1.1 本试验方法描述了确定路面表面宏观纹理平均深度的程序（见 3.1 ) ( 1. ) 2. 通过在表面上仔细涂抹已知体积的材料，然后测量覆盖的总面积。该技术旨在仅提供路面宏观纹理的平均深度值，并被认为对路面微观纹理特征不敏感。 1.2 使用该程序确定平均路面宏观结构深度的结果不一定与其他路面宏观结构测量方法获得的结果一致或直接相关 ( 1- 5. ). 1.3 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.4 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。 ====意义和用途====== 5.1 该试验方法适用于研究和开发目的以及现场试验，以确定路面的平均宏观纹理深度。路面宏观纹理深度的知识可作为表征路面表面纹理的工具。当与其他物理试验结合使用时，从本试验方法得出的宏观纹理深度值可用于确定路面防滑能力以及铺路材料或饰面技术的适用性。当与其他测试一起使用时，应注意所有测试同时进行 地方使用该试验方法可能会改善路面修整实践和维护计划。 5.2 使用本试验方法产生的纹理深度测量值受路面宏观纹理特征的影响，而不受路面微观纹理的显著影响。路面骨料颗粒形状、大小和分布是本程序中未涉及的纹理特征。本试验方法并不旨在提供路面表面纹理特征的完整评估。 5.3 通过本试验方法以及本文所述设备和程序测量的路面宏观纹理深度值不一定与其他表面纹理测量技术一致或直接相关。 注2: 使用本试验方法测量的路面表面必须干燥，无任何施工残留物、表面碎屑和松散骨料颗粒，这些颗粒在正常环境和交通条件下会移位或清除。

1.1 This test method describes a procedure for determining the average depth of pavement surface macrotexture (see 3.1 ) ( 1 ) 2 by careful application of a known volume of material on the surface and subsequent measurement of the total area covered. The technique is designed to provide an average depth value of only the pavement macrotexture and is considered insensitive to pavement microtexture characteristics. 1.2 The results obtained using this procedure to determine average pavement macrotexture depths do not necessarily agree or correlate directly with those obtained by other pavement macrotexture measuring methods ( 1- 5 ). 1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 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. ====== Significance And Use ====== 5.1 This test method is suitable for research and development purposes and for field tests to determine the average macrotexture depth of a pavement surface. The knowledge of pavement macrotexture depth serves as a tool in characterizing the pavement surface texture. When used in conjunction with other physical tests, the macrotexture depth values derived from this test method may be used to determine the pavement skid resistance capability and the suitability of paving materials or finishing techniques. When used with other tests, care should be taken that all tests are applied at the same location. Improvements in pavement finishing practices and maintenance schedules may result from use of this test method. 5.2 The texture depth measurements produced using this test method are influenced by pavement macrotexture characteristics and not significantly affected by pavement microtexture. Pavement aggregate particle shape, size, and distribution are texture features not addressed in this procedure. This test method is not meant to provide a complete assessment of pavement surface texture characteristics. 5.3 The pavement macrotexture depth values measured by this test method, with the equipment and procedures stated herein, do not necessarily agree or correlate directly with other techniques of surface texture measurements. Note 2: The pavement surface to be measured using this test method must be dry and free of any construction residue, surface debris, and loose aggregate particles that would be displaced or removed during normal environmental and traffic conditions.