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在道路的养护维修期间,高速公路作业区由于经常需要关闭车道而形成道路通行的瓶颈,影响着高速公路运行的平稳性和安全性。为降低车道关闭带来的影响,结合ITS技术设计了高速公路作业区的智能车道汇合控制系统的流程,并建立了信息采集子系统、信息处理及决策子系统和信息发布子系统。该系统通过分析交通检测器采集到的实时数据对交通状态进行判别,根据道路的拥挤状况动态选择车道汇合控制方案。最后,通过模拟的方法对系统的性能进行了比较分析,结果表明:智能汇合控制相比于静态汇合控制、动态提前汇合控制和动态延迟汇合控制,性能更为优越,特别是在改善高速公路作业区的安全性和通行能力方面。
During the maintenance and repair of the road, the expressway operating area forms the bottleneck of road traffic due to the frequent need to close lanes, affecting the smoothness and safety of the expressway operation. In order to reduce the impact of lane closure, the process of intelligent lane convergence control system for expressway operation area was designed in combination with ITS technology. Information acquisition subsystem, information processing and decision-making subsystem and information distribution subsystem were established. The system analyzes the real-time data collected by the traffic detector to determine the traffic status and dynamically selects the lane convergence control scheme according to the traffic congestion. Finally, the performance of the system is compared and analyzed through the simulation method. The results show that the intelligent convergence control has better performance than the static convergence control, the dynamic early convergence control and the dynamic delay convergence control, especially in the improvement of freeway operation Area safety and accessibility.