KRNoise를 활용한 철도 환경 소음 예측 연구

초록

To make appropriate prevention of railway noise problems or apply their mitigation measures, accurate noise prediction models and analysis program are required. Recently a railway noise prediction model taking into account the frequency characteristics of the noise source and noise propagation has been suggested to improve the conventional model based on the overall noise levels. The Excel VBA program, KRNoise also has been developed so that the suggested model would be used in the industry. In this paper, the railway environmental noise was analyzed utilizing KRNoise in the case of various track and vehicle conditions, environments and receiver positions. The accuracy of predictions was examined by comparing to the measurements and the possible factors for the error were reviewed.