Highway Engineering
The entrance and exit curves of a rotary have

equal radii and equal widths of pavement
different radii and different widths of pavement
equal pavement widths but radius is more at entrance curve than at exit curve
equal radii but pavement width is more at entrance than at exit curve

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

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