Given:

The information shown in Figures $1$ and $2,$ along with the data provided below, should

be used to establish the horizontal alignment and vertical profile:

Design speed: $60mph($for entire alignment$)$

Setting: Rural

Normal crown cross$-$slope: $2\%($high point at roadway centerline$)$

Maximum rate of superelevation: $8\%$

Cross$-$section: Two$-$travel lanes $($one in each direction$)$ @ $12$ feet wide

Find:

a$.$ Length of superelevation transition $($tangent runout plus superelevation runoff$)$

for horizontal curve #$1.$

b$.$ Draw the superelevation transition profile $($show transition at the beginning and

end of the curve $[$PC and PT stations should be shown on profile plot$])$ for

horizontal curve #$1.$ The axis of rotation for the tangent$-$to$-$curve transition is the

centerline of the roadway.

c$.$ Draw cross$-$sections $($including stations$)$ at the beginning of the superelevation

transition, removal of adverse crown, uniform cross$-$slope, and location where

full superelevation is first attained for horizontal curve #$1.$ Show cross$-$sections

for both ends of transition $($PC and PT ends of curve$),$ including the elevation

data. The minimum length of vertical curve, based on the design speed, should

be used for the elevation computations.