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?
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