GRE/2012/42 is a GTB proposal to amend the geometric visibility provisions. This document corrects GRE/2012/42 in line with the latest state of the subject regulations including amendments submitted for consideration at the November WP.29 session.

Additional supporting arguments for the proposal to modify the photometric performance requirements of front position lamps integrated with front fog lamps and of rear position lamps integrated with rear fog lamps (analogous to the treatment of position lamps integrated into headlamps).

Presentation with additional refinements to the submission from Poland to replace the artificial 2,000 lm borderline and LED automatic leveling requirements with performance-based distance and glare criteria for headlamps.

Presentation concerning China proposal to clarify definitions concerning testing of “resistance to atmospheric agents”.

Presentation reviewing flasher signals and technological advances in support of developing clearer parameters within UN R6 and R48 to govern variations of light signals.

Review of a study on driver perceptions of direction indicator performance.

Presentation on the GTB’s Coordination of Automotive Visibility and Glare Studies (CAVGS) task force activities.

Presentation on GTB survey of literature related to glare and visibility issues including accident data, visual acuity research, lamp aiming, etc.

Update on the CAVGS task force activities.

SAE comments on the Chinese proposal to update the ‘resistence to atmospheric agents’ test by applying the spectral energy distribution of sunlight as defined in CIE Publication No. 85:1989, Table 4.

Revised OICA presentation on document GRE/2012/27, a proposal for Supplement 3 to the 05 series of amendments to UN R48 from Poland to replace the artificial 2,000 lm borderline and LED automatic leveling requirements with performance-based distance and glare criteria for headlamps.

This document contains editorial corrections to document GRE/2012/42 to amend the geometric visibility provisions of Regulations No. 3, 6, 7, 48, 77 and 91 following a review with the GRE secretariat to ensure that the proposal aligns with the latest state of the regulations.

Report of the Working Party on Lighting and Light-Signalling on its sixty-eighth session held in Geneva during 16-18 October 2012.