基于DCA原理的车道动态分配控制策略

DCA-Based Dynamic Lane Allocation Control Strategy

在城市道路交通系统中,由于机动车出行量的不断增长,使得现有道路资源、传统的交通控制及组织方式已无法满足出行者的需求。通过对城市道路交通系统与TD-SCDMA系统的共性进行分析,借鉴TD-SCDMA系统中DCA的原理,并结合现有道路资源分配方法,提出车道动态分配的新思路。在此基础上,分析基于双重缓冲车道和基于部分共享资源的双阈值车道预留动态分配策略。

The road resources which is fixed and limited,and the conventional methods of traffic control and organization have been unable to meet the demands of travelers in current urban road traffic system because of the rapidly increasing trip volumes of vehicles. Firstly, the common characteristics between urban road traffic system and TD-SCDMA of the third generation mobile communication system are analyzed in this paper. Then, a new conception of Dynamic Lane Allocation is proposed through a combination of the fun- damentals of Dynamic Channel Allocation （DCA） in TD-SCDMA and the available road resources distribu- tion approaches. Finally, two improved dynamic allocation strategies are put forward through further anal- ysis and discussion on the basis of DLA, which are respectively the dual-buffer-lane-based strategy and the dual-threshold lane-reservation partially-shared-resource-based strategy.