Draft Site Specific Construction Noise and Vibration Management Plan

Page 1


Karangahape Station and Public Realm Reinstatement

Draft Site Specific Construction Noise and Vibration Management Plan

CRL-KRD-RME-LKA-RPT-800018

Revision: A01 17 December 2021

Draft Site Specific Construction Noise and Vibration Management Plan

Draft Site Specific Construction Noise and Vibration Management Plan

CRL-KRD-RME-LKA-RPT-800018

This document is uncontrolled when printed. This document should be printed in colour

Revision Status

Revision Issue

A01 17/12/2021 Final for Council submission Shivam Jakhu Claire Drewery

Approval Status

Name/Title

Prepared by: Sandeep Manilal / Shivam Jakhu Principal Acoustic Consultant / Senior Acoustic Engineer

17/12/2021

Reviewed by: Claire Drewery Technical Director - Acoustics 17/12/2021

Approved by: Peter Roan Planning and Approvals Manager 21/12/2021

Karangahape Station and Public Realm Reinstatement

Introduction

This is a Site-Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the Karangahape Station Main Works (ref CRL-KRD-RME-LKA-PLN-800021 dated 21/02/2020). This SSCNVMP will be updated once greater certainty on the timing and duration of high noise and vibration generating activities is known and consultation with affected receivers has been undertaken.

The updated SSCNVMP will be submitted to Auckland Council a minimum of 20 working days prior to the commencement of works that trigger the requirement for this SSCNVMP. This will include a record of consultation with affected receivers and will address each sub-section (a-f), as required by condition 37.5 and 38.5. The SSCNVMP will be developed in accordance with the established Auckland Council Subject Matter Expert (SME) and Independent Peer Review Process for the CRL project. This will include how the comments received from the AC SME and IPR have been taken into account.

This SSCNVMP provides a specific assessment of construction noise and vibration from the Public Realm Reinstatement (PRR) works that was not previously provided for as part of Karangahape Station Main Works CNV DWP.

The construction works required to reinstate the permanent aspects of the public space include the following:

• Construction of new stormwater

• Installation of utilities

• Construction of tree pits

• Installation of new road pavement

• Installation of new footpath pavements

• Landscaping works

• Installation of street furniture

The works will be undertaken in a staged manger, commencing as the current construction works are progressively completed (refer to Table 1-1). The total duration of works is approximately 18 months, commencing in Q3 2023. A detailed description of the PRR works is provided in the Karangahape Station PRR Construction Environmental Management Plan (CEMP) Addendum. This SSCNVMP should be read in conjunction with the Karangahape Station Main Works CNV DWP to which this document forms part of Appendix F, as it contains further details of the project, noise criteria, monitoring and general mitigation measures. An overview of the works and details of the construction methodology are contained in Section 3.

Table 1-1: Overview of Construction Works and Staging
Mercury
Stage

Stage 2 – Mercury Lane and Cross Street - Reinstate road profile of Mercury Lane and Cross Street - Utilities installs

Stage 3 – Mercury Lane - Reinstate road profile - Reinstate footpath - Utilities installs - Streetscape

- Cross Street footpath

Stage 4 – Mercury Lane - Reinstate road profile and footpath - Utilities installs - Streetscape

Stage 5 – Mercury Lane - Reinstate road profile and footpath

Stage 6 – Lane Way and CSA

- Backfill temporary shaft and extract sheet piles - Dismantle tower crane/gantry crane/noise enclosure/site office etc

- Construct laneway between Mercury Lane and East St - Reinstate CSA

Stage 7 – Final streetscape - Final landscaping - Final streetscape - Complete mill topper

Beresford Square

Stage 1 – Pitt Street (west) - Reinstate road profile - Utility installs

Stage 2 – Pitt Street (east)

Reinstate road profile - Utility installs

Stage 3 – Pitt Street (west) - Reinstate road profile - Utility installs - Streetscape

Stage 4 – Beresford Square - Reinstate footpath - Utilities installs - Streetscape

Stage 5 – Beresford Square - Reinstate footpath - Streetscape

Stage 6 – Beresford Square - Reinstate footpath - Streetscape - Tree grove

Stage 7 – CSA - Utilities installs - Reinstate the CSA - Remove site office

Stage 8 – Final streetscape - Final landscaping - Final streetscape - Complete mill topper

1.1 Objective

The objective of this SSCNVMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on receivers resulting from construction noise and/or vibration that does not comply with the Project Standards set out in Section 3 of the CNV DWP.

