Department of Industrial Engineering & Management, Ariel University, Ariel 4076414, Israel.
Int J Environ Res Public Health. 2023 Feb 23;20(5):4005. doi: 10.3390/ijerph20054005.
Reducing drivers' stress can potentially increase road safety. However, state-of-the-art physiological stress indices are intrusive and limited by long time lags. Grip force is an innovative index of stress that is transparent to the user and, according to our previous findings, requires a two- to five-second time window. The aim of this study was to map the various parameters affecting the relationship between grip force and stress during driving tasks. Two stressors were used: the driving mode and the distance from the vehicle to a crossing pedestrian. Thirty-nine participants performed a driving task during either remote driving or simulated driving. A pedestrian dummy crossed the road without warning at two distances. The grip force on the steering wheel and the skin conductance response were both measured. Various model parameters were explored, including time window parameters, calculation types, and steering wheel surfaces for the grip force measurements. The significant and most powerful models were identified. These findings may aid in the development of car safety systems that incorporate continuous measurements of stress.
降低驾驶员的压力有可能提高道路安全。然而，最先进的生理压力指数具有侵入性，并且受到长时间延迟的限制。握力是一种创新的压力指标，对用户是透明的，根据我们之前的发现，它需要两到五秒的时间窗口。本研究的目的是绘制各种参数，以映射在驾驶任务期间握力和压力之间的关系。使用了两种压力源：驾驶模式和车辆与过路人的距离。39 名参与者在远程驾驶或模拟驾驶中执行驾驶任务。一名行人假人在两个距离处无预警穿过马路。测量了方向盘上的握力和皮肤电导率反应。探索了各种模型参数，包括时间窗口参数、计算类型以及方向盘表面的握力测量。确定了显著且最有力的模型。这些发现可能有助于开发汽车安全系统，该系统将包含对压力的连续测量。
