Speed limits on roads are set based on determining factors such as: Oa) Surfacing materials Ob) Banking of turns Oc) Width Od) All of the above​

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Answer: D

Speed limit is set based off of all data recorded- banking of turns, width, and more. The answer is D.

Speed limits on roads are set based on determining factors such as surfacing materials, banking of turns and Width. Hence, option D is correct.

What is the speed limit on most roads?

25 miles per hour in residential or school zones, 55 miles per hour on country roads, and 70 miles per hour on rural Interstates Speed restrictions that are posted along the road and are governed by law are known as posted speed limits also known as regulatory speed limits.

On the advice of the general public, traffic engineers' statistical research, and recommendations from other members of the public, speed limits are determined by a public authority. Naturally, there is a little bit more to it than that. Politics and science are used to determine the speed limits for roads.

Thus, option D is correct.

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