摘要: |
This document provides background information on how pedestrians who are blind or visually impaired cross streets, and how Accessible Pedestrian Signals assist this process. Past research is reviewed, as are rules and regulations that pertain to APS. A short review of international APS use is included. Various types of APS and their features are discussed at length. Practical advice is given on where and how to install APS under actual field conditions. A list of APS devices currently available in the U.S. is included. A product matrix summarizes the availability of APS features by product. The purpose of this document is to be a resource to those who wish to use and advocate the use of APS. It is also a best practice guide for those in U.S. state and local governments who design, specify, and install APS. |