It is found that there exists the metastability and hysteresis effect of traffic flow in the neighborhood of critical density under different initial conditions . a computer simulation system named cats was fulfilled with all celluar automata models in java language 利用面向对象的java语言,设计实现了cats仿真系统,模拟了各种一维周期性边界条件下高速公路上车流运动,显示了交通流的各种现象。
英文解释
the quality of a physical system that persists in its existing equilibrium when undisturbed (or only slightly disturbed) but able to pass to a more stable equilibrium when sufficiently disturbed