%0 Journal Article
%T 驾驶人次任务转换特性研究<br>Research on characteristics of driver task conversion
%A 王磊
%A 杨明煊
%A 孙宇
%A 朱彤
%A 周育名
%J 长安大学学报(自然科学版)
%D 2018
%X 为探究驾驶人次任务完成后对速度判断的影响，以及次任务难度和任务间隔时间2个因素对任务转换代价的具体影响，利用E？？Prime软件设计了典型的包含主次任务的试验场景，其中替代型主任务为判断车速，替代型次任务为判断箭头方向。共有87位被试者参与了试验，根据要求做出判断并按键反应；试验将次任务的难度和任务间隔时间作为2个因变量，每个因变量取2种水平，共设计了4组试验，每组试验还包括连续执行主任务和执行次任务之后再执行主任务2种情况。研究结果表明：由次任务转换到主任务后的平均反应时间比持续执行主任务情况下的平均反应时间更长，且二者有显著性差异（？？p？？<0.01）；次任务难度对驾驶人的反应时间有显著影响（？？p？？=？？0.003？？）；任务间隔时间对驾驶人反应时间的影响不显著，并且次任务难度和任务间隔2个因素没有显著的交互作用；驾驶人在次任务结束之后执行主任务时仍然会受到影响，此外性别、年龄等因素对反应时间也有显著影响。研究结论可用于车载信息系统的优化设计。<br>In order to study the factors that influencing the speed judgment after finishing a secondary task，and to study how the difficulty of the secondary task and respond clue interval influences the switching cost, a typical experiment scenario based on E？？Prime was developed. In the experiment, the driving speed judgment task was selected as the main task, and a typical alternative driving distraction task (arrow direction selection task) was selected as the secondary task. Eighty？？seven participants participated in this experiment and made judgments according to the quality. For the experiment, secondary task complexity and task interval were considered as two independent variables, and each variable had two experimental levels. There were four groups of experiments, and each group included two situations, doing two adjacent main tasks and switching to the main task after finishing the secondary task. The results show that the driver？？s reponse time for the main task is more after switching from the secondary task to the main task, compared to performing two adjacent main tasks, and there are significant differences (？？p？？<0.01). The driver？？s reponse time for the primary task increased when the secondary task became complex, and there are significant differences (？？p？？<0.001). When the task interval changed from 200 ms to 2 000 ms, there is no significant effect on the average reponse time for the primary task. There is no significant interaction between the two factors. It still has an influence on the main task after finishing the secondary task. Besides these factors, gender and age also have an impact on the reponse time. The conclusions of this study can provide a reference for the optimal design of in？？vehicle information systems. 5 tabs, 7 figs, 30 refs
%K 交通工程
%K 交通安全
%K 驾驶人分心
%K 任务转换
%K 反应时间&lt
%K br&gt
%K traffic engineering
%K traffic safety
%K driver distraction
%K task conversion
%K response time
%U http://zzszrb.chd.edu.cn/oa/DArticle.aspx?type=view&id=201804010