“…It is now widely accepted (see, e.g., [7,8]) that traffic flow can be considered as a particular example of collective nonequilibrium behavior of asymmetrically coupled elements and that many collective phenomena such as nonequilibrium phase transitions, nonlinear dynamical behavior, bifurcations, and pattern formations are inherent features of traffic flow models [9,10]. Other examples of asymmetrically coupled elements are intersegmental coordination of the neural networks responsible for generation of bipedal locomotion [11,12], electronic circuits [13], multiple robotic systems [14], etc.…”