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

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

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Highway Engineering
Centre line markings are used

to indicate that overtaking is not permitted
to designate traffic lanes
to designate proper lateral placement of vehicles before turning to different directions
in roadways meant for two way traffic

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Highway Engineering
Length of a vehicle affects

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

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