ABSTRACT

This study demonstrated that skid resistance testing in traffic direction does not provide a complete evaluation of traffic polishing effect on pavement skid resistance. Directional British pendulum tests were performed on 14 pavement sections involving the following six modes of vehicle operation: (A) Acceleration, (B) Deceleration, (C) Moving from stop, (D) Stopping, (E) Constant-speed cruising, and (F) Cruising without constant-speed setting. Test results confirmed that there were statistically significant differential directional polishing effects in practically all modes of vehicle operation. The relative magnitudes of polishing action of different modes were evaluated. The strongest polishing effects were produced by mode A in the against-traffic direction, and mode B in the traffic direction. The next stronger polishing effect was achieved by the combined mode (C + D) in the traffic as well as the against-traffic direction. Comparatively, the lowest polishing effect was produced by modes E and F, in either the traffic or against-traffic direction. Test results also revealed different polishing directions and magnitudes caused by driving and driven wheels. Driving wheels were found to produce significantly stronger polishing effect than driven wheels.

摘要

本研究表明，交通方向的防滑性测试并不能全面评估交通抛光对路面防滑性的影响。在涉及以下六种车辆运行模式的 14 个路面路段上进行了定向英国摆测试：(A) 加速，(B) 减速，(C) 从停止移动，(D) 停止，(E) 匀速巡航和(F) 没有恒速设置的巡航。测试结果证实，在几乎所有车辆操作模式中，都存在统计学上显着的不同方向抛光效果。评估了不同模式的抛光作用的相对大小。最强的抛光效果是在逆行方向上由模式 A 产生，在交通方向上由模式 B 产生。下一个更强的抛光效果是通过交通和逆交通方向的组合模式（C + D）实现的。相比之下，模式 E 和 F 产生的抛光效果最低，无论是在交通方向还是逆交通方向。测试结果还揭示了由驱动轮和从动轮引起的不同抛光方向和幅度。发现驱动轮比从动轮产生明显更强的抛光效果。