面向控制的城市快速路网宏观动态交通模型

针对我国城市交通特点，在改进经典的高速道路网宏观交通流模型METANET的基础上，提出了面向控制的城市快速路网宏观动态交通模型。该交通模型能够更好地描述快速路出口匝道流出能力受限、快速路主线起始点车流以及快速路主线车速控制等现象。对上海高架快速路的实际交通流数据进行了仿真研究，结果表明该模型较好地反映了城市快速路交通流的动态演化特征，可以作为城市交通控制系统分析和设计的有力工具。

A Macroscopic Traffic Model for Dynamic Urban Freeway Network Control

Based on the analysis of the characteristics of urban freeway traffic in China, this paper improved the widely used macroscopic freeway network traffic model METANET, and proposed a macroscopic traffic model for dynamic urban free- way network control. The proposed model can better describe constrained out-flow at off-ramps, traffic flow behavior at mainstream origins, and travel flow behavior under the influence of dynamic speed limits. Simulation investigation of the model using real-world urban freeway traffic data at Shanghai, China, showed the satisfactory capability of the proposed model to describe the dynamic evolution of the urban freeway traffic. The proposed model provides a good tool for traffic control system design and analysis.