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A vertical crest curve on a single carriageway road with a design speed of 100km/h is...

A vertical crest curve on a single carriageway road with a design speed of 100km/h is to be built in order to join as ascending grade of 3% with a descending grade of 3%. The motorist’s eye height is assumed to be 1.05m while the object height is assumed to be 0.26m. 1. Calculate the minimum curve length required in order to satisfy the requirement of minimum sight stopping distance. 2. Recalculate the minimum curve length with the object height assumed to be zero. 3. Recalculate the minimum curve length assuming a design speed of 70km/h.

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