求翻译：3) 针对固定周期和可变周期两种模式、等饱和度和延误最小两种优化目标，基于Q学习理论对单路口进行绿灯时间优化研究，建立了四种离线Q学习优化模型。通过VBA及Matlab编程实现算例，对四种离线Q学习优化模型的解的结构、最优解的分布进行分析，探讨离线Q学习优化模型在交叉口信号控制的适用性，最后将最优解在线应用到VISSIM实时交通控制中，并与经典Webster算法进行对比。是什么意思？

3) for a fixed period and variable cycle two mode saturation and delay minimum two optimization goals, the green time optimization of a single intersection q learning theory, four offline q learning optimization model. Vba and matlab programming examples to learn to optimize the structure of the sol

3) * fixed cycle and a variable cycle two modes, such as saturation and delays the minimum two optimization goals, Q learning theory based on the single intersection for green time optimization study, 4 of the off-line study Q optimization model. And by VBA Matlab programming examples, 4 of the off-

3) for fixed and variable cycle period two modes, such as saturation and delay optimization of minimum two goal, based on Q-learning theory to optimization of green time single intersection, has established four offline optimization model of Q-learning. By VBA and Matlab programming example, on four