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17 May, 18:26

The most commonly used traffic control devices used in road construction and maintenance work areas are

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  1. 17 May, 20:31
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    The answer that best completes the statement above is this: signs, barricades, drums, cones, tubes, flashing arrow panels, and flag individuals. The main purpose of these traffic control devices is to signal the drivers to stop or to slow down and to change lanes most especially in areas that are undergoing construction.
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