With the introduction of advanced driving assistance systems managing longitudinal and lateral control, conditional automated driving is seemingly in near future of series vehicles. While take-over behavior in the passenger car context has been investigated intensively in recent years, publications on semi-trucks with professional drivers are sparse. The effects influencing expert drivers during take-overs in this context lack thorough investigation and are required to design systems that facilitate safe take-overs. While multiple findings seem to cohere in passenger cars and semi-trucks, these findings rely on simulated studies without taking environments as found in the real world into account. A test track study was conducted, simulating highway driving with 27 professional non-affiliated truck drivers. The participants drove an automated Level 3 semi-truck while a non-driving-related task was available. Multiple time critical take-over situations were initiated during the drives to investigate four main objectives regarding driver behavior. (1) With these results, comparison of reaction times and behavior can be drawn to previous simulator studies. The effect of situation criticality (2) and training (3) of take-over situations is investigated. (4) The influence of warning expectation on driver behavior is explored. Results obtained displayed very quick time to hands on steering and time to first reaction all under 2.4 s. Highly critical situations generate very quick reaction times M = 0.81 s, while the manipulation of expectancy yielded no significant variation in reaction times. These reaction times serve as a reference of what can be expected from drivers under optimal take-over conditions, with quick reactions at high speed in critical situations.

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3 级自动驾驶中的接管期望和临界性：半卡车接管行为的测试轨道研究

随着管理纵向和横向控制的先进驾驶辅助系统的引入，有条件的自动驾驶似乎在不久的将来系列车辆。虽然近年来对乘用车环境中的接管行为进行了深入研究，但关于配备专业司机的半卡车的出版物却很少。在这种情况下，在接管过程中影响专家司机的影响缺乏彻底的调查，需要设计有利于安全接管的系统。虽然乘用车和半卡车似乎有多项发现，但这些发现依赖于模拟研究，而没有考虑现实世界中的环境。进行了一项测试轨道研究，模拟了 27 名非附属专业卡车司机的高速公路驾驶。参与者驾驶一辆自动化的 3 级半卡车，同时有一项与驾驶无关的任务。在驾驶期间启动了多个时间关键接管情况，以调查有关驾驶员行为的四个主要目标。(1) 根据这些结果，可以将反应时间和行为与以前的模拟器研究进行比较。调查了接管情况的情况危急程度 (2) 和培训 (3) 的影响。(4)探讨了警告期望对驾驶员行为的影响。获得的结果显示，手动转向的时间和第一反应的时间都在 2.4 秒以内。高度危急的情况会产生非常快的反应时间 M = 0.81 s，而预期的操纵不会产生反应时间的显着变化。