The embodiment of the invention provides a smart highway variable speed limit control strategy multi-objective optimization method, which belongs to the technical field of data processing, and specifically comprises the following steps: step 1, improving a CTM model based on variable meta-cells, fusion of a metastable state theory, variable traffic capacity and variable free flow speed to obtain a variable CTM model; obtaining an expressway simulation model corresponding to the target road section; 2, according to a preset optimization target and constraint conditions, solving is conducted through an NSGA-II algorithm and the expressway simulation model, and an optimization strategy set is generated. According to the scheme of the invention, the variable CTM model oriented to the active management and control of the expressway is constructed from the time-space characteristics of the operation of the traffic flow of the expressway under the influence of the event, the traffic safety is considered, and the accident risk calculation method based on the variable CTM model is constructed. The accidental bottleneck variable speed limit control multi-target optimization method with safety and efficiency as targets is provided, and optimization precision, adaptability, safety and efficiency are improved.
本公开实施例中提供了一种智慧高速公路可变限速控制策略多目标优化方法,属于数据处理技术领域,具体包括:步骤1,基于元细胞可变、融合亚稳态理论、通行能力可变和自由流速度可变对CTM模型进行改进,得到目标路段对应的高速公路仿真模型;步骤2,根据预设的优化目标和约束条件,利用NSGA‑II算法和高速公路仿真模型进行求解,生成优化策略集。通过本公开的方案,从事件影响下高速公路交通流运行时空特征出发,构建面向高速公路主动管控的可变CTM模型,考虑交通安全,构建了基于可变CTM模型的事故风险计算方法,提出了以安全和效率为目标的偶发性瓶颈可变限速控制多目标优化方法提高了优化精准度、适应性、安全性和效率。
Multi-objective optimization method for variable speed limit control strategy of smart highway
智慧高速公路可变限速控制策略多目标优化方法
2023-05-12
Patent
Electronic Resource
Chinese
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