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A national highway passing through a rolling terrain has two horizontal curves of radii 150 m and 450 m .

A national highway passing through a rolling terrain has two horizontal curves of radii    150 m

and 450 m   . Design the required superelevation for the curves given that the coefficient of

friction is 0.15   and the design speed is  80 km/h. What is your comment on your findings?

Top Answer

V 2 /127R=e+f r e=V 2 /127R-f r e 1 =V 2 /127R-f r =(80 2 /127*450)-0.15=-0.04 or... View the full answer

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