导航系统驾驶环境中脑力负荷评价技术比较

在高技术条件下，无论是对于飞行员还是ITS中的驾驶员，信息高度密集的驾驶环境对作业负荷水平的评价提出了新的要求，综述了4种典型的主观脑力作业负荷评价技术，并以导航系统的应用为例，分别用这4种方法对3种不同驾驶环境下的实验数据进行了评价计算，用敏感性分析结合参试者主观评价对计算结果作了比较分析，建立了RNASA－TLX指标在不同驾驶环境条件下的回归方程。

Comparison of Mental Workload Evaluation Techniques Based on the Driving Environment with Navigation System

For pilots and drivers in ITS (intelligent transportation system), the high density of information in driving environments with advanced technology generates some requests for workload evaluation techniques. In this paper, four typical subjective mental workload evaluation techniques are reviewed. With the four methods, the evaluation calculations on the data of experiments in three different driving environments are made. The calculated results are compared by sensitivity analysis as well as the subjective evaluation of participants, and the regression functions of RNASA TLX indexes for the three different driving environments are set up.