UN ECE R149
Uniform provisions concerning the approval of road illumination devices (lamps) and systems for power-driven vehicles
| Issuing body | UNECE |
|---|---|
| Committees | UNECE (WP.29, GRE) |
| First issued | 2019 |
| Latest revision | 2024 |
| Status | active |
| Category | international |
| Topics | glare, headlamp_performance, night_driving, visual |
| Reference | https://unece.org/sites/default/files/2021-05/R149e.pdf |
Scope
Consolidated performance regulation for road illumination devices (RID): headlamps emitting driving and/or passing beams, adaptive front-lighting systems (AFS), front fog lamps and cornering lamps. Streamlines and supersedes the separate older headlamp regulations (R19, R98, R112, R113, R119, R123) for new types. Specifies photometric beam patterns, glare limits and cut-off that determine how far and how well the driver sees the road at night and how much glare oncoming/leading drivers receive.
Related Papers (20)
- Headlamps for light based driver assistance ↗ · 2008 · paper relates to standard · 0.69 (embedding)
- The Twilight Envelope: A User-Centered Approach to Describing Roadway Illumination at Night ↗ · 2001 · paper relates to standard · 0.67 (embedding)
- Assessment of headlamp glare and potential countermeasures : the effects of headlamp mounting height · 2008 · paper relates to standard · 0.66 (embedding)
- Roadside Assistance Vehicle Lighting: Review of Scientific Research and State Regulations · 2025 · paper relates to standard · 0.66 (embedding)
- Public Roads: A Journal of Highway Research and Development, Vol. 51 No. 2 · 1987 · paper relates to standard · 0.66 (embedding)
- A Safety Evaluation of UVA Vehicle Headlights · 1998 · paper relates to standard · 0.65 (embedding)
- Enhanced Night Visibility Series, Volume XVI : Phase III, Characterization of Experimental Objects · 2005 · paper relates to standard · 0.65 (embedding)
- CHARACTERISTICS AND NEEDS FOR OVERHEAD GUIDE SIGN ILLUMINATION FROM VEHICULAR HEADLAMPS ↗ · 1999 · paper relates to standard · 0.65 (embedding)
- Nighttime Highway Construction Illumination [URTC Report] · 2014 · paper relates to standard · 0.64 (embedding)
- Evaluation of the Impact of Spectral Power Distribution on Driver Performance · 2015 · paper relates to standard · 0.64 (embedding)
- Web-Based Training for FHWA Roadway Lighting Workshop Module 1: Roadway Lighting Design Overview · 2018 · paper relates to standard · 0.64 (embedding)
- Roadway Lighting Handbook · 1978 · paper relates to standard · 0.64 (embedding)
- Driver Vision: Bibliography · 1963 · paper relates to standard · 0.64 (embedding)
- Development of a Model to Calculate Roadway Luminance Induced by Fixed Roadway Lighting ↗ · 2006 · paper relates to standard · 0.63 (embedding)
- Overhead guide sign retroreflectivity and illumination. · 2015 · paper relates to standard · 0.63 (embedding)
- Vehicle kinematics in turns and the role of cornering lamps in driver vision. · 2010 · paper relates to standard · 0.63 (embedding)
- Public Roads: A Journal of Highway Research, Vol. 36. No. 12 · 1972 · paper relates to standard · 0.63 (embedding)
- The Relation between and Driving Behavior Discomfort Glare · 1996 · paper relates to standard · 0.62 (embedding)
- Connected vehicle applications for adaptive overhead lighting (on-demand lighting) : final research report. · 2016 · paper relates to standard · 0.62 (embedding)
- Design Criteria for Adaptive Roadway Lighting · 2014 · paper relates to standard · 0.62 (embedding)