Summary
Sydney’s Epping to Chatswood Rail Link (ECRL) is a landmark rail tunnel project (12.5 km long) which opened to the public in 2009. During commissioning, in-car passenger noise levels within older style non-air-conditioned trains were found to exceed 100dBA at some locations.
Several noise mitigation strategies were optimised and implemented within a short timeframe to reduce in-car noise levels by an average of 10dBA. These included a new rail grinding technique, installation of additional sound absorptive panels on the walls and between the rails, and rail dampers (in a tunnel environment).
This paper presents a summary of the works undertaken to mitigate in-car noise, calculation methods and achieved noise reductions.
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References
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Weber, C.M., Haling, J., Brown, G.P., Hanson, D. (2012). In-Car Noise Control for Epping to Chatswood Rail Link. In: Maeda, T., et al. Noise and Vibration Mitigation for Rail Transportation Systems. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 118. Springer, Tokyo. https://doi.org/10.1007/978-4-431-53927-8_55
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DOI: https://doi.org/10.1007/978-4-431-53927-8_55
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-53926-1
Online ISBN: 978-4-431-53927-8
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