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速度是影响路面抗滑性能的重要因素,为改善路面抗滑性能评价中对速度因素考虑的不足,深入分析了路面抗滑性能对交通安全的影响以及交通安全评价对路面抗滑性能指标的需求。依托动态摩擦系数测试仪,构建了参考制动距离指标。该指标隐含了速度对路面抗滑性能的影响,具有清晰的物理意义,直观地反映了路面抗滑性能对交通安全的影响。通过11个路段、33个测点的现场测试和对比分析表明,基于动态摩擦系数测试仪的参考制动距离指标对抗滑性能的描述更为细致和准确,更为适应交通安全评价的需求。
Speed is an important factor that affects the anti-slip performance of pavement. In order to improve the anti-slip performance of the pavement, the paper takes into consideration of the lack of consideration of the speed factor. The influence of pavement slip resistance on traffic safety and the demand of anti-slip performance index of traffic safety evaluation . Relying on the dynamic friction coefficient tester, the reference braking distance index was constructed. The index implies the influence of speed on the anti-sliding performance of the pavement, has a clear physical meaning and intuitively reflects the impact of anti-sliding performance of the pavement on traffic safety. The field test and comparative analysis of 33 measuring points through 11 road sections show that the reference braking distance index based on the dynamic friction coefficient tester can describe the anti-skid performance more meticulously and accurately and is more suitable for the needs of traffic safety assessment.