A real-time traffic management system comprising a main light controller module configured to monitor and control functionality of one or more traffic lights, a master control unit server software application, a network operations control module, and a network watcher application program. To compensate for the inevitable differences between processing pathways arising from the various zones, there is provided a digital correction table inserted into one of the processing pathways. The second amplifier stage is coupled to the pair of output nodes of the first amplifier stage. A fourth projection extends from the rear portion of the principal surface of the slider body at a position centrally located in the lateral direction of the slider body, and a transducer is mounted on a rear edge of the third projection so as to establish pseudo contact with the disc surface while the slider body is flying above the disc surface.