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1·It is showed that a shock wave speed distribution in red light period at a plane intersection satisfies a normal assumption, as well as Poisson assumption.

依据实际测量数据，论证了平面交叉口绿灯转红灯时车流堵塞波的推进速度满足正态分布假设，其拟合优度高于泊松分布假设。

2·The results show that: (1) the propagation of the shock wave is asymmetrical relative to the normal direction of the flare.

结果表明：(1)激波的传播相对耀斑法线方向是非对称传播。