University of Idaho, 875 Perimeter Drive MS 0901, Moscow, ID, 83844-0901, United States.
Accid Anal Prev. 2019 Jul;128:87-93. doi: 10.1016/j.aap.2019.03.011. Epub 2019 Apr 13.
Single vehicle crashes, particularly those classified as run-off-the-road, are very common on two-lane rural highways. One method to potentially reduce such crashes is to provide additional driver information in the form of wider longitudinal edgeline pavement markings. However, since these markings deteriorate over time, the primary objective of this research was to study the effects of longitudinal edgeline pavement markings with varying deterioration levels and widths and to assess a driver's ability to maintain lane position. The University of Idaho's driving simulator was used to examine these effects by incorporating different marking deterioration percentages and roadway geometries on a two-lane rural highway environment. Two different pavement marking widths (4 and 6 inch) and four different deterioration levels (0%, 25%, 50%, and 75%) were assessed in daytime and nighttime conditions as part of this study. The results determined that while wider 6-in longitudinal edgeline pavement markings compared with standard four inch edgeline markings did not cause any significant changes in driver lane deviation during the day, statistically significant differences were observed in nighttime driving conditions. Drivers consistently maintained a lane position that slightly favored the edgeline side throughout the study and increasingly shifted away from the centerline as edgeline deterioration worsened.
单辆车辆碰撞，特别是那些被归类为驶离道路的碰撞，在双车道农村公路上非常常见。一种潜在的减少此类碰撞的方法是提供更宽的纵向边缘线路面标记形式的额外驾驶员信息。然而，由于这些标记会随着时间的推移而恶化，因此本研究的主要目的是研究具有不同恶化程度和宽度的纵向边缘线路面标记的效果，并评估驾驶员保持车道位置的能力。爱达荷大学的驾驶模拟器用于通过在双车道农村公路环境中结合不同的标记恶化百分比和道路几何形状来研究这些效果。作为本研究的一部分，评估了两种不同的路面标记宽度（4 和 6 英寸）和四种不同的恶化程度（0%、25%、50%和 75%）在白天和夜间条件下的效果。结果表明，虽然与标准的四英寸边缘线标记相比，6 英寸宽的纵向边缘线标记在白天没有导致驾驶员车道偏离发生任何显著变化，但在夜间驾驶条件下观察到了统计学上的显著差异。驾驶员在整个研究过程中始终保持略微偏向边缘线的车道位置，并随着边缘线恶化的加剧，逐渐偏离中心线。
