Highway Engineering
The aggregates required for one kilometer length of water bound macadam road per meter width and for 10 mm thickness is

10 cubic meter
15 cubic meter
12 cubic meter
8 cubic meter

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Highway Engineering
The provision of traffic signals at intersections

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

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

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

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