高速公路入口匝道的协调优化控制

为了实施高速公路路网交通流的优化控制，采用MATANET模型进行路网交通流建模，应用非线性最优控制方法，构造了路网入口匝道的协调控制模型。该模型应用全局实时交通数据，以总费用时间与密度控制的组合构建性能指标，能够提高交通运行效率，并有效处理交通拥挤。针对模型的非线性，应用遗传算法对性能指标进行优化，探究TTS-密度控制指标的优化对路网交通拥挤状况的控制效果。以南京市周边高速公路路网作为应用实例，验证了所研究模型与优化方法的可行性。

Optimal Coordination Control of Entry Ramp of Freeway

In order to implement the optimal control of freeway network traffic flow, MATNET model was used for traffic flowmodeling, and nonlinear optimal control was applied to build an on-ramp coordination control model. Taking the combination of total time spending （TTS） and density control as the performance indexes, this model used the global real-time traffic data to impro effectively. ve the operating efficiency of network traffic, and deal with traffic congestion Considering the nonlinearity of the model, a genetic algorithm was used to optimize the performance indexes to explore the effect of TTS-density control index on traffic congestion. At last, the surrounding network traffic of Nanjing was taken as an example to indicate the feasibility of the proposed model and optimization method.