城市道路交通控制子区划分策略研究

Study on Sub-Area Division Strategy of Urban Road Traffic Control

摘要: 由于城市道路系统的复杂性、随机性、动态性等特点，对整个路网进行统一的交通诱导与控制显然是不现实的。因此要实现有效的交通诱导与控制，应该根据城市空间和功能的发展变化来对整个交通网络系统进行分区。本文从静态方法、动态方法阐述了交通控制子区划分的研究现状并指明其中存在的不足，给出了根据节点状态进行交通控制子区划分的原则，详细设计交通控制子区划分算法。最后运用标准测试网络Sioux Falls网络对划分算法进行验证。实例分析表明，该算法能够实现有效的交通诱导与控制，缓解交通拥堵。

Abstract: Because of the complexity, randomness and dynamics of the urban road system, it is obviously unrealistic to unify the traffic guidance and control of the whole road network. Therefore, in order to achieve effective traffic guidance and control, the whole traffic network system should be zoned according to the development of urban space and function. The paper expounds the present research situation of traffic control sub-area division by static and dynamic methods and points out the shortcomings, gives the principle of dividing the traffic control sub-area according to the node state, and designs traffic control cell partition algorithm in detail. Finally, the standard test network Sioux Falls network is used to verify the partitioning algorithm. Case analysis shows that the algorithm can achieve effective traffic guidance and control, and alleviate traffic congestion.