Abstract: This paper presented a new cellular automaton model to simulate traffic flow on a singl}lane highway. Adriver-vehicle unit was abstracted to be an autonomous agent. The model was focused on multiple autonomous agents'　interactions ahead and agents' physical restrictions (particularly, acceleration and deceleration capabilities). The physical restrictions were realized by dual-regime acceleration and deceleration capabilities. The fundamental diagram, speedlocation plot,spacctime plot and phase diagram were presented.The cross correlation function was studied to identity the free flow and synchronized flow. The simulation results show that the model can reproduce the most empirical findmgs.

Key words: Traffic flow, Autonomous agents, Cellular automata, Model