SOURCE-LINKED REGULATION GUIDE
UN R125 — Driver’s forward field of vision
Assess forward visibility together with vehicle design and driver position.
Explore the scopeWhat does it cover?
UN R125 concerns the 180-degree forward field of vision for drivers of M1 and N1 vehicles. Its aim is adequate visibility when the windscreen and other glazed surfaces are dry and clean. It also explains how requirements written for left-hand-drive vehicles are reversed, where appropriate, for right-hand-drive vehicles.
Who is it for?
Vehicle-cabin and glazing designers, ergonomics specialists and visibility-assessment teams.
Which subjects are addressed?
- 180-degree forward field
- Dry and clean glazing condition
- Driver position
- Left- and right-hand drive
Common question
Under what glazing condition is visibility assessed?
The stated aim is adequate visibility with the windscreen and other glazing dry and clean. This scope does not replace assessment of performance under other conditions.
Source documents and references
Work with this regulation in RegsUP.
Read the text with its edition and sources. Assess available comparisons, relevant dates and question-and-answer features against your work needs.
Discuss access optionsRelated regulations
UN R43 — Safety glazing and its installation
Assess glazing material together with where it is installed in the vehicle.
UN R46 — Devices for indirect vision
Assess mirrors and vision systems together with their vehicle installation.
UN R167 — Direct vision for heavy vehicles
Assess what the driver can see without aids as part of vehicle design.