This SSCNVMP has been prepared in accordance with designation Conditions 37, 38, and 39

1.2 Site Plans

The extent of the PRR construction works is shown in Figure 1 1

Figure 1 1: Site location – Extent of public realm reinstatement (red hatched line) and construction support areas (blue)

Affected Receivers

Receivers where noise and/or vibration levels due to the Public Realm Reinstatement works within the project designation have the potential to exceed project noise or vibration standards, along with the relevant building uses, are listed in Table 2-1

Table 2-1: Affected receivers

*This is the Monday to Saturday 07:00 to 22:00 noise criteria. The majority of works will be carried out during this period. For residential receivers the noise limit is reduced to 65 dB LAeq & 80 dB LAFmax on Sundays and Public Holidays between 07:00 to 22:00 and to 60 dB LAeq & 75 dB LAFmax at all other times.

Activities

Construction activities for the Public Realm Reinstatement works are shown in Table 3-1.

Table 3-1 Public Realm Reinstatement construction methodology

Stage Details of Works Equipment Utilised

Utilities

Tree Pits

• To service the urban realm installations & divert main utilities a network is required

• Duct installations are completed using a combination of excavators, trucks (for concrete, and for spoil disposal and importing backfill materials), hand tools, trench shields and compaction equipment

• The installation of street lighting and other above ground traffic service installation is linked to the utility duct and cable work.

• For tree pits that are near services, 25 mm steel plates are to be installed to provide additional barrier between pit and service trenches

• Hydro excavation and pothole techniques will be used to expose tree pits when utilities are approached

• Excavations will be around 1.0-2.0 m

• Temporary supports will be installed around the utilities

• 5-14t excavators

• Trucks

• Plate compactors and/or small rollers

• Trench Shields

• Hand Tools

Road Pavement

• After completion of ground works - Subsoil drains are constructed along the edges of the road carriageway

• Basecourse material/layer is spread and compacted

• Testing undertaken on the subgrade and basecourse layer during construction

• Structural asphalt layers are constructed and the final 50mm layer of AC14 will be placed at the final phase of the works

• Line markings works are completed after the asphalt layer is laid

• Excavators (5T-20T)

• Excavators (10T-20T)

• Trucks (for concrete, spoil disposal and importing backfill materials)

• Plate compactors and/or small rollers

• Trench Shields

• Hand tools

• Hydrovac Truck

• Excavators

• Graters

• Plate/Roller compactors

• Asphalt paving plant

• Concrete breaker

• Concrete saw

Footpath Pavements

• Footpath pavements generally consist of basecourse layer, reinforced concrete layer & decorative layer

• The Basecourse layer (Cemented treated basecourse) is spread and compacted using excavators and small roller/plate compactors

• Structural concrete layer is constructed in segments to maintain pedestrian movements and concrete is delivered via trucks with concrete pumps

• Dust from placement of fill and bedding material is controlled via a watering system

• Decorative paving is constructed by cutting, placing, and mixing of stone pavers with Steintec Bedding

• To maintain pedestrian access to business and properties, night works may be required for the installation of pavers

• A mobile acoustic enclosure is used during all paver cutting

• Excavators(5-10T)

• Small roller/plate compactors

• Concrete pumps (Line or boom)

• Watering System

• Bedding material

• Mobile acoustic enclosure

• Concrete breaker

• Concrete saw

Stage

Landscaping

Road Furniture

Details of Works Equipment Utilised

• Duct from extraction and cutting operations is controlled via a watering system

• Landscaping works are completed from the adjacent traffic lane and are one of the final activities completed

• Trees are delivered by truck and planted by hand or using a Hiab Crane

• After the planting of trees, surface tree grilles or permeable coverings will be installed

• Road Furniture will be one of the final activities undertaken at each site

• Furniture will be delivered onto site and immediately installed

• Road furniture includes street lighting and signage, seating, rubbish bins, bicycle racks and drinking fountains

• Installation of street lighting signage and traffic signal will be carried out by specialist electricians

• Hiab Crane

• Hand tools

• Hiab crane

Details of the construction equipment that is likely to be used for the above activities and the associated noise levels can be found in Section 4.1 of the CNV DWP. Details of the equipment that is expected to generate high levels of vibration can be found in Section 4.2 of the CNV DWP.

