BS EN ISO 11819-2:2017规定了在轮胎/道路噪声占主导地位的情况下，评估不同路面对交通噪声影响的方法。对结果的解释适用于在基本平坦的道路上以40 km/h及以上的恒定速度行驶的自由流动交通，在这种情况下，假设轮胎/道路噪声占主导地位（尽管在一些国家，当重型车辆比例较高时，轮胎/道路噪声可能在40 km/h时不占主导地位）。对于交通不自由流动的其他驾驶条件，例如在交叉口或高加速度下，以及交通拥挤的情况，路面对噪声排放的影响更为复杂。对于纵坡较高且重型车辆比例较高的道路也是如此。比较路面噪声特性的标准方法为道路和环境主管部门提供了一种工具，用于确定符合特定噪声标准的路面使用的常规做法或限制。 然而，提出此类标准不在本文件的范围内。 ISO 11819-1定义了另一种方法:统计传递（SPB）方法。本文件中规定的近距离（CPX）方法与SPB方法具有相同的主要目标，但旨在专门用于补充该方法的应用中，例如:几乎任何任意场地的路面噪声表征，主要目的是检查是否符合表面规范（参考文献[1]中建议的生产一致性示例）；检查维护和状态的声学效果，例如表面的磨损和损坏，以及堵塞和多孔表面的清洁效果；检查路段的纵向和横向均匀性；开发更安静的路面和研究轮胎/道路相互作用。交叉引用:ISO/TS 11819- 3:2017ISO 11819-1:1997IEC 61260-1:2014ISO/IEC指南98-3:2008 Ed 1IEC 61672-1:2013ISO/TR 22971:2005 Ed 1IEC 60942:2003ISO/TS 13471-1:2017 ISO 13472-1:2002 Ed 1（R08）ISO 80000-2:2009 Ed 1ISO 10844:2014 Ed 3ISO 3911:2004 Ed 3ISO 13473-1:1997购买本文件时可用的所有现行修订版均包含在购买本文件中。

BS EN ISO 11819-2:2017 specifies a method of evaluating different road surfaces with respect to their influence on traffic noise, under conditions when tyre/road noise dominates. The interpretation of the results applies to free-flowing traffic travelling on essentially level roads at constant speeds of 40 km/h and upwards, in which cases tyre/road noise is assumed to dominate (although in some countries it is possible that tyre/road noise does not dominate at 40 km/h when the proportion of heavy vehicles is high). For other driving conditions where traffic is not free-flowing, such as at junctions or under heavy acceleration, and where the traffic is congested, the influence of the road surface on noise emission is more complex. This is also the case for roads with high longitudinal gradients and a high proportion of heavy vehicles.A standard method for comparing noise characteristics of road surfaces gives road and environment authorities a tool for establishing common practices or limits as to the use of surfacings meeting certain noise criteria. However, it is not within the scope of this document to suggest such criteria. ISO 11819-1 defines another method: the statistical pass-by (SPB) method. The close-proximity (CPX) method specified in the present document has the same main objectives as the SPB method, but is intended to be used specifically in applications that are complementary to it, such as:noise characterization of road surfaces at almost any arbitrary site, with the main purpose of checking compliance with a surface specification (an example for conformity of production is suggested in Reference [1]);checking the acoustic effect of maintenance and condition, e.g. wear of and damage to surfaces, as well as clogging and the effect of cleaning of porous surfaces;checking the longitudinal and lateral homogeneity of a road section;the development of quieter road surfaces and research on tyre/road interaction.Cross References:ISO/TS 11819-3:2017ISO 11819-1:1997IEC 61260-1:2014ISO/IEC GUIDE 98-3:2008 Ed 1IEC 61672-1:2013ISO/TR 22971:2005 Ed 1IEC 60942:2003ISO/TS 13471-1:2017 ISO 13472-1:2002 Ed 1 (R08)ISO 80000-2:2009 Ed 1ISO 10844:2014 ED3ISO 3911:2004 Ed 3ISO 13473-1:1997All current amendments available at time of purchase are included with the purchase of this document.