基于元胞传输模型的终端区交通流特性研究  

Analysis of Terminal Traffic Flow Characteristics Based on CTM

作　　者：梁海军 骆春阳 程万臻 于承玉 LIANG Hai-jun;LUO Chun-yang;CHENG Wan-zhen;YU Cheng-yu(Civil Aviation Flight University of China,Guanghan 618000,China;Sichuan Huaxi Installation Engineering Co.,Ltd.,Chengdu 610000,China)

机构地区：[1]中国民用航空飞行学院,四川广汉618000 [2]四川华西安装工程有限公司,四川成都610000

出　　处：《航空计算技术》2024年第2期16-19,25,共5页Aeronautical Computing Technique

基　　金：四川省科技计划项目资助(2022YFG0210);中央高校基本科研业务费项目资助(ZHMH2022-009)。

摘　　要：为阐明终端区交通流时空演变规律,揭示其拥堵机理,构建了基于元胞传输模型(CTM)的宏观交通流模型,根据航线连接、汇聚、分流等结构特点,定义一般、汇聚、发散三种元胞构型,并引入元胞优先级和发散系数概念解决交叉航线的流量分配问题;基于所提出的模型,利用AnyLogic搭建终端区交通流仿真平台,使用实测ADS-B数据验证模型的准确性;最后基于管制间隔、管制速度等变量对模型进行敏感性分析。结果表明,提出的CTM模型可准确建模进离场航班流;终端区交通流量、密度与流速三者之间存在明显关联;管制间隔和速度通过影响元胞内临界密度,间接控制交通流运行状态;基于CTM推演终端区交通流时空运行态势,将有助于缓解交通拥堵,提升系统整体运行效率。To elucidate the spatiotemporal evolution patterns of terminal area traffic flow and uncover congestion mechanisms,we constructed a macroscopic traffic flow model based on the Cellular Traffic Model(CTM).Taking into account the structural characteristics of route connections,convergence,and divergence,we defined three types of cell configurations:general,convergence,and divergence cells.Furthermore,we introduced the concepts of cell priority and divergence coefficient to address traffic distribution issues in the case of intersecting routes.Using this proposed model,developed a terminal area traffic flow simulation platform with AnyLogic and validated the model's accuracy with actual ADS-B data.Finally,we conducted sensitivity analysis on the model using variables such as control intervals and control speeds.The results indicate that the proposed CTM model can accurately model the flow of arriving and departing flights.There is a clear correlation between terminal area traffic flow volume,density,and velocity.Control intervals and speeds indirectly influence the operational state of traffic flow by affecting the critical density within cells.Using the CTM model for deducing the spatiotemporal dynamics of terminal area traffic flow will contribute to alleviating traffic congestion and enhancing the overall efficiency of the system.

关 键 词：终端区 流体特性 元胞传输模型 AnyLogic仿真 敏感性分析 

分 类 号：V355[航空宇航科学与技术—人机与环境工程]