Zhu Yan
School of Telecommunications Engineering, Xidian University, Xi'an 710071, China.
Sensors (Basel). 2024 Feb 18;24(4):1303. doi: 10.3390/s24041303.
With the increasing number of urban vehicles, as well as the current situation of non-intelligent traffic control systems, spatiotemporal non-uniform traffic resource occupation, and limited traffic planning and design, existing urban traffic planning methods cannot effectively solve problems such as frequent traffic congestion and uncontrollable commuting time for residents. In order to solve the above problems, this paper first constructs a multi-queue, multi-server queuing model based on the server vacation and a multi-hop cascaded queuing model from the perspective of local intersections and global commuting paths. We analyze the theoretical changes in passage delay costs at local intersections and on global commuting paths as a function of traffic flow and the random duration of traffic signals. On this basis, this article proposes a collaborative intelligent traffic planning algorithm based on artificial intelligence, which utilizes traffic sensors to dynamically perceive traffic congestion status and collaboratively plans the optimal duration of traffic signals and the optimal driving path of vehicles from both local and global perspectives, thereby maximizing the on-time arrival ratio of vehicles while ensuring the required commuting delay. The simulation results show that the proposed method can increase the on-time arrival ratio of vehicles by at least 20% compared to contrast methods while meeting the requirements relating to commuting delays. This verifies that our method can provide support for the improvement in efficiency in future Internet of vehicles.
随着城市车辆数量的增加,以及当前交通控制系统非智能化、时空交通资源占用不均匀、交通规划设计有限的现状,现有的城市交通规划方法无法有效解决交通拥堵频繁、居民通勤时间不可控等问题。为了解决上述问题,本文首先从局部路口和全局通勤路径的角度构建了基于服务器休假的多队列、多服务器排队模型以及多跳级联排队模型。我们分析了局部路口和全局通勤路径上通行延迟成本随交通流量和交通信号随机持续时间的理论变化。在此基础上,本文提出了一种基于人工智能的协同智能交通规划算法,该算法利用交通传感器动态感知交通拥堵状态,从局部和全局两个角度协同规划交通信号的最优持续时间和车辆的最优行驶路径,从而在确保所需通勤延迟的同时最大化车辆的准时到达率。仿真结果表明,与对比方法相比,该方法可使车辆准时到达率至少提高20%,同时满足与通勤延迟相关的要求。这验证了我们的方法可为未来车联网效率的提升提供支持。