(Modeling) Highway Curves A basic highway curve connecting two straight sections of road may be circular. In the figure, the points P and S mark the beginning and end of the curve. Let be the point of intersection where the two straight sections of highway leading into the curve would meet if extended. The radius of the curve is R, and the central
Principles of Highway Engineering and Traffic Analysis, Second Edition, John Wiley and Sons.)
(a) If R = 965 ft and θ = 37°, find the distance d between P and Q.
(b) Find an expression in terms of R and θ for the distance between points M and N.
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