Technical Drawing - Exam Papers - Higher - 2008 - Building

Question 7

The accompanying drawing shows ground contours at five-metre vertical intervals.
ABCD is the line of a proposed roadway which is widened between B and C to form a parking area.

The roadway has the following specification:-
(i) formation widths are as shown;
(ii) formation level at B is 50m;
(iii) A to B is level;
(iv) gradient B to D is 1 in 16 rising;
(v) side slopes for embankments are 1 in 1.5;
(vi) side slopes for cuttings are 1 in 1.

On the drawing supplied, show the earthworks necessary to accommodate the roadway.