Consider the roadway crosssection presented below If the Med

Consider the roadway cross-section presented below. If the Median /Left Turn Lane width is 12’ and the shoulder width is 5’, what is the change in elevation from the centerline to the edge of the shoulder in inches?

Please show your work

LEFT RIGHT 12 LANE 12 0-14 CD 0-6 SHLDRLANE R PE MEDIAN LEFT TURN LANE 2.00% 2.00% PGL & AXIS OF ROTATION 1,5\" STONE MATRIX ASPHALT ,5\" HOT MIX ASPHALT UNTREATED BASE COURSE 12\" GRANULAR BORROW

Solution

Solution

Since the given width of road is 12 ft and width of shoulder is 5 ft (Total 17 ft).

Given side slope / gradient /camber is 2%,

Hence from centerline to edge of shoulder will have 17 x 2% =0.34 ft

= 4.08 inches change in elevation.