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Go to Front page Background section Travel by Blind
Other Effects of APS
Blind Pedestrians' Access to Complex Intersections
Project 3-62 Guidelines for Accessible Pedestrian Signals
Comparison of two types of APS
Interfacing Accessible Pedestrian Signals (APS) and Traffic Signal Controllers
Wayfinding Technologies for People with Visual Impairments
Comparison of APS signal technologies
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Technologies and Features section Types
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Choosing and Installing section Where to Install
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Field Adjustments

Current Research:
Comparison of two types of APS

Veterans Administration

Time frame
April 2001 - April 2003

This project in Atlanta will evaluate two types of APS, comparing crossings with each of two types of accessible pedestrian signals (receiver-based and pushbutton integrated) and a crossing without accessible signals. Measures will include the speed and accuracy of crossing, as well as self-reported levels of confidence and comfort in using each device. Data will be collected at two intersections of four-lane roadways on fifty participants who are totally blind or have no useable vision.

Research organizations
Veterans Administration Research and Development Center,
Center for the Visually Impaired

Mike Williams
Department of Veterans Affairs, Medical Center
Research and Development Center
1670 Clairmont Road, Decatur GA 30033
404-321-6111 x 7981 - williams.michael@atlanta.va.gov


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