铁路专用线噪声调查与预测特点分析

Noise Investigation of Railway Special Lines and Its Forecast Characteristic Analysis

铁路专用线与国铁相比具有线路长度较短、技术标准较低、运输密度较小等特点。在分析铁路专用线噪声特点的基础上,提出铁路专用线应选取等效声级为噪声评价量,在采用模式预测法进行铁路专用线噪声预测时,应关注各主要修正参数,为科学、客观评价专用线噪声提供依据,同时以某铁路专用线为例进行噪声分析。

Compared with national railway,railway special line has the characteristics of short track length,low technical standard and small traffic density.Based on analyzing noise characteristics of railway special lines,this paper points out that the equivalent sound level should be selected for railway special lines as the sound evaluation value;when forecasting the noise of railway special line by using model forecast method,each main modified parameter should be paid attention.The paper also makes noise analysis with certain railway special line as example.