Question: A 1 2 0 0 - ft equal tangent crest vertical curve is currently designed for 5 0 m i h . A civil engineering

A 1200-ft equal tangent crest vertical curve is currently designed for 50mih. A civil engineering student contends that 60mih is safe in a van because of a higher driver's eye height. If all other design inputs are standard, how high must the driver's eye height (in the van) be for the student's claim to be valid?
A 1 2 0 0 - ft equal tangent crest vertical curve

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