1/f noise in a cellular automaton model for traffic flow with open boundaries and additional connection sites

摘要: Abstract The effect of additional input and output sites (as a connection to other roads) on the traffic flow in cellular automaton model road with open boundaries is investigated. For very low value probability p velocity fluctuation vehicles, 1 / f α fluctuations are computed from power spectrum flow. As result, ≃ free-flow maximal current phases, reduced jammed phase. Due vehicles movement through different chain boundaries, can never reach zero It note that periodic roads at high densities [K. Nassab, R. Barlovic, M. Schreckenberg, S. Ouaskit, submit]. inflow ( ) outflow out lead formation region corresponding phase diagram This result found case probabilities velocities boundaries. grows length if rates increase. In without sites, becomes large high, vanishes = 0 .