Highway Engineering
In hill roads the side drains arc provided

only on the opposite side of hill
only on the hill side of road
None of these
on both sides of road

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Highway Engineering
When the speed of traffic flow becomes zero,then

traffic density and traffic volume both attain maximum value
traffic density becomes zero whereas traffic volume attains maximum value
traffic density and traffic volume both become zero
traffic density attains maximum value whereas traffic volume becomes zero

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