This document is a Guide for the planning and design of roadway lighting and various related outdoor lighting systems. The Guide is intended to promote uniformity in lighting across Canada. It emphasizes that roadway lighting, if properly designed, installed and maintained, should reduce vehicle collisions, improve safety for cyclists and pedestrians, and enhance personal security. It also discusses ongoing trends in the development of more energy-efficient light sources, as well as the need to consider alternatives to lighting. The publication is divided into two major sections. Fundamental information upon which roadway lighting designs are based is provided in Volume 1 - Fundamentals. This includes information on lighting theory, obtrusive light, the design process, standards and codes, calculations, the use of computer software in road lighting designs and maintenance. Volume 2 - Design applies the principles and information presented in Volume 1 - Fundamentals to specific facilities that may require roadway lighting. These facilities include roadways, interchanges, intersections and tunnels. Off-roadway facilities are also included, such as pedestrians and bicycle pathways, weigh scales, rest areas and roadway signs. Considerations are also included for streetscapes, temporary roadway lighting and work zone lighting related to roadway construction. The Guide offers warranting criteria for each roadway application, with the warrants provided as a point-score system, a narrative definition or a combination of both. (Author/publisher)
Samenvatting