Technical Drawing - Exam Papers - Higher - 1993 - Building

Question 7

The accompanying drawing shows ground contours at five-metre vertical intervals. ABC is the line of a proposed roadway and DEFG is a proposed parking area. O is the centre of the circular curve.

The roadway ABC has the following specification:

(i) formation width is 14 m;
(ii) formation level at B is 65 m;
(iii) A to B is level; gradient B to C is 1 in 15 rising;
(iv) side slopes for cuttings 1 in 1;
(v) side slopes for embankments 1 in 1.5;

The formation level at E in the parking area is 65 m and the gradient from E to F is 1 in 15 rising. The side slopes for cuttings and embankments are the same as for the roadway ABC.

On the drawing supplied show the earthworks necessary to accommodate the roadway and parking area.