Note that the equipment levels detailed in the CNV DWP are placeholders. All equipment will be measured operating independently when work commences on site and the actual equipment noise/vibration levels and model numbers recorded and updated within the respective tables in the CNV DWP1 .

Construction hours will be as per those outlined in Section 2.5 of the Main Works CEMP. Works will generally be undertaken Monday to Saturday, 0700 – 1900 hrs. However, certain activities may need to be undertaken outside these hours to minimise traffic impacts or minimise disruption to businesses or residents, such as network utility works where the Network Utility Operator (NUO) requires works to be undertaken at night, or the delivery of large plant.

To maintain pedestrian access to business and properties, night works may be required for the installation of pavers Night works shall be limited to the placing of pre-cut pavers and asphalt paving Cutting of pavers shall be undertaken during daytime construction hours.

1 The table will be updated as part of the CNV DWP annual review process.

Façade performance and internal noise levels

4.1 Noise

The Public Realm Reinstatement works are located close to a number of receivers such that internal noise levels will inevitably be high during some activities.

Use of a concrete saw, concrete breaker, plate compactor, roller compactor, and drilling equipment has the potential to exceed the Project Standards for construction noise. These high noise generating activities will occur intermittently. Noise levels will reduce from those presented in Table 4-1 during other construction activities.

An enclosure over high noise generating equipment, such as the concrete saw, is unlikely to be practical at all locations on site due to space restrictions. However, this will be reviewed on a caseby-case basis and, where practicable, enclosures will be utilised.

However, even with mitigation and management measures implemented and noise barriers installed as outlined in the CNV DWP, the noise levels predicted at the most exposed façade of a number of properties will still exceed the Project Standards by more than 5 dB during some construction activities. These properties are detailed in Table 4-1 along with an estimate of the current façade performance and the worst-case internal noise levels anticipated to be received during the use of concrete saws.

Detail on the timing and duration of high noise and vibration generating activities will be updated in the SSCNVMP once this information becomes available.

It is important that stakeholders receive advance communication of high noise generating activities. Refer to section 5 for the communication process.

Table 4-1: Estimated internal Noise levels

Address

238

Karangahape Road

Ground Floor: Various commercial retails >90 at most exposed area of façade during concrete cutting activities.

First floor and above: Residential Flats

246

Karangahape Road

Ground Floor and above: BK Hostel >90 at most exposed area of façade during concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

Main façade of retail spaces faces into the building atrium. Back of retail space is masonry with renovation works required. Estimated attenuation provided by the façade is around 35dB Rw.

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

>55 dBA (with doors and windows closed) Annoyance to staff and customers

>55 dBA (with doors and windows closed)

Annoying and disturbing for residents. Sleep disruption if carried out during nighttime/early morning hours or for residents that sleep during the day. Internal noise levels are likely to exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city.

External observation of the façade consists of 50% glazing and 50% masonry. Not known if mechanical ventilation is present within the property. Estimated attenuation

>60 dBA (with doors closed) Annoyance to staff and customers

Specific Mitigation Measures - Best Practicable Option (BPO)

Screening provided to ground floor by noise barriers around construction works.

Screening provided by temporary noise mats.

Noisy works to be scheduled outside of sleeping hours where practicable.

Manage unnecessary impact sounds.

Consultations have identified shift workers and retirees who sleep during the daytime within this building. Mechanical ventilation has been offered to residents as required occupying flats located long the façade overlooking the works.

Long term noise monitoring is currently installed at this property. The logger sends alerts to the construction team when the trigger alert level is exceeded. The construction team uses this information to manage noise from the construction site. It is expected this noise logger will remain in place for the duration of the PRR works.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

provide by the façade is around 30dB Rw with windows closed.

