Abstract
Light rail vehicles will often idle with their air conditioners running at terminus locations that may be located near sensitive receivers due to network constraints. This creates a pseudo-stationary noise source with similar level and characteristics to industrial air conditioners that can result in disturbance and complaints from nearby sensitive receivers. However, in practice in the state of New South Wales (NSW), Australia, this pseudo-stationary noise source is commonly assessed against airborne noise criteria for transportation noise. This is due to the Conditions of Approval on the Sydney Inner West Light Rail Extension project explicitly delineating noise produced by light rail vehicles from other sources. This interpretation has been applied on all subsequent light rail projects in NSW, which have assessed this noise source at termini against the Rail Infrastructure Noise Guideline (RING) requirements. The Noise Policy for Industry (NPfI) has been applied to other noise sources on these projects, specifically fixed equipment at stops and all noise sources at stabling facilities (including light rail vehicle air conditioning noise and traffic movements within the boundary of the facility). This paper examines the policy overlap between the RING and the NPfI that makes both documents potentially applicable to noise from light rail air conditioners when idling at termini, depending on interpretation and specific project conditions of approval. It also presents a hypothetical assessment of typical light rail activities near termini against both the RING and NPfI, to demonstrate the potential differences in project outcomes between the applications of the two documents. An example of a compromise that acknowledges the pseudo-stationary nature of the noise source as well as the benefits that public infrastructure provides relative to industrial facilities is also suggested, in lieu of a separate threshold or policy for this very specific circumstance.
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References
NSW Environment Protection Authority. Rail Infrastructure Noise Guideline (2013)
NSW Government Legislation Protection of the Environment Operations Act 1997 No. 156 https://legislation.nsw.gov.au/view/html/inforce/current/act-1997-156 Accessed 20 Mar 2024
NSW Environment Protection Authority. Industrial Noise Policy (2000)
NSW Environment Protection Authority. Noise Policy for Industry (2017)
NSW Environment Protection Authority. Implementation and Transitional Arrangements for the Noise Policy for Industry (2017)
Fard, S., Haberley, M., ColemanP.: Implementation of NSW Rail and road traffic noise guidelines on light rail projects. In: Proceedings of Acoustics 2021, Wollongong, NSW, Australia (2022)
Modular Wall Systems. Acoustic Solution for Light Rail System in Dulwich Hill, NSW, https://www.outdoordesign.com.au/landscape-supplies-hard/acoustic-solution-for-light-rail-system-in-dulwich-hill-nsw/821.htm Accessed 20 Mar 2024
Transport for NSW. Conditions of Approval -Newcastle Light Rail & Associated Road Upgrades (Consolidated May 2017), https://www.transport.nsw.gov.au/system/files/media/documents/2019/Newcastle%20Light%20Rail%20%26%20Associated%20Road%20Upgrades%20Conditions%20of%20Approval.pdf Accessed 20 Mar 2024
NSW Department of Planning. Inner West Light Rail Conditions of Approval, https://www.transport.nsw.gov.au/sites/default/files/media/documents/2017/Inner%20West%20Light%20Rail%20Conditions%20of%20Approval.pdf Accessed 20 Mar 2024
NSW Department of Planning and Environment SSI-6042 MOD 6 approved 21 February 2017, https://majorprojects.planningportal.nsw.gov.au/prweb/PRRestService/mp/01/getContent?AttachRef=SSI-6042-MOD-6%2120210331T012757.036%20GMT Accessed 20 Mar 2024
NSW Department of Planning and Environment CSSI 8285 MOD 2—determined 25 January 2019, https://majorprojects.planningportal.nsw.gov.au/prweb/PRRestService/mp/01/getContent?AttachRef=SSI-8285-MOD-2%2120200831T233042.313%20GMT Accessed 20 Mar 2024
WSP|Parsons Brinckerhoff. Newcastle Light Rail Detailed Design Report System Wide—Operational Noise and Vibration Management Plan. https://www.transport.nsw.gov.au/system/files/media/documents/2019/Newcastle%20Light%20Rail%20Operational%20Noise%20and%20Vibration%20Management%20Plan.pdf (2019) Accessed 20 Mar 2024
Miedema, H.: Response functions for environmental noise in residential areas, TNO Nederlands instituut voor Praeventieve Gezondheidszorg (1992)
Peris, E., Woodcock, J., Sica, G., Sharp, C., Moorhouse, A., Waddington, D.: Effect of situational, attitudinal, and demographic factors on railway vibration annoyance in residential areas. Journal of Acoustical Society of America 135, 194–204 (2014). https://doi.org/10.1121/1.4836495
News.com.au Light rail is the path to the property boom in the inner west. https://www.news.com.au/finance/real-estate/light-rail-is-the-path-to-the-property-boom-in-the-inner-west/news-story/6df06c227ce5860ddd9907c1771efda8 (2014) Accessed 20 Mar 2024
Acknowledgements
The authors would like to acknowledge Evan Milton of GHD for advising of the connection between the RING light rail airborne noise criteria and the conditions of approval for the Inner West Light Rail extension, and the direction to Appendix 9 of the RING. The authors would also like to acknowledge Laura Lapena of Acoustic Studio for advising on the Latin declensions used in this paper, specifically the use of “termini” as the plural of “terminus”, and Larry Clark of Acoustic Studio for his technical feedback.
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Miller, A., Croft, B. & McMahon, J. Assessing Noise from Light Rail Vehicles Idling at Termini in NSW, Australia. Acoust Aust (2024). https://doi.org/10.1007/s40857-024-00328-w
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DOI: https://doi.org/10.1007/s40857-024-00328-w