a The Swedish National Road and Transport Research Institute (VTI) , Sweden.
b Volvo Bus Corporation , Sweden.
Int J Occup Saf Ergon. 2019 Sep;25(3):377-385. doi: 10.1080/10803548.2018.1445465. Epub 2018 Mar 26.
City bus drivers spend hours driving under time pressure, in congested traffic and in a monotonous sitting position. This leads to unhealthy working conditions, especially in terms of physical and psychological stress. The aim of this study is to investigate whether an active steering system can alleviate the musculoskeletal stress involved in manoeuvring a bus. Twenty bus drivers drove a city bus equipped with the Volvo dynamic steering (VDS) support system in real traffic. Steering effort was evaluated with electromyography and with a questionnaire. Compared to baseline, VDS significantly reduced the required muscle activity by on average 15-25% while turning, and up to 68% in the part of the manoeuvre requiring maximum effort. The bus drivers believed that VDS will help reduce neck and shoulder problems, and they expressed a desire to have VDS installed in their own bus.
城市公交车司机在时间压力下、在拥堵的交通中以及单调的坐姿下长时间驾驶。这导致了不健康的工作条件，尤其是在身体和心理压力方面。本研究旨在调查主动转向系统是否能减轻驾驶公交车时的肌肉骨骼压力。二十名公交车司机在实际交通中驾驶配备有沃尔沃动态转向（VDS）支持系统的城市公交车。通过肌电图和问卷调查评估转向力。与基线相比，VDS 在转弯时平均减少了 15-25%的肌肉活动，在需要最大努力的操作部分减少了高达 68%。公交车司机认为 VDS 将有助于减少颈部和肩部问题，他们表示希望在自己的公交车上安装 VDS。
