While it is no longer the current standard, you can still obtain the 2018 edition for research purposes. Authorized vendors typically offer Secure PDFs (often with DRM to prevent unauthorized distribution) or printed versions.

Guidelines for sidewalks, bicycle pathways, and pedestrian conflict areas.

Reduces sky glow to preserve dark skies for astronomical observation and wildlife ecosystems.

The amount of light reflected off the road surface toward the driver's eyes.

Illuminating the Path: A Deep Dive into ANSI/IES RP-8-18 ANSI/IES RP-8-18