Highway Engineering
Creep is the

Lateral movement of rail
Difference in level of two rails
Longitudinal movement of rail
Vertical movement of rail

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Highway Engineering
If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be

less than b/2h and greater than co-efficient of lateral friction
less than b/2h and also less than co-efficient of lateral friction
greater than b/2h and also greater than coefficient of lateral friction
greater than b/2h and less than co-efficient of lateral friction

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Highway Engineering
Length of a vehicle affects

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

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