Modeling road traffic noise levels without including the effects of meteorology may lead to substantial errors. In the United States, the required model is the Traffic Noise Model which does not include meteorology effects caused by refraction. In response, the Transportation Research Board sponsored NCHRP 25-52, Meteorological Effects on Roadway Noise, to collect highway noise data under different meteorological conditions, document the meteorological effects on roadway noise propagation under different atmospheric conditions, develop best practices, and provide guidance on how to: (a) quantify meteorological effects on roadway noise propagation; and (b) explain those effects to the public. The completed project at 16 barrier and no-barrier measurement positions adjacent to Interstate 17 (I-17) in Phoenix, Arizona provided the database which has enabled substantial developments in modeling. This report provides more recent information on the model development that can be directly applied by the noise analyst to include meteorological effects from simple look-up tables to more precise use of statistical equations.

在不包括气象影响的情况下对道路交通噪声水平进行建模可能会导致重大错误。在美国，所需模型是交通噪声模型，其中不包括折射引起的气象效应。对此，运输研究委员会赞助了NCHRP 25-52，“对道路噪声的气象影响”，以收集不同气象条件下的高速公路噪声数据，记录不同气象条件下气象对道路噪声传播的影响，制定最佳实践并提供指导。如何：（a）量化气象对巷道噪声传播的影响；（b）向公众解释这些影响。凤凰城17号州际公路（I-17）附近的16个障碍物和无障碍物测量位置的已完成项目，亚利桑那州提供的数据库使建模有了实质性的发展。该报告提供了有关模型开发的最新信息，噪声分析人员可以直接应用这些信息，包括从简单的查询表到更精确地使用统计方程式的气象影响。