Specific Mitigation Measures - Best Practicable Option (BPO)

59 Pitt Street Ground floor: Vada, Waves, Fabriks, Tattoo Parlour, First floor: Graphics Design

>90 at most exposed area of façade during concrete cutting activities.

Ground Floor: Each shop’s façade consists around 80-100% single glazing windows with glazed doors. No mechanical ventilation available. Attenuation provided by the façade is estimated to be around 30dB Rw with windows and doors closed

First floor: Façade is double height with 50% single glazing and 50% masonry. Mechanical ventilation is available with openable windows. Estimated attenuation provided by the façade is around 30dB Rw with windows closed.

>60 dBA (with doors closed) Annoyance to staff and customers

Works will be intermittent in nature and will not occur directly outside hostel.

1. Noisy works to be scheduled outside of sleeping hours where practicable..

2.Manage unnecessary impact sounds.

3. Minimise periods of concrete cutting, breaking and compacting during noise sensitive periods.

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Noise barriers will be installed around the works which will provide screening to the ground floor

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact. Noisy works should ideally be scheduled before or after business opens for the day.

Long term monitoring has been installed at this location. The logger sends alerts to the construction team when the trigger alert level is exceeded. The construction team uses this information to manage noise from the

LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

1 Cross Street Ground Floor and above: Multiple businesses and single residential >90 at most exposed area of façade during concrete cutting activities. 50% masonry and 50% single glazed windows. Openable windows with no mechanical ventilation. Estimated attenuation provided by the façade when windows closed is predicted to be around 25- 30 dB Rw.

>60 dBA (with doors closed) Annoyance to staff and customers

Specific Mitigation Measures -

(BPO)

1 Beresford Square Ground Floor and above: Commercial use2 >90 at most exposed area of façade during concrete cutting activities.

Based on external observations façade is around 40% double glazed openable windows and 60% masonry. Mechanical ventilation unknown. Estimated attenuation provided by the façade when windows closed is predicted to be around 35 dB Rw with windows closed.

>55 dBA (with windows closed) Annoyance to staff. Reduction in work efficiency and concentration, disturbance to meetings

construction site. It is expected this noise logger will remain in place for the duration of the PRR works.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside whilst concrete cutting works take place. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

1. Noisy works to be scheduled outside of sleeping hours where practicable.

2. Manage unnecessary impact sounds.

3. Minimise periods of concrete cutting, breaking, and compacting during noise sensitive periods.

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

Double glazing was installed by the landlord of 1 Beresford Square prior to the start of works.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside whilst concrete cutting works takes place. Noise levels may still

Noise

dB LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

Specific Mitigation Measures - Best Practicable Option (BPO)

8-12 Beresford Square Ground Floor: Bravo

Hospitality, First Floor and above: Theta Inc >90 at most exposed area of façade during concrete cutting activities.

All levels are mechanically ventilated with 100% single glazed façade Estimated attenuation provided by the façade is predicted to be around 30 dB Rw.

>60 dBA. Annoyance to staff and customers, speech clarity may be affected. Reduction in work efficiency and concentration, disturbance to meetings

exceed the criteria whilst works are occurring outside neighbouring properties.

The installation of mechanical ventilation was offered to residents who are shift workers needing to sleep during the day and who occupy flats located along the façade overlooking the Beresford Square work site.

Noise barriers will be installed around the works which will provide screening to the ground floor.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Noise mats were installed at the balcony of one of the tenants (Theta Systems) on the first floor during the DWall works, this mitigation measure should be offered again to protect against noise in the reception area during the PRR works as its previous use was successful. Notice of noisy works to be provided at least 24 hours in advance. Long term noise monitoring has been installed at this building.

61 Pitt Street Ground Floor: Johnny

Feedback coffee shop >90 at most exposed area of façade during concrete cutting activities.

Coffee shop has no façade, shop opens with roller doors onto the street. No attenuation provided by the façade

>90 dBA dB. Disruption to business, staff and customers. Hearing damage.

Screening will be provided by temporary noise barriers, but high noise levels will be experienced within the building during some activities due to lack of façade.

