POINT12

Anchor Points: This symbol requires three anchor points. Points 1 and 2 define the tips of the arrowheads and point 3 defines the rear of the symbol.

Size/Shape: Points 1 and 2 determine the symbol's height and point 3 determines its length. The vertical line at the rear of the symbol shall be the same length as the opening, and shall be perpendicular to the parallel lines formed with the rear of symbol vertical line and the lines ending with points 1 and 2.

Orientation: The opening typically faces the applicable obstacle.