Remote infrared signage evaluation for transit stations and intersections.

This paper focuses on 2 problems that are among the most challenging and dangerous faced by blind travelers: negotiating complex transit stations and controlled intersections. The authors report on human factors studies of the Talking Signs remote infrared signage system in these critical tasks, examining such issues as how much training is needed to use the system, its impact on performance and safety, benefits for different population subgroups, and user opinions of its value. Results indicate that blind people can quickly and easily learn to use remote infrared signage effectively, and that its use improves travel safety, efficiency, and independence.