Abstract
Long-time driving and monotonous visual environment increase the safety risk of driving in an extra-long tunnel. Driving fatigue can be effectively relieved by setting the visual fatigue relief zone in the tunnel. However, the setting form of visual fatigue relief zone, such as its length and location, is difficult to be designed and quantified. By integrating virtual reality (VR) apparatus with wearable electroencephalogram (EEG) -based devices, a hybrid method was proposed in this study to assist analyzers to formulate the layout of visual fatigue relief zone in the extra-long tunnel. The virtual environment of this study was based on an 11.5 km extra-long tunnel located in Yunnan Province in China. The results indicated that the use of natural landscape decoration inside the tunnel could improve driving fatigue with the growth rate of attention of the driver increased by more than 20%. The accumulation of driving fatigue had a negative effect on the fatigue relief. The results demonstrated that the optimal location of the fatigue relief zone was at the place where driving fatigue had just occurred rather than at the place where a certain amount of driving fatigue had accumulated.
摘要
超长隧道行车时间长, 视觉环境单调, 影响行车安全, 增加了风险。通过在隧道内设置视觉疲劳缓解带, 可以有效缓解行车疲劳。然而, 视觉疲劳缓解带的设置形式, 如其长度和位置, 难以设计和量化。本研究提出了一种将虚拟现实设备与可穿戴式EEG设备集成的混合方法, 以辅助设计人员设计超长隧道中的视觉疲劳缓解带。本研究的虚拟环境是基于云南某11.5 km超长隧道。结果表明, 在隧道内使用自然景观装饰可以改善驾驶疲劳, 驾驶人的注意力增长率提高20%以上。然而驾驶疲劳的累积对疲劳缓解效果有负面影响, 因此疲劳缓解带的最佳位置是在驾驶疲劳刚出现的位置, 而不是在积累了一定数量的驾驶疲劳的位置。
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Funding
Project(2018YFB2101000) supported by the National Key R&D Program of China; Project(20YF1451400) supported by Shanghai Sailing Program, China; Project(SLDRCE19-A-14) supported by the Research Fund of State Key Laboratory for Disaster Reduction in Civil Engineering, China
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LI Xiao-jun provided the concept and edited the draft of manuscript. LING Jia-xin conducted the experiment and wrote the first draft of the manuscript. SHEN Yi provided the methodology and edited the draft of manuscript. All authors replied to reviewers’ comments and revised the final version.
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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Li, Xj., Ling, Jx. & Shen, Y. Visual fatigue relief zone in an extra-long tunnel using virtual reality with wearable EEG-based devices. J. Cent. South Univ. 28, 3871–3881 (2021). https://doi.org/10.1007/s11771-021-4882-8
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DOI: https://doi.org/10.1007/s11771-021-4882-8