Guan Yanyan, Hu Jiangbi, Wang Ronghua, Cao Qingyun, Xie Fangchen
Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, 100124, China.
Guizhou Naqing Expressway Co. Ltd, Guizhou, 553400, China.
Heliyon. 2024 Aug 19;10(16):e36533. doi: 10.1016/j.heliyon.2024.e36533. eCollection 2024 Aug 30.
At night, clear pavement markings are essential for driver safety. Currently, markings visibility evaluation relies on the retroreflectivity, but the impact of line width is unclear. To quantify the impact of line width on visibility and to refine visibility evaluation methods, a driver visual detection experiment was designed using both qualitative and quantitative approaches. Twenty-four drivers of small vehicles were randomly recruited to participate in visual detection tests of a total of 54 white pavement markings (comprising 6 widths and 9 retroreflectivity levels) under the illumination of high beams, following the principle of using the "emergence point" as the critical state for assessing pavement marking visibility. This study indicated that widening pavement markings significantly enhances their visibility, particularly for markings with low retroreflectivity. A visibility evaluation model was established to quantify the impact of width and retroreflectivity on the visual distance of markings. The model confirms that widening markings can improve visibility, thereby reducing the required level of retroreflectivity. The research methodology and findings provide technical support for managers to more accurately assess nighttime safety visibility during pavement marking operation and maintenance.
夜间，清晰的路面标线对驾驶员安全至关重要。目前，标线能见度评估依赖于反光性，但线宽的影响尚不清楚。为了量化线宽对能见度的影响并完善能见度评估方法，设计了一项驾驶员视觉检测实验，采用定性和定量方法。随机招募了24名小型车辆驾驶员，在远光灯照明下，按照以“出现点”作为评估路面标线能见度的临界状态的原则，对总共54条白色路面标线（包括6种宽度和9种反光性水平）进行视觉检测测试。本研究表明，加宽路面标线可显著提高其能见度，尤其是对于反光性低的标线。建立了一个能见度评估模型，以量化宽度和反光性对标线可视距离的影响。该模型证实，加宽标线可提高能见度，从而降低所需的反光性水平。研究方法和结果为管理人员在路面标线运营和维护期间更准确地评估夜间安全能见度提供了技术支持。
