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基于试验数据,分析使用车载导航系统对驾驶员脑力负荷的影响,以及任务难度、时间压力、驾驶经验、性别差异等因素在该任务中的实际影响效果。通过编程模拟驾驶员使用车载导航系统进行驾驶的任务,采取主任务评价法作为脑力负荷的评价方法。选取偏离正确路线的次数、偏离的水平位移、到达预定目标所用时间、偏离方向的次数、根据导航系统提示完成相应动作的反应时间5个参数作为评价指标,选取40名大学生作为被试完成主任务(追踪)和辅任务(使用车载导航系统的脑力工作)。对试验数据进行比较分析,结果表明,车载导航系统的使用在一定程度上加大了驾驶员的脑力负荷,并随驾驶难度的增加而加剧。任务难度、工作时间及驾驶经验等因素都对使用车载导航系统的驾驶员的脑力负荷产生影响,而性别差异的影响并不明显、
Based on the experimental data, the paper analyzes the influence of using the car navigation system on the driver’s mental workload, and the actual effect of the task in the task, such as task difficulty, time pressure, driving experience, gender differences and other factors. Through programming to simulate the driver’s task of using the car navigation system for driving, the main task evaluation method is adopted as a method for evaluating the mental workload. Choose the number of deviations from the correct route, the horizontal displacement deviated, the time taken to reach the scheduled target, the number of deviations from the direction. According to the five parameters of the response time prompted by the navigation system to complete the corresponding action, 40 college students were selected as subjects to complete the main task (Tracking) and auxiliary tasks (using the car navigation system’s mental work). The test data are compared and the results show that the use of car navigation system to a certain extent, increased the driver’s mental workload, and increased with the difficulty of driving increased. Factors such as task difficulty, working time and driving experience have an impact on the mental workload of drivers who use in-vehicle navigation systems, and the impact of gender differences is not obvious.