The "RP-8" moniker historically applied only to roadway lighting. The 2018 edition absorbs several distinct standards, including: Roadway Lighting RP-20: Parking Facility Lighting RP-22: Tunnel Lighting RP-3: Lighting for Exterior Workplace Environments DG-4: Design Guide for Roadway Lighting Maintenance DG-19: Design Guide for Roundabout Lighting
For the most up-to-date information, always consult the Illuminating Engineering Society's official store at store.ies.org . The official, current recommended practice for roadway and parking facility lighting is the standard, published in 2025. ansi ies rp-8-18 pdf
A: Yes, the official IES PDF allows printing for internal use (e.g., one office copy). It does not permit distribution to multiple sites without multi-user licenses. The "RP-8" moniker historically applied only to roadway
| Source | Format | Typical Price (USD) | Notes | |--------|--------|---------------------|-------| | (ies.org) | PDF (watermarked) | $140–$180 (member price ~$90) | Best source – direct from publisher. | | ANSI Webstore (ansi.org) | PDF or Print | $180–$210 | Reseller with identical content. | | Techstreet | PDF with DRM | ~$190 | Good for corporate accounts. | A: Yes, the official IES PDF allows printing
While older versions prioritized horizontal footcandles (illuminance), RP-8-18 . This is more accurate because drivers see the brightness of the road surface, not the light falling on it. The standard now provides primary design tables based on luminance for most roadway classes.