Additional screening close to the open area of the façade is required but may not be possible to install without impacting access to the coffee shop or footpath outside.

Address

LAeq

65 Pitt Street Ground Floor: Tokyo Loco >90 at most exposed area of façade during concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level

(dB LAeq) with Mitigation/ Potential Effects

Specific Mitigation Measures - Best Practicable Option (BPO)

4-6 Beresford Square Ground Floor: Northern Bar >90 at most exposed area of façade during concrete cutting activities.

Full single glazing façade with no mechanical ventilation. Open plan kitchen dining with extractor fan Door is kept open during summer for ventilation. Estimated attenuation with door closes is around 30dB Rw and with door open is around 20dB Rw.

Façade is masonry wall with around 95% single glazing and openable French doors. There is no mechanical ventilation to the property, only natural ventilation via French doors. The attenuation provided by the façade when doors closes is estimated around 30 dB Rw. The estimated façade performance with the door open is 15 dB Rw.

>60dBA during concrete cutting.

(Door Closed) Annoyance to staff and customers

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact. Noisy works should ideally be scheduled before or after business opens for the day.

Screening provided to ground floor by noise barriers around construction works.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

16-18 Beresford Square Ground Floor and above: Centurion Sauna1 >90 at most exposed area of façade during

Based on external observations facade is 90% single glazing and 10% masonry. Small areas of glazing are openable with trickle vents visible. Estimated façade

>60 dBA. Annoyance to users but potentially masked with background music during venue use

Noise barriers will be installed around the works which will provide screening to the ground floor. Noisy activities outside this property to be scheduled before 3pm, where practicable.

Long term monitoring has been installed at this location. The logger sends alerts to the construction team when the trigger alert level is exceeded. The construction team uses this information to manage noise from the construction site. It is expected this noise logger will remain in place for the duration of the PRR works.

>65dBA Annoyance and disturbance to staff and customers

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

dB LAeq

concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

attenuation is around 20-25 dB Rw with windows closed. throughout the day and night-time.

Specific Mitigation Measures - Best Practicable Option (BPO)

243 Karangahape Road

Ground floor: Pitt St Pub >90 at most exposed area of façade during concrete cutting activities.

First Floor and above: Calendar Girls 1

Façade is 50% masonry and 50% single glazing windows. Air lock entrance with wooden door kept open onto the glazing door within. Mechanical ventilation is available. Attenuation provided by the façade is estimated to be around 35dB Rw with door closed.

Observation from the exterior show façade consists of 70% masonry with 30% glazing. Unknown if mechanical ventilation is present inside or if windows are openable. Estimated attenuation provided by façade is predicted to be around 30-35dB Rw with windows and doors closed.

>55 dBA. Annoyance to staff and customers but not to a level that interferes with businesses with background music

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside whilst concrete cutting works take place. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Consultation required to determine if noisy works can be carried out at a time that least impacts them, and if additional mitigation on property is required.

Noise barriers will be installed around the works which will provide screening to the ground floor.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Noisy works to be scheduled before peak operating period (afternoons and evenings Thursdays to Sunday)

>55 dBA. Annoyance to staff and customers but not to a level that interferes with businesses with background music

Noise barriers will be installed around the works which will provide screening to the ground floor.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Background music may be played inside at a level which will mask construction noise.

LAeq

22 Beresford Square First Floor and above:

Residential flats >90 at most exposed area of façade during concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

Façade consists of 40% masonry and 60% single glazed openable windows and a single glazed sliding door facing the works location. Estimated attenuation provided by the façade is around 30dB Rw.

>60dBA. Annoying and disturbing for residents. Sleep disruption if carried out during nighttime/early morning hours or for residents that sleep during the day. Internal noise levels during utility works are likely to exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city. Noisy works will occur outside the flats for a period of days.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

Noisy works to be scheduled outside of sleeping hours where practicable.

Manage unnecessary impact sounds.

Consultation for this building during the Main Works has identified some residents are shift workers and will be sleeping during the day Mechanical ventilation has been offered for bedrooms that are located along the facade overlooking the Beresford Square work site. One resident on the 3rd floor agreed and has had mechanical ventilation installed.

