{"title":"Evaluation of cabin noise of various subway systems","authors":"Hsiao Mun Lee \n (, ), Heow Pueh Lee \n (, )","doi":"10.1007/s10409-025-25015-x","DOIUrl":null,"url":null,"abstract":"<div><p>This study examines the variations in noise levels across various subway lines in Singapore and three other cities, and provides a detailed overview of the trends and factors influencing subway noise. Most of the equivalent sound pressure level (<i>L</i><sub>eq</sub>) in typical subway cabins across the Singapore subway lines are below 85 dBA, with some notable exceptions. These variations in noise levels are influenced by several factors, including rolling stock structure, track conditions and environmental and aerodynamic factors. The spectrogram analysis indicates that the cabin noise is mostly concentrated below the frequency of 1,000 Hz. This study also analyzes cabin noise in subway systems in Suzhou, Seoul, and Tokyo to allow for broader comparisons. It studies the impact of factors such as stock materials, track conditions including the quality of the rails, the presence of curves or irregularities, and maintenance frequency on cabin noise.\n</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 7","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Mechanica Sinica","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10409-025-25015-x","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This study examines the variations in noise levels across various subway lines in Singapore and three other cities, and provides a detailed overview of the trends and factors influencing subway noise. Most of the equivalent sound pressure level (Leq) in typical subway cabins across the Singapore subway lines are below 85 dBA, with some notable exceptions. These variations in noise levels are influenced by several factors, including rolling stock structure, track conditions and environmental and aerodynamic factors. The spectrogram analysis indicates that the cabin noise is mostly concentrated below the frequency of 1,000 Hz. This study also analyzes cabin noise in subway systems in Suzhou, Seoul, and Tokyo to allow for broader comparisons. It studies the impact of factors such as stock materials, track conditions including the quality of the rails, the presence of curves or irregularities, and maintenance frequency on cabin noise.
期刊介绍：
Acta Mechanica Sinica, sponsored by the Chinese Society of Theoretical and Applied Mechanics, promotes scientific exchanges and collaboration among Chinese scientists in China and abroad. It features high quality, original papers in all aspects of mechanics and mechanical sciences.
Not only does the journal explore the classical subdivisions of theoretical and applied mechanics such as solid and fluid mechanics, it also explores recently emerging areas such as biomechanics and nanomechanics. In addition, the journal investigates analytical, computational, and experimental progresses in all areas of mechanics. Lastly, it encourages research in interdisciplinary subjects, serving as a bridge between mechanics and other branches of engineering and the sciences.
In addition to research papers, Acta Mechanica Sinica publishes reviews, notes, experimental techniques, scientific events, and other special topics of interest.
Related subjects » Classical Continuum Physics - Computational Intelligence and Complexity - Mechanics
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