IES has released the latest version of its ANSI/IES RP-8-21: Roadway and Parking Facility Lighting Standard. This standard covers all aspects of roadway lighting, including streets and roadways, parking lots, intersections, toll plazas, tunnels, and work zones. Notably, RP-8-21 is a compilation of numerous previously distinct IES American National Standards.

As discussed in the Introduction of RP-8, lighting design criteria need to carefully consider the following goals:

  • Improve motorist visual quality
  • Provide quality light and increased contrast for seeing hazards Illuminate conflict areas
  • Minimize environmental impacts of light at night
  • Employ lighting systems that are easily maintained and minimize energy use

To order RP-8, visit here.