Traffic states and fundamental diagram in cellular automaton model of vehicular traffic controlled by signals

Takashi Nagatani

Physica A: Statistical Mechanics and its Applications, 2009, vol. 388, issue 8, 1673-1681

Abstract: We present a cellular automaton (CA) model for vehicular traffic controlled by traffic lights. The CA model is not described by a set of rules, but is given by a simple difference equation. The vehicular motion varies highly with both signals’ characteristics and vehicular density. The dependence of tour time on both cycle time and vehicular density is clarified. In the dilute limit of vehicles, the vehicular motion is compared with that by the nonlinear-map model. The fundamental diagrams are derived numerically. It is shown that the fundamental diagram depends highly on the signals’ characteristics. The traffic states are shown for various values of cycle time in the fundamental diagram. We also study the effect of a slow vehicle on the traffic flow.

Keywords: Traffic dynamics; Cellular automaton; Complex system; Signal control; Nonlinear map (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:388:y:2009:i:8:p:1673-1681

DOI: 10.1016/j.physa.2008.12.046

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