Awan Hammad Hussain, Pirdavani Ali, Houben Arne, Westhof Sander, Adnan Muhammad, Brijs Tom
a Transportation Research Institute (IMOB), UHasslet , Agoralaan , Diepenbeek , Belgium.
b Faculty of Engineering Technology , UHasselt , Agoralaan , Diepenbeek , Belgium.
Traffic Inj Prev. 2019;20(1):93-99. doi: 10.1080/15389588.2018.1532568. Epub 2019 Mar 1.
The probability of crash occurrence on horizontal curves is 1.5 to 4 times higher than that on tangent sections. A majority of these crashes are associated with human errors. Therefore, human behavior in curves needs to be corrected.
In this study, 2 different road marking treatments, optical circles and herringbone patterns, were used to influence driver behavior while entering a curve on a 2-lane rural road section. A driving simulator was used to perform the experiment. The simulated road sections are replicas of 2 real road sections in Flanders.
Both treatments were found to reduce speed before entering the curve. However, speed reduction was more gradual when optical circles were used. A herringbone pattern had more influence on lateral position than optical circles by forcing drivers to maintain a safe distance from opposing traffic in the adjacent lane.
The study concluded that among other low-cost speed reduction methods, optical circles are effective tools to reduce speed and increase drivers' attention. Moreover, a herringbone pattern can be used to reduce crashes on curves, mainly for head-on crashes where the main problem is inappropriate lateral position.
在水平弯道上发生碰撞的概率比直线段高1.5至4倍。这些碰撞大多数与人为失误有关。因此，需要纠正驾驶员在弯道上的行为。
在本研究中，使用了两种不同的道路标线处理方式，即光学圆圈和人字形图案，以影响驾驶员在双车道乡村路段驶入弯道时的行为。使用驾驶模拟器进行实验。模拟路段是佛兰德两个真实路段的复制品。
两种处理方式均能在驶入弯道前降低车速。然而，使用光学圆圈时车速降低更为平缓。人字形图案通过迫使驾驶员与相邻车道的对向车辆保持安全距离，对横向位置的影响比光学圆圈更大。
该研究得出结论，在其他低成本减速方法中，光学圆圈是降低车速和提高驾驶员注意力的有效工具。此外，人字形图案可用于减少弯道上的碰撞，主要针对主要问题是横向位置不当的正面碰撞。
