Design a compund curve with the given conditions: Radil of the first and second curves: 600ft and 450ft; deflecting angle of the two connecting tangent is 75degree. The central angles of the first and second curve is 45 degree and 30 degree. The station of PCC is 675+35.25. Find the deflection angle and chord length for the first full station of the first curve:

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Q: 23.1 A 1,500-ft vertical curve is to be used for joining a +3.0% grade line and a-4.0% grade line.…

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Drainage of Pavements

Pavement Drainage holds ample significance, as it prevents the accumulation of water or any liquid on the surface of pavements and ensures proper drainage system. With proper design and gradual slopes provided, the water gets easily removed from the surface into the drains, which are essential during heavy rains and unusual weather conditions keeping it less prone to accidents and increasing the durability of the pavement structure.