Assignment Task

1. Using The Plan Provided To Fix The Straights

• Using the given (true horizontal) distances, compute the scale of your plan and state this in the answer sheet.
• Find the bearings and distances of each of the three straights. Quote your answers to the nearest metre and nearest degree and adopt these values as being fixed for each straight?

2. Chainages For the Horizontal Aligment of the Road

• Determine the deflection angle at each I.P
• Calculate the tangent distance and arc length for each curve (to 2 decimal places) and show them in the table of answers.
• Calculate the chainages of each of the four horizontal curve T.P.s and the end of the road, and any other points listed, and show them all in the table answers.

3. Vertical Alignment

• Scale the distances along the road to each contour and show the results on the table of your answer sheet.
• Design a vertical alignment of the centre line of the road showing grades and vertical curves

4) Horizontal Curve Set Out Data

Calculate the data needed to set out each horizontal curve from its first T.P. by deflection angles and long chords. The points to be set out are: running chainages of every 10m along the road the Crown of the curve and the second T.P.