From the study it was found that the process of getting the coal fuel loss occurred from the transport because there are no signs to valet parking area and a clear dividing line, allowing to transport coal down the tub. The losses occurred in the movement than necessary, and the lack of organized in a parked truck. Researchers have proposed a way to solve the problem by applying the technique to control visibility as guidelines to solve the problem, you can minimize the wasteland in motion more than necessary.
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