The TRB National Cooperative Highway Research Program's NCHRP Research Report 940: Solid-State Roadway Lighting Design Guide: Volume 1: Guidance develops more comprehensive guidelines in American Association of State Highway Transportation Officials (AASHTO)-standard format for the application of roadway lighting related to the widespread adoption of SSL, and identifies gaps in knowledge where possible future research will enhance these guidelines. This report is not available from TRB nor the National Academies. The report will be published by AASHTO early in 2022.
The guide that accompanying report is available for download at NCHRP Research Report 940: Solid-State Roadway Lighting Design Guide: Volume 2: Research Overview.
National Academies of Sciences, Engineering, and Medicine. 2020. Solid-State Roadway Lighting Design Guide: Volume 1: Guidance. Washington, DC: The National Academies Press. https://doi.org/10.17226/25678.
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