Highway Engineering
The attainment of super elevation by rotation of pavement about the inner edge of the pavement

results in balancing the earthwork
avoids the drainage problem in flat terrain
does not change the vertical alignment of road
is preferable in steep terrain

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Highway Engineering
With increase in speed of the traffic stream, the maximum capacity of the lane

first decreases and then increases after reaching a minimum value at optimum speed
increases
first increases and then decreases after reaching a maximum value at optimum speed
decreases

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Highway Engineering
Length of a vehicle affects

extra width of pavement and minimum turning radius
width of traffic lanes
clearance to be provided under structures such as overbridges, under-bridges etc.
width of shoulders and parking facilities

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