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Information analysis Information collection Information supply Control System structure diagram Effects of introducing the traffic control system		These cameras are fixed on revolving stands and housed in outdoor-type boxes. Traffic control centers can control camera direction, zoom function, and wiper operation. Recently, the numbers of color cameras using semiconductors in imaging elements have been increasing. The images captured by the cameras are sent to the traffic control centers through image transmission lines. Traffic control center operators can select required images and display them on screens where camera numbers permit.

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