Given an arterial road is to be connected to a frontage road by a reverse curve with parallel tangents. The distance between the centerline of the two tangent sections is 60 ft. The PC of the curve is located at station (38+25.31) and the central angle of each of the component curves is 25°. Determine: the station of PT.
What will be an ideal response?
Solve for the radius of the reverse curves, R,
Solve for the length of each of the reverse curves using Equation 15.26,
L = R?? / 180 = 320.20(25)(3.1415926) / 180 = 139.71 ft
The station of the PT can be found by adding 2 times the length of each reverse
curve to the station of the PC,
PT = (38+25.31) + (2+79.42)
PT = 41+04.73
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