Vehicle performance is being tested on a large flat paved area. (i) Determine the coefficient of side friction for a car moving at a speed of 70miles/hr around the curve of a radius of 400m  (ii) Comment on this value of f whether it is high or low and state one disadvantage that may be caused due very high values of f  (iii) Assuming f = 0.11, for the same design speed as above calculate the minimum radius that will prevent sliding of the vehicle. State your answer in ft and m.

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Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.