Faithin Omaha eBook Collection

Download or read book Evaluation and Installation Guidelines for Utah Advance Warning Signal Systems written by Grant G. Schultz and published by . This book was released on 2007 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advance warning signals (AWS) provide information warning drivers in advance of the end-of-green interval for an approaching signalized intersection. The purpose of this research was to develop guidelines for the placement of AWS in Utah, both conditions to evaluate the need for AWS installation and guidelines for the AWS system design. The conditions were based on a detailed literature review and were developed using the Policy Delphi method. Six conditions are recommended and discussed in detail, including: limited sight distance, posted speed, isolated intersection, high crash rate, approach grade, and heavy vehicle traffic volume -- Abstract.