Highway Engineering
The critical combination of stresses for corner region in cement concrete roads is

Load stress + warping stress + frictional stress
Load stress + warping stress frictional stress
Load stress + frictional stress
Load stress + warping stress

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Highway Engineering
Length of a vehicle affects

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

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

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

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