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考虑影响随机延迟概率的几种因素 :当车速预期大于车距时 ,车辆处于减速状态 ,对前车状态变化的随机延迟反应较大 ,具有的延迟概率较大 ;当车速预期等于车距时 ,车辆处于平稳跟随行驶状态 ,具有的延迟概率较小 ;当车速预期小于车距时 ,车辆处于加速状态 ,其延迟概率最小 .计算机数值模拟得到的基本图不同于NaSch模型的基本图 ,在基本图上出现阻塞的范围内存在两个不同的区域 ,分别对应于具有不同激波速度的交通阻塞 .同时 ,研究了交通阻塞到消散的滞后现象
Considering several factors that affect the probability of random delay: when the expected vehicle speed is greater than the vehicle distance, the vehicle is in a deceleration state, and the random delay response to the change of the preceding vehicle state is larger, with a larger delay probability; when the expected vehicle speed is equal to the vehicle distance, When the vehicle speed is less than the vehicle distance, the vehicle accelerates and its delay probability is the least. The basic figure of computer numerical simulation is different from the basic figure of NaSch model, There are two different regions in the range of blocking, which correspond to traffic congestion with different shock speed respectively. At the same time, we study the lag between traffic jam and dissipation