18 East Street Ground Floor: Residential >90 at most exposed area of façade during concrete cutting activities.

Façade is a lightweight partition weatherboard with single glazed windows. Access to back façade where most impacted was not given. Estimated façade attenuation is around 25 dB Rw

>65 dBA. Disturbance to users and potential annoyance to staff and customers.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside whilst concrete cutting works take place. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

Specific Mitigation Measures - Best Practicable Option (BPO)

9 Mercury Lane Ground Floor and above: Mercury Theatre >90 at most exposed area of façade during concrete cutting activities.

Facade consists of 70% masonry and 30% glazing. Large gaps are found around the emergency exit doors. No mechanical ventilation is available. This building is naturally ventilated via a roof system. Attenuation provided by the façade is estimated around 35 dB Rw.

>55 dBA. Annoyance to staff and customers but not to a level that interferes with businesses with loud background music

1. Noisy works to be scheduled outside of sleeping hours where practicable.

2. Manage unnecessary impact sounds.

3. Minimise periods of concrete cutting, breaking, and compacting during noise sensitive periods.

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

The following mitigation measures are recommended: Emergency exit doors and any air gaps to be properly sealed.

Noisy works to be scheduled outside of sleeping hours where practicable.

Manage unnecessary impact sounds.

Minimise periods of concrete cutting and breaking during noise sensitive periods and use of localised enclosure where practicable.

Communications team to determine venue use for the building and for works to be scheduled for a time that causes least impact on users.

A long-term noise monitor has been installed at the building across the road from this one which will be exposed to similar noise levels.

LAeq

19 Beresford Square Ground floor: Hopetoun Alpha 2 >90 at most exposed area of façade during concrete cutting activities.

Façade Build-up / Expected performance (dB Rw) Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

51 Pitt Street Ground floor Commercial retail >90 at most exposed area of façade during concrete cutting activities.

Based on external observations façade is set back from the street and seems 90% masonry with a single access door, and 10% double height windows. Presence of mechanical ventilation unknown. Estimated façade attenuation is predicted to be around 35 dB Rw with windows closed.

The building is a historic construction. The façade is comprised of masonry construction with 35% single glazing. Estimated Façade sound reduction is 30 dB Rw

>55 dBA (with doors closed) Annoyance to staff and customers.

>60 dBA. Annoyance to Staff and customers

Noise barriers will be installed around the works which will provide screening to the ground floor. Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

283 Karangahape Road Ground Floor: Samoa Tourism Authority 1 >90 at most exposed area of façade during

Observation from the exterior show façade is 60% light weight cladding with 25% glazing and 15% open with shutters. Use around façade is unknown but

>65 dBA during concrete cutting. Annoying and disturbing for residents. Sleep

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside whilst concrete cutting works take place. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Consultation required with affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

LAeq

concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

82 Pitt Street Ground Floor: Second-hand bookshop >90 at most exposed area of façade during concrete cutting activities.

mechanical vents are visible. Estimated attenuation based on observation is predicted to be around 25 dB Rw with windows and doors closed.

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

disruption if carried out during nighttime/early morning hours or for residents that sleep during the day. Internal noise levels are likely to exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city.

Façade comprised of approximately 60% glazing and 40% masonry. Estimated façade sound reduction 25 dB Rw with windows and doors closed

>65 dBA during concrete cutting. Annoyance to staff and customers, speech clarity may be affected

Specific Mitigation Measures - Best Practicable Option (BPO)

68 Pitt Street Ground Floor and above: Retail 3 >90 at most exposed area of façade during

Observation from exterior shows façade consists of around 20% glazing and 80% masonry. Unknown if mechanical

>55 dBA with door closed. Annoyance to customers

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside whilst concrete cutting works take place. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Consultation required with affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Samoa house contains a theatre. A foam packing material was installed around the edges of windows to help insulate against noise. The tenants were happy with the solution and reported that theatre performances went ahead without issues.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside whilst concrete cutting works take place.

Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Consultation required with affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening

235 Karangahape Road Ground floor Ascolour clothing store.

dB LAeq

concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

ventilation is present. Attenuation provided by the façade is estimated to be around 35 dB Rw with windows and doors closed.

