Question: A highway has a sag vertical curve whose gradient from the PVC to the PVI is -1% and whose gradient form the PVI to the

A highway has a sag vertical curve whose gradient from the PVC to the PVI is -1% and whose gradient form the PVI to the PVT is 2%. THe design speed is 55 mph. WHat is the required length of the vertical curve needed to provide a stopping sight distance of 550 ft

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