Applied Mathematics and Mechanics (English Edition) ›› 1998, Vol. 19 ›› Issue (9): 807-813.

• Articles •     Next Articles

TWO-DIMENSIONAL CELLULAR AUTOMATON TRAFFIC MODEL WITH RANDOMLY SWITCHING TRAFFIC LIGHTS

Gu Guoqing1, Hui boming2, Wang Binghong3, Dai Shiqiang 4   

  1. 1. School of Systems Science and Systems Engineering, University of Shiinghai, S & T, Shanghai 200093, P. R. China;
    2. Physics Department. The Chinese University of Hong Kong, Shaun, New Territorim, Hong Konb, P. R .China;
    3. Department of Modern Physics, University of Science and Technology of China, Hefei 230026. P. R. China;
    4. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072. P. R. China
  • Received:1997-01-31 Online:1998-09-18 Published:1998-09-18
  • Supported by:

    Project supported by the Natural Science Foundation of Shanghai, China

Abstract: Cellular automaton traffic models can include various .factors in traffic systems and the corresponding conutational simulations are rather simple and effecive, The Billam-Middleton model (BML model) facilitates the simulation of twodimensional traffic flow problems via the cellular automaton models. In this paper, the BML model is improved by removing its limitation of syncronized change of trafficlights. In the new model, the traffic light at each crossing could arbilrarliy, change its starting time and tempo of variution, and hence thc model more more realitically describe the influence of traffic lights on the performance of traffic systems. Some new effects appearing in the new nodel are also elucidated.

Key words: cellular automata, traffic model, traffic light, phusc transition

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