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本文介绍了噪声暴露级ＬＡＸ与等效声级Ｌｅｑ之间的基本关系及ＬＡＸ的测量方法，以常州市城区环境噪声调查与评价中所得到的实测数据，说明了ＬＡＸ可以广泛地应用于交通噪声的调查、评价与预测中。这一应用，为小流量交通噪声（包括内河航道噪声与铁路噪声在内）的评价提供了一种可行的方法。
This paper introduces the basic relationship between the noise exposure level LAX and the equivalent sound level Leq and the measurement method of LAX. Based on the measured data obtained from the survey and evaluation of urban ambient noise in Changzhou, it shows that LAX can be widely used in traffic noise The survey, evaluation and prediction. This application provides a viable approach for the evaluation of low-volume traffic noise, including inland waterway noise and railway noise.