UN R127 — Supplement 2 to the 04 series of amendments

Paragraph 2.49. now defines “One third of the windscreen test area” instead of “Third of the windscreen test area”. It means the area between the side boundaries of the windscreen test area as defined in paragraph 2.44.(c), divided “by the lines passing through the third markings of the lines from P to P' and from Q to Q' (the upper corner points of the windscreen test area)”, as shown in Figure 17. All lines are to be drawn and the three equal parts measured with a flexible tape following the outer contour of the windscreen. Before, it was the geometric trace of the area between the lateral boundaries, measured on any transverse section and divided in three equal parts. New Figure 17 shows the thirds of the windscreen test area.

If there is no unique “Q point” where the lines (b) and (c) of paragraph 2.44. intersect, it is defined by “the first contact of a vertical plane V45, intersecting the vertical longitudinal vehicle centre-plane at an angle of 45°, with the (b)-(c) transition of the windscreen test area boundary”. If (b) and (c) do not intersect and a connecting line closes the open test area, the “Q point” is the centre of this connecting line.

In Figure 13 of paragraph 2.44., the upper corner is now named Q instead of R. Figure 14 of paragraph 2.45., on the lateral limits of the cowl monitoring area, is replaced with an updated image.