1.1本规程涵盖了从路面宏观纹理轮廓计算平均轮廓深度。 1.2平均剖面深度已被证明有助于预测湿路面摩擦的速度常数（梯度）。 1.3平均轮廓深度的线性变换可以提供根据试验方法E 965测量的平均纹理深度的估计值。 1.4以SI（公制）单位表示的值应视为标准值。英寸-磅当量是合理的，而不是精确的数学转换。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This practice covers the calculation of mean profile depth from a profile of pavement macrotexture. 1.2 The mean profile depth has been shown to be useful in predicting the speed constant (gradient) of wet pavement friction. 1.3 A linear transformation of the mean profile depth can provide an estimate of the mean texture depth measured according to Test Method E 965. 1.4 The values stated in SI (metric) units are to be regarded as standard. The inch-pound equivalents are rationalized, rather than exact mathematical conversions. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.