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原文传递 Guidelines for Nighttime Visibility of Overhead Signs

题名：	Guidelines for Nighttime Visibility of Overhead Signs
责任者：	National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program; Paul J. Carlson; Bradford K. Brimley; Jeff Miles; Susan Chrysler; Ron Gibbons; Travis Terry
关键词：	Transportation and Infrastructure ； Design Transportation and Infrastructure ； Highways
学科分类：	交通工程
摘要：	TRB's National Cooperative Highway Research Program (NCHRP) Report 828: Guidelines for Nighttime Visibility of Overhead Signs explores legibility distances for drivers in controlled conditions and the effects of sign luminance and visual complexity on the distance at which a driver can read overhead signs and street signs. While the Manual on Uniform Traffic Control Devices (MUTCD) provides minimum retroreflectivity standards for overhead signs, there are few guidelines that agencies can reference to decide how to provide sufficient nighttime performance of overhead signs in site-specific situations. The report presents proposed guidelines for nighttime overhead sign visibility, formatted as a potential replacement for the current Chapter 10, Roadway Sign Lighting, in the 2005 AASHTO Roadway Lighting Design Guide.
出版机构：	Transportation Research Board
参考文献：	National Academies of Sciences, Engineering, and Medicine. 2016. Guidelines for Nighttime Visibility of Overhead Signs. Washington, DC: The National Academies Press. https://doi.org/10.17226/23512.
总页数：	82
报告类型：	科技报告
资源类型：	科技（咨询、行业）报告
初始创建时间：	2016