Faculty of Transport and Traffic Sciences, University of Zagreb, Vukelićeva 4, 10000 Zagreb, Croatia.
Institute of Automotive Engineering, Graz University of Technology, Inffeldgasse 11/II, A-8010 Graz, Austria.
Sensors (Basel). 2022 Feb 9;22(4):1303. doi: 10.3390/s22041303.
(1) Background: Due to its high safety potential, one of the most common ADAS technologies is the lane support system (LSS). The main purpose of LSS is to prevent road accidents caused by road departure or entrance in the lane of other vehicles. Such accidents are especially common on rural roads during nighttime. In order for LSS to function properly, road markings should be properly maintained and have an adequate level of visibility. During nighttime, the visibility of road markings is determined by their retroreflectivity. The aim of this study is to investigate how road markings' retroreflectivity influences the detection quality and the view range of LSS. (2) Methods: An on-road investigation comprising measurements using Mobileye and a dynamic retroreflectometer was conducted on four rural roads in Croatia. (3) Results: The results show that, with the increase of markings' retroreflection, the detection quality and the range of view of Mobileye increase. Additionally, it was determined that in "ideal" conditions, the minimal value of retroreflection for a minimum level 2 detection should be above 55 mcd/lx/m and 88 mcd/lx/m for the best detection quality (level 3). The results of this study are valuable to researchers, road authorities and policymakers.
(1) 背景：由于其高安全性潜力，最常见的 ADAS 技术之一是车道支持系统（LSS）。LSS 的主要目的是防止因车辆偏离车道或进入其他车辆车道而导致的道路事故。此类事故在夜间尤其常见于农村道路。为了使 LSS 正常运行，道路标线应得到妥善维护，并具有足够的可见度。夜间，道路标线的可见度取决于其逆反射率。本研究旨在研究道路标线的逆反射率如何影响 LSS 的检测质量和视场范围。(2) 方法：在克罗地亚的四条农村道路上进行了包括使用 Mobileye 和动态逆反射计进行测量的现场调查。(3) 结果：结果表明，随着标记逆反射率的增加，Mobileye 的检测质量和视场范围增加。此外，还确定在“理想”条件下，用于最低级别 2 检测的最小逆反射值应高于 55 mcd/lx/m，用于最佳检测质量（级别 3）的最小逆反射值应高于 88 mcd/lx/m。本研究的结果对研究人员、道路当局和政策制定者具有重要价值。
