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
The direct interchange ramp involves

diverging to the left side and merging from right
diverging to the right side and merging from left
diverging to the left side and merging from left
diverging to the right side and merging from right

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Highway Engineering
The provision of traffic signals at intersections

reduces rear end collisions but may increase right angled collisions
reduces right angled collisions but may increase rear end collisions
reduces right angled and rear end collisions
increases right angled and rear end collisions

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