NAPIER PORT NOISE NCC District Plan Review Presentation (11 June 2020) Photo credit: Oana Ungureanu
OVERVIEW Review the Operative port noise rules Summarise the Port noise model and review process Recommend updates to the Noise Control Boundaries and mitigation provisions
OPERATIVE NAPIER DISTRICT PLAN Current Port Noise Maps are City of Napier District Plan Rule 28.15.1 includes: produced to satisfy City of Napier Part (a) noise limits, most notably 65 dBA L dn (5 day) District Plan Noise Rule 28.15.1 applying at the Port Inner Noise Control Boundary (right). Updated annually and Part (b) noise monitoring and reporting included in the Port Noise Parts (c) and (d) noise mitigation requirements with Management Plan. respect to the Current Port Noise Maps Part (e) Port Noise Liaison Committee Future Port Noise Maps are used for Part (f) Standards for the measurement and long-term planning, such as location assessment of port noise of the Noise Control Boundaries in the District Plan. They are infrequently updated.
NATIONAL PLANNING STANDARDS The Operative rules refer to New Zealand Standard NZS 6809:1999 Acoustics – ‘Port noise management and land use planning’ (the Port Noise Standard). National Planning Standards require application of the Port Noise Standard, specifically the measurement and assessment provisions.
PORT NOISE STANDARD The Standard recognises the need for ports to operate in an effective manner and provides guidelines to ensure that the adjacent residential communities can co-exist with ports and their associated activities. This is achieved in two parts: Port Noise Management Plan (minimise effects, such as ‘bangs’ from container and log handling) Noise Control Boundaries (land use controls associated with the ‘hum’ of port operations)
NOISE MANAGEMENT PLAN Good-neighbour code of practice to minimise or manage the effects of port noise: Staff training Equipment selection Safety alarms Night activities Tenants and contractors Noise monitoring Community engagement Updated annually with current Port Noise Maps. https://www.napierport.co.nz/community/living-near-the-port/
NOISE CONTROL BOUNDARIES Modelled two operational scenarios: Current (2020) enables benchmarking of existing operations Future (2035) predicts ‘vision for growth’ scenario to inform Noise Control Boundaries and associated District Plan controls
PORT NOISE ENVIRONMENT Complied with the Operative port noise limits Seasonal peak in February – April each year Annual average and peak levels stable from 2012 to 2019 enabling reliable model calibration Bluff Hill Noise Monitor Year Median Day/Period Peak Period (port controlled) dB L dn (1day) dB L dn (5day) dB L dn (5day) 2019 61 61 63 2018 61 61 63 2017 61 61 62 2016 61 61 63 2015 60 61 63 2014 61 61 64 2013 60 60 63 2012 60 60 62
CURRENT PORT NOISE MAP (2020) Figure 1A: Noise Contours 1.5m above ground (RRLK0502.res)
FUTURE PORT NOISE MAP (2035) Figure 1A: Noise Contours 1.5m above ground (RRLK0552.res)
NOISE CONTROL BOUNDARIES
NOISE CONTROL BOUNDARIES – CONTROLS Sound Insulation requirements: Area A (> 65 dB L dn 5-day ) Noise sensitive activities prohibited Area B (55 – 65 dB L dn 5-day ) Minimum standards for new or altered dwellings Area C (< 55 dB L dn 5-day ) No controls Noise Limits:
NOISE MITIGATION Operative District Plan Requirements: Port of Napier Extension: Port of Napier must mitigate dwellings Port of Napier to mitigate dwellings within the Current Port Noise Maps within the Current Port Noise Maps 65 dBA L dn (5-day) noise contour 60 dBA L dn (5-day) noise contour Must achieve a spatial average indoor Options to achieve a spatial average design level of 45 dB L dn (5-day) indoor design level of 40 dB L dn (5-day) Does not apply to new or altered Does not apply to new or altered dwellings consented after 2003 dwellings consented after 2003 No dwellings currently eligible 21 dwellings qualify in 2020, but predicted to rise to 38 dwellings by 2035 Proposed District Plan Changes: Improve the mitigation provisions for new and existing dwellings to align with the Port of Napier extension.
FUTURE PORT FAÇADE NOISE MAP (2035) Figure 3A: Façade Noise Map (RRLK0554.res)
FUTURE PORT FAÇADE NOISE MAP (2035) Figure 3B: Façade Noise Map (RRLK0554.res)
SUMMARY I recommend three material changes: Bluff Hill Noise Monitor Update the Port Noise Control Boundaries to better reflect the noise effects envelope Improve the mitigation provisions for new dwellings within the Outer Noise Control Boundary Improve the mitigation provisions for existing dwellings within the Outer Noise Control Boundary In my opinion, the proposed changes align with current best practice.
QUESTIONS?
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