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Suggested Citation:"Abbreviations and Acronyms." National Academies of Sciences, Engineering, and Medicine. 2020. Solid-State Roadway Lighting Design Guide: Volume 2: Research Overview. Washington, DC: The National Academies Press. doi: 10.17226/25679.
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Page 77
Page 78
Suggested Citation:"Abbreviations and Acronyms." National Academies of Sciences, Engineering, and Medicine. 2020. Solid-State Roadway Lighting Design Guide: Volume 2: Research Overview. Washington, DC: The National Academies Press. doi: 10.17226/25679.
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Page 78

Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

77 ANSI American National Standards Institute BUG backlight-uplight-glare CCT correlated color temperature cd candela CIE International Commission on Illumination CMF crash modification factor CMS central management system DOE U.S. Department of Energy DOT department of transportation fc footcandle GPS Global Positioning System HID high-intensity discharge HPS high-pressure sodium HSR high surround ratio HUR high uniformity ratio IES Illuminating Engineering Society ITS intelligent transportation system K kelvin kA kiloampere kW-h kilowatt-hour LED light-emitting diode LLD lamp lumen depreciation LMM linear mixed model LPS low-pressure sodium LSR low surround ratio LUR low uniformity ratio MMLR mixed models logistic regression mph miles per hour MTBF mean time between failures NEMA National Electrical Manufacturers Association nm nanometers O&M operations and maintenance PLC powerline carrier SHRP 2 second Strategic Highway Research Program SPD spectral power distribution SR surround ratio SSD stopping sight distance SSL solid-state lighting Abbreviations and Acronyms

78 Solid-State Roadway Lighting Design TAC Transportation Association of Canada VA volt-ampere VL visibility level VTTI Virginia Tech Transportation Institute

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Solid-State Roadway Lighting Design Guide: Volume 2: Research Overview Get This Book
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The findings of this survey report show that providing light beyond the limits of the roadway travel lanes benefits drivers’ visual performance and that the spectral content of light-emitting diode (LED) sources should be a design consideration. The study also found that, at present, there are no health impacts from properly designed roadway lighting.

The TRB National Cooperative Highway Research Program's 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 report, NCHRP Research Report 940: Solid-State Roadway Lighting Design Guide: Volume 1: Guidance.

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