高速公路交通流优化模型及分析

Model and Analysis of Freeway Trafeic Flow

本文对高速公路进行了两级分段，以车流密度ρ（ｋ）和主流速度ｖ（ｋ）作状态变量，将人口匝道车流量ｒｉ（ｋ）作控制变量，建立高速公路非线性离散动态交通流数学模型和交通流优化模型，提出了模型中参数辨识的优化算法，分别建立了高峰期和非高峰期两种情况优化目标函数，最后，实际计算了西（安）临（潼）高速公路高峰期和非高峰期的优化状态．

This artiele dcals with the model of frceway traffic flow. We set up in this article the nonlinear-dis-crete-dynamic traffic flow model and optimization analysis model of freeway traffic flow.We also created two kinds of optimization objeetive functions in dctail at rush hours and non-rush hours, and diseussed the teehnique of parametric inference in the models.At last,We calculated actually freeway states from Xian to Ling tong both at rush hours and non-rush hours.