A highway being designed to AASHTO guidelines with a 70 mph
design speed, and at one...
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Civil Engineering
A highway being designed to AASHTO guidelines with a 70 mphdesign speed, and at one section, an equal tangent vertical curvemust be designed to connect grades of +1% and -2%. If the gradesintersect at station 100+00, determine the stationing of the PVC,PVT and curve high point for the minimum curve length based pn SSDrequirements.
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Ans Determine curve length L considering L SSD usingrelation L A 400 35Swhere S SSD at 70 mph suggested by AASTHOA Difference in grade as
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