Density Fluctuations in Traffic Flow
نویسنده
چکیده
Density fluctuations in traffic current are studied by computer simulations using the deterministic coupled map lattice model on a closed single-lane circuit. By calculating a power spectral density of temporal density fluctuations at a local section, we find a power-law behavior, ∼ 1/f, on the frequency f , in non-congested flow phase. The distribution of the headway distance h also shows the power law like ∼ 1/h at the same time. The power law fluctuations are destroyed by the occurence of the traffic jam.
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