a) A highway design includes the intersection of a +4.8% grade with a -4.2% grade at...

a) A highway design includes the intersection of a +4.8% grade with a -4.2% grade at station 1052+75 at elevation 851.50 feet above sea level. Calculate the center-line elevation along this highway for every 50-ft station on a parabolic curve of 600 feet length.

b) What is the minimum stopping sight distance on this vertical curve and the maximum safe speed on this section of road for wet pavement

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Expert Solution

Ally Wells answered 5 months ago

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