Question: Q 3 . A horizontal curve on a two - lane highway has a superelevation of 6 % and a central angle of 4 2

Q3. A horizontal curve on a two-lane highway has a superelevation of 6% and a central angle of 42 degrees. The PT of the curve is 74 m away from PI , at 7+756. The road has 3.2 m lanes and 2.8 m shoulders on both sides with trees right next to the shoulders. What is the highest safe speed of this curve and what is the station of the PC?
Provide the radius equation used:
Q 3 . A horizontal curve on a two - lane highway

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