Document ID: chunk:federal_register_of_legislation:F2015C00542:reg:22:p1
Version: federal_register_of_legislation:F2015C00542
Segment Type: reg
Provision Reference: reg 22 (pt 1/10)
Character Range: 263005–265663

22               -  26 mm       7 mm         40               123 mm        - 52 mm

2. Test areas
              2.1. Two test areas shall be determined from the "V" points.

              2.2. "Test area A" is the area of the outer surface of the windscreen bounded by the intersection of the following four planes (see Figure 1a and 1b):

                  (a) A plane inclined upwards from the X axis at 3°, passing through V1, and parallel to the Y axis (plane 1);

                  (b) A plane inclined downwards from the X axis at 1°, passing through V2, and parallel to the Y axis (plane 2);

                  (c) A vertical plane passing through V1 and V2 and inclined at 13° to the left of the X axis in the case of left-hand drive vehicles and to the right of the X axis in the case of right-hand drive vehicles (plane 3);

                  (d) A vertical plane passing through V1 and V2 and inclined at 20° to the right of the X axis in the case of left-hand drive vehicles, to the left of the X axis in the case of right-hand drive vehicles (plane 4);

                  (e) In case of a single central driving position, two planes upwards and downwards as defined in paragraphs 2.2. (a) and (b) above and two vertical plane passing through V1 and V2 and inclined at 15° to the left of the X axis (plane 3) and 15° to the right of the X axis (plane 4) (see Figure 1b).

              2.3. "Test area B" is the area of the outer surface of the windscreen bounded by the intersection of the following four planes:

                  (a) A plane inclined upwards from the X axis at 7°, passing through V1, and parallel to the Y axis (plane 5);

                  (b) A plane inclined downwards from the X axis at 5°, passing through V2, and parallel to the Y axis (plane 6);

                  (c) A vertical plane passing through V1 and V2 and inclined at 17° to the left of the X axis in the case of left-hand drive vehicles and to the right of the X axis in the case of right-hand drive vehicles (plane 7);

                  (d) A plane symmetrical with respect to plane 7 in relation to the longitudinal median plane of the vehicle (plane 8).

              2.4. The "reduced test area B" is test area B with the exclusion of the following areas[1] (see Figures 2 and 3).

              2.4.1. The test area A defined under paragraph 2.2., extended according to paragraph 9.2.2.1. of Annex 3;

              2.4.2. At the discretion of the vehicle manufacturer, one of the two following paragraphs may apply:

              2.4.2.1. Any opaque obscuration bounded downwards by plane 1 and laterally by plane 4 and its symmetrical in relation