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)
- THE INFLUENCE BY SIZE OF HEADLAMP ON DISCOMFORT GLARE ↗ · 2001 · paper relates to standard · 0.70 (embedding)
- ECE HEADLAMP PERFORMANCE STATUS AND POTENTIAL FOR IMPROVEMENT ↗ · 2001 · paper relates to standard · 0.69 (embedding)
- Perceived Discomfort Glare from an Adaptive Driving Beam Headlight system Compared with Three Low Beam Lighting Configurations ↗ · 2015 · paper relates to standard · 0.69 (embedding)
- EVALUATION OF THE FEASIBILITY OF A SINGLE-BEAM HEADLIGHTING SYSTEM ↗ · 1979 · paper relates to standard · 0.69 (embedding)
- Headlamps for light based driver assistance ↗ · 2008 · paper relates to standard · 0.69 (embedding)
- Adaptive Driving Beam - Visibility Improvement versus Glare ↗ · 2014 · paper relates to standard · 0.69 (embedding)
- A review of present requirements for road vehicle lighting and signalling ↗ · 1969 · paper relates to standard · 0.69 (embedding)
- THE EFFECT OF WIDE-ANGLE HEADLIGHT ILLUMINATION ON DRIVER PERFORMANCE ↗ · 1979 · paper relates to standard · 0.67 (embedding)
- The Twilight Envelope: A User-Centered Approach to Describing Roadway Illumination at Night ↗ · 2001 · paper relates to standard · 0.67 (embedding)
- Evaluation of High-Intensity Discharge Automotive Forward Lighting ↗ · 2001 · paper relates to standard · 0.66 (embedding)
- More Light on the Headlighting Problem ↗ · 1965 · paper relates to standard · 0.66 (embedding)
- Assessment of headlamp glare and potential countermeasures : the effects of headlamp mounting height · 2008 · paper relates to standard · 0.66 (embedding)
- Performance of the First Generation of HID Headlamps in the U.S. ↗ · 2005 · 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)
- Methodology to Assess Headlamp Performance in Virtual Environment and its Correlation with Real World Driving Conditions ↗ · 2021 · paper relates to standard · 0.65 (embedding)
- IMPROVED LOW-BEAM PHOTOMETRICS ↗ · 1983 · 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)
- ROad-VEhicle Lighting Integration A Study Of The Phase-1 Roveli System ↗ · 2005 · paper relates to standard · 0.65 (embedding)