones Safely (2014)
- Improving work-zone safety for visually impaired pedestrians (CTS Catalyst, September 2014)
- Final Report: Using a Smartphone App to Assist the Visually Impaired at Signalized Intersections (2012)
- Smartphone research aims to help visually impaired (CTS Catalyst, August 2012)
- Seminar: Signalized Intersection Crossing for the Visually Impaired (February 2012)
- Final Report: Development of Mobile Accessible Pedestrian Signals (MAPS) for Blind Pedestrians at Signalized Intersections (Chen-Fu Liao, Mick Rakauskas, Avanish Rayankula; June 2011)