Highway Engineering
In case of summit curves, the deviation angle will be maximum when

an ascending gradient meets with a descending gradient
an ascending gradient meets with a level surface
a descending gradient meets with another descending gradient
an ascending gradient meets with another ascending gradient

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Highway Engineering
For a constant value of coefficient of lateral friction, the value of required super-elevation increases with

increase in speed and with decrease in radius of curve
increase in both speed and radius of curve
decrease in speed and with increase in radius of curve
decrease in both speed and radius of curve

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