Technical Drawing - Exam Papers - Higher - 1995 - 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 D is 15 m; from D to E the road is widened as shown;
(ii) formation level at B is 75 m;
(iii) gradient A to B is 1 In 15 rising; B to C is level; gradient C to E is 1 in 15 rising;
(Iv) side slopes for cuttings 1 In 2;
(v) side slopes for embankments 1 in 1.5.

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

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