基于贡献度模型方法对空中交通管制中心系统的效能评估

 空中交通管制(ATC)中心系统的效能变化,直接影响到管制员的工作负荷和管制中心所辖空域的交通容量,是ATC系统的关键运行指标。基于系统行为表现的效能概念框架,采用系统效能分析的贡献度模型方法,对ATC中心系统的运行环境和工作过程进行了建模分析,构建了一个由9个外部环境变量和50个内部单元变量构成的ATC中心系统行为关系模型。通过采集系统专家和管制人员对外部信息贡献度和内部功能关键度的等级判断,计算生成了反映系统内外因素变化对系统效能影响的系统效能贡献度模型,并利用该模型对一个实际运行的ATC中心系统进行了效能分析评估,初步揭示了ATC中心系统效能变化的特点和规律。评估结果与运行专家对系统效能的经验判断具有较高的吻合度,验证了所创建的ATC中心系统效能贡献度模型及其分析方法的合理性。

Effectiveness Evaluation of Air Traffic Control System Based on the Method of System Contributory Model

The system effectiveness of an air traffic control (ATC) center and its variation directly affect the workload of a controller and the capacity of the airspace controlled by the ATC center. They are the key operational parameters of an ATC control system. Based on an effectiveness conceptual framework of system performance and the analytic method of a system contributory model, this article presents an effectiveness analysis procedure for the system of an ATC center. A 9×50 matrix is created which characterized the behavior of the whole system and the performance deviation caused by status changes of inner and outer elements. The value of each element contributing to the whole system is calculated upon an investigation of the opinions of system specialists and controllers. And the article performs an evaluation of the system effectiveness of an operational ATC center by this model, which reveals certain distinguishing features of system effectiveness and their variation. The evaluating results show good conformity with the judgment made by operation specialists, which verify the rationality of the effectiveness contributory model of an ATC system and the analytic approach used in this article.