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"TRB's National Cooperative Highway Research Program (NCHRP) Report 796: Development and Calibration of AASHTO LRFD Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals provides specifications for structural supports of highway signs, luminaires, and traffic signals for consideration and inclusion in the American Association of State Highway and Transportation Officials (AASHTO) load and resistance factor design (LRFD) methodology. The report includes the Research Report, which documents the entire research effort, and the Appendix A: Calibration Report. Appendix B: AASHTO LRFD Specifications will be published by AASHTO. Other appendices are available on the TRB website, including: Appendix C: Design Examples, Appendix D: Survey Results, Appendix E: Fatigue Resistance Comparisons."--Publisher's description.
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.