For each of the four vertical curves show in the attachment (click here for attachment) calculate the following:
K and r
station of BVC and EVC
elevation of point at a distance, L/4, from BVC and EVC
station of turning point
elevation of turning point
elevation of mid-point of each curve
Draw a 1/R plot for the following alignment.
The alignment is as follows
Station 0+00 to 12+00 A circular curve to the right (radius = 1000 feet)
Station 12+00 to 14+00 A spiral curve
Station 14+00 to 22+00 A circular curve to the right (radius = 2000 feet)
Station 22+00 to 30+00 A circular curve to the left (radius = 3000 feet)
Station 30+00 to 35+00 A spiral curve
Station 35+00 to 40+00 A tangent segment
Calculate the k value for the second spiral curve.