Solid-State Roadway Lighting Design Guide: Volume 1: Guidance
The lighting industry has changed dramatically over the past decade. The optical system design of legacy
high-intensity discharge (HID) luminaires was restricted to the lamp, refractor, and reflector design,
which had limits in the distribution of the light, controls, and adaptability. Roadway luminaires have
moved beyond this design methodology to include the vast possibilities presented by solid-state lighting
(SSL). At present, in the form of light emitting diodes (LED), SSL uses lower energy, reduces
maintenance, improves color, and can be easily dimmed and controlled.
The TRB National Cooperative Highway Research Program's pre-publication draft of
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.
Also see this guide's accompanying pre-publication draft,
NCHRP Research Report 940: Solid-State Roadway Lighting Design Guide: Volume 2: Research Overview.
This Summary Last Modified On: 1/7/2020