Dynamic cooperative management and control method for variable speed limit of automatic driving special lane and universal lane in confluence area on expressway

Abstract

The invention discloses a dynamic cooperative management and control method for variable speed limitation of an automatic driving special lane and a universal lane in a confluence area on an expressway. The method comprises the steps: generating a traffic operation state classifier; establishing a preset function curve of the three objective functions; determining the layout number of automatic driving special lanes; when the traffic operation state is crowded, starting a dynamic cooperative control scheme; enabling a roadside communication unit to issue automatic driving special lane control information and dynamic variable speed limit control information; and enabling a traffic information cloud end to dynamically adjust variable speed limit information, and when the traffic flow tends to be in a stable free flow state, ending dynamic cooperative management and control. According to the dynamic cooperative management and control method for variable speed limitation of the automatic driving special lane and the universal lane in the confluence area on the expressway, the adaptability of CAVs is promoted by providing a priority right to use the automatic driving vehicle, an active management mode is provided for a traffic manager, variable speed limitation is carried out on the traffic flow of the universal lane, and the purposes of improving traffic efficiency and reducing traffic conflicts are achieved.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and relates to a dynamic cooperative management and control method for the variable speed limit of the automatic driving special lane and the general lane in the merge area on the expressway. Background technique [0002] In recent years, China has successively proposed the "Outline for a Powerful Country in Transportation" and the national key strategic requirements for "new infrastructure", clearly pointing out that the development of smart transportation in the future needs to focus on intelligent networked autonomous vehicles and digital transportation infrastructure. In this context, breakthroughs have been made in the key technologies of autonomous driving, and road tests of autonomous vehicles have also begun to be carried out across the country. For a long time in the future, there will be a situation where autonomous vehicles and human-driven vehicles are mixed. The fl...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the specific embodiments of the present invention is to provide a dynamic collaborative control method for the variable speed limit of the automatic driving special lane and the general lane in the merge area on the expressway, and promote the adaptability and performance of CAVs by providing priority use rights for automatic driving vehicles. Provide traffic managers with an active management mode, and implement variable speed limits on general-purpose lanes based on real-time traffic flow information, so as to improve traffic efficiency, reduce traffic conflicts, and travel time; secondly, CAV vehicles use V2V, V2X and other communication technologies to make It can maintain a smaller headway, faster running speed and higher stability on the dedicated lane, thereby improving traffic safety and improving road traffic capacity, so as to solve the problems existing in the transition to a fully automatic driving environment in the future. The operating characteristics of high-quality traffic flow are not yet clear, and the management and control methods need to be improved, which leads to problems such as low traffic capacity, large safety hazards, and high operational delays.

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