Download Free Lighting Problems In Highway Traffic Book in PDF and EPUB Free Download. You can read online Lighting Problems In Highway Traffic and write the review.

Lighting Problems in Highway Traffic provides information pertinent to the problems in highway traffic. This book discusses a very complicated system of problems of greatest significance for road safety during dark hours. Organized into 11 chapters, this book begins with an overview of the information capacity of the human eye that is dependent on physiological, physical, and psychological factors. This text then examines the part played by the vision in the driving of vehicles. Other chapters consider the visual acuity, which varies greatly with the luminance of objects, with their contrasts, and with the presence of uneven luminosity conditions such as one encounters on the highways. This book discusses as well the difference between the illumination concept and the luminance concept in road and street lighting. The final chapter deals with the design of lower headlight beams. This book is a valuable resource for experts in different fields of lighting research.
This guide replaces the 1984 publication entitled An Informational Guide for Roadway Lighting. It has been revised and brought up to date to reflect current practices in roadway lighting. The guide provides a general overview of lighting systems from the point of view of the transportation departments and recommends minimum levels of quality. The guide incorporates the illuminance and luminance design methods, but does not include the small target visibility (STV) method.
TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.
The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.