Question: ( a ) . For the horizontal curve shown below, calculate the design superelevation rate if the design speeds the design for the curve is

(a). For the horizontal curve shown below, calculate the design superelevation rate if the design speeds the design for
the curve is 55MPH.
(b). Calculate the minimum tangent runoff and the minimum length of run off based upon the superelevation from
part 1 above.
(c). For the ahead direction, at what station does the tangent run off begin? At what station does the length of run off
begin? At what station does the length of run off end?
( a ) . For the horizontal curve shown below,

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