Technical Drawing - Exam Papers - Higher - 1999 - Building

Question 7

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

The roadway has the following specification:

(i) formation width from A to C and from D to E is 14 m, from C to D the road is widened as shown;
(ii) formation level at B is 50 m;
(iii) A to B is level; gradient from B to E is 1 in 15 rising;
(iv) side slopes for cuttings I in 1.5;
(v) side slopes for embankments 1 in 2.

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

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