Providing light beyond the limits of the roadway travel lanes benefits drivers’ visual performance, spectral content of light-emitting diode (LED) sources should be a design consideration, and there are not currently any health impacts from properly designed roadway lighting are among the findings of this survey report.
The TRB National Cooperative Highway Research Program's pre-publication draft of NCHRP Research Report 940: Solid-State Roadway Lighting Design Guide: Volume 2: Research Overview determines the current guidance for the use of Solid State Lighting (SSL); identifies the research that still needs to be accomplished to assist in its proper implementation; and develops a comprehensive, easy to use, set of guidelines using currently available information and new research being proposed as part of this project.
Also see this guide's accompanying pre-publication draft, NCHRP Research Report 940: Solid-State Roadway Lighting Design Guide: Volume 1: Guidance.
Table of Contents
|Chapter 1. Introduction||8-11|
|Chapter 2. Current State of SSL Adoption and Guidance||12-13|
|Chapter 3. Structure of SSL Guide||14-17|
|Chapter 4. Literature Review and Gap Analysis||18-49|
|Chapter 5. Research and Testing Results||50-95|
|Appendix A: Survey Results||105-112|
|Appendix B: DOT Manuals and Specifications||113-118|
|Appendix C: Illuminance Characterization Tables||119-126|
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