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In the United States, the first documented use of a painted center line was in 1911 along Trenton's River Road in Wayne County, Michigan. According to the state of Michigan, the idea of using a painted center line was conceived in 1911 by Edward N. Hines, the chairman of the Wayne County, Michigan, Board of Roads, after watching a leaky milk wagon leave a white trail along a road.

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11y ago

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