1.1 本试验方法描述了使用直尺和量规测量路面选定位置处车辙深度的程序。 1.2 以国际单位制或英寸磅单位表示的数值应单独视为标准值。在文本中，英寸磅单位显示在括号中。每个系统中规定的值并非完全相等；因此，每个系统必须独立使用。组合两个系统的值可能会导致不符合规范。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 4.1 车辙路面可能会对车辆操纵特性产生不利影响，并可能阻碍路面排水，这可能会降低摩擦财产并有助于滑水。车辙表明路面材料变形或磨损，可能表明沥青流动、固结、剪切或路面材料损失等问题。 4.2 使用此测试方法获得的车辙深度值可能与使用其他方法获得的值不太相关。

1.1 This test method describes the procedure for the measurement of the depth of the rut at a chosen location in a pavement surface using a straightedge and a gauge. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Rutted pavement surfaces may have an adverse influence on vehicle handling characteristics and may impede surface drainage, which may reduce friction properties and contribute to hydroplaning. Rutting indicates deformation or wear of materials in the pavement and may be indicative of problems such as asphalt flow, consolidation, shear, or loss of pavement materials. 4.2 The rut-depth value obtained using this test method may not correlate well with values obtained using other methods.