ahilly road is spiral in shape.why
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- ggggfdlcsuegrXrhwirehis
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- bsbsgsgshgwywyrtyeeyg
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One reason is because vehicles such as semi trucks have difficulty when the grade is too steep. Another reason is in the event that the road gets icy, it would be very difficult to traverse up and/or down a steep grade and have good traction. Vehicles would have a tendency to slide all over the place.
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