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Distraction of Connected Vehicle Human–Machine Interface for Truck Drivers
Transportation Research Record: Journal of the Transportation Research Board ( IF 1.7 ) Pub Date : 2020-07-07 , DOI: 10.1177/0361198120929692
Guangchuan Yang 1 , Mohamed M. Ahmed 1, 2 , Biraj Subedi 1
Affiliation  

Connected vehicle (CV) technology aims to improve drivers’ situational awareness through audible and visual warnings, commonly displayed on a human–machine interface (HMI), thus reducing the likelihood of crashes caused by human error. Nevertheless, the presence of an in-vehicle CV HMI may pose an increasing threat to driver distraction, particularly for truck drivers and under high workload driving conditions. With this concern, this research investigated the effects of a HMI developed by the Wyoming Department of Transportation CV Pilot on truck drivers’ cognitive distraction and driving behavior through a driving simulator experiment. Revealed preference survey and vehicle dynamics data were employed to assess the cognitive distractions of the Pilot’s HMI. Simulation results indicated that when CV warnings were displayed on the HMI, they did not introduce significant effects on participants’ longitudinal and lateral control of the vehicle. Nevertheless, from the revealed preference survey, it was found that approximately 27% of the participants indicated that the CV HMI tended to introduce additional visual workload for them, particularly when approaching an active freeway work zone under reduced visibility condition. In this regard, this research pointed out that the design of CV warnings and HMI displays needs to incorporate drivers’ ability to recognize and react safely to the received CV warnings to minimize the cognitive distractions introduced by the CV HMI.



中文翻译:

分散连接卡车司机的车辆人机界面

互联车辆(CV)技术旨在通过通常在人机界面(HMI)上显示的声音和视觉警告来提高驾驶员的态势感知,从而降低人为错误导致撞车的可能性。然而,车载CV HMI的存在可能对驾驶员分心构成越来越大的威胁,特别是对于卡车驾驶员和在高工作负荷驾驶条件下。考虑到这一点,本研究通过驾驶模拟器实验研究了怀俄明州交通部CV Pilot所开发的HMI对卡车驾驶员的认知分散和驾驶行为的影响。揭示性偏好调查和车辆动力学数据用于评估飞行员HMI的认知分散性。仿真结果表明,在HMI上显示CV警告时,它们不会对参与者的车辆纵向和横向控制产生重大影响。然而,从公开的偏好调查中发现,约有27%的参与者表示CV HMI倾向于为他们引入额外的视觉工作量,尤其是在能见度较低的情况下接近主动高速公路工作区时。在这方面,这项研究指出,CV警告和HMI显示器的设计需要结合驾驶员识别和安全响应收到的CV警告的能力,以最大程度地减少CV HMI引入的认知干扰。结果发现,大约有27%的参与者表示CV HMI倾向于给他们带来额外的视觉工作量,特别是在能见度较低的情况下接近主动高速公路工作区时。在这方面,这项研究指出,CV警告和HMI显示器的设计需要结合驾驶员识别和安全响应收到的CV警告的能力,以最大程度地减少CV HMI引入的认知干扰。结果发现,大约有27%的参与者表示CV HMI倾向于给他们带来额外的视觉工作量,特别是在能见度较低的情况下接近主动高速公路工作区时。在这方面,这项研究指出,CV警告和HMI显示器的设计需要结合驾驶员识别和安全响应收到的CV警告的能力,以最大程度地减少CV HMI引入的认知干扰。

更新日期:2020-07-08
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