84 Pitt Street Ground Floor: Checks Retail clothing store

>90 at most exposed area of façade during concrete cutting activities.

The building is a historic construction. The façade is comprised of masonry construction with 35% single glazing. Estimated Façade sound reduction is 30 dB Rw

>60 dBA during concrete cutting. Annoyance to staff and customers.

Specific Mitigation Measures - Best Practicable Option (BPO)

>90 at most exposed area of façade during concrete cutting activities.

Façade comprised of approximately 60% glazing and 40% masonry. Estimated façade Sound reduction 25 dB Rw with windows and doors closed

>65 dBA. Annoyance to staff and customers.

provided by noise barriers will be reduced at first floor level and above.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside whilst concrete cutting works take place.

Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Consultation required with affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Noise barriers will be installed around the works which will provide screening to the ground floor.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact. Noisy works to be scheduled outside business hours where possible

Noise barriers will be installed around the works which will provide screening to the ground floor.

Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

LAeq

70-76 Pitt Street First Floor and above: Chatham Apartments>90 at most exposed area of façade during concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

Specific Mitigation Measures - Best Practicable Option (BPO)

80 Pitt Street Ground Floor: Flying Out Records >90 at most exposed area of façade during concrete cutting activities.

The building is a masonry construction with large sash windows. The windows are approx. 40% of the facade have lightweight glass and no seals. No mechanical ventilation is available. Estimated attenuation with windows closed are around 25 dB Rw on Level 1.

Façade consists of 50-70% single glazing windows with natural ventilation reliant on keeping the doors open. Estimated attenuation with doors closed is around 25 dB Rw and with door open is around 15 dB Rw.

>65 dBA. Annoyance to staff and customers.

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact. Noisy works to be scheduled between 8am and 10am before business open.

Noise barriers will be installed around the works which will provide screening to the ground floor. Noisy works to be scheduled outside of sleeping hours where practicable.

Manage unnecessary impact sounds.

>65 dBA. Annoyance to staff and customers.

40 Pitt Street Central Fire Station

85-90 at most exposed area of façade during concrete cutting activities.

The building is a historic construction housing the Central Fire station. The building is masonry construction with 35% single glazed sash windows (excluding the Fire Engine bay)

55-60 dBA. Annoyance to staff.

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Consultation should take place prior to the start of works to understand the building uses and determine most appropriate times to undertake noisy works.

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

Estimated Façade sound reduction is 30 dB Rw

16 East Street Ground Floor: Retail

First Floor: Residential 85-90 at most exposed area of façade during concrete cutting activities.

External observation shows that the façade is constructed of 90% glazing and 10% masonry. The estimated sound reduction of the façade is 25 dB Rw with windows and doors closed

Specific Mitigation Measures - Best Practicable Option (BPO)

39 Pitt Street Ground floor and above:

Residential2 85-90 at most exposed area of façade during concrete cutting activities.

The façade consists of approximately 15% glazing and 80% Masonry. Unknown whether mechanical ventilation is present. Estimated attenuation with windows closed is 35dB Rw

65-70 dBA. Annoying and disturbing for residents. Sleep disruption if carried out during nighttime/early morning hours or for residents that sleep during the day. Internal noise levels are likely to exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city.

50-55 dBA. Annoying and disturbing for residents. Sleep disruption if carried out during nighttime/early morning hours or for residents that sleep during the day. Internal noise levels are likely to exceed the 35 – 40 dB

Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided by 1.8m high noise barrier with additional length of barrier angled into the site. Noisy activities must be scheduled for a time outside sleeping hours. Manage unnecessary impact sounds. It is noted this building will be partially demolished and may be unoccupied during these works.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above.

Impacted mainly by Concrete cutting which will be intermittent in nature.

1. Manage unnecessary impact sounds.

2. Minimise periods of concrete cutting, breaking and compacting during noise sensitive periods.

LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects Specific Mitigation Measures -

LAeq criteria of AS2107:2016 for sleeping areas in the inner city.

78 Pitt Street Methodist Church 85-90 at most exposed area of façade during concrete cutting activities.

Façade consists of 30% stain glass windows and 70% masonry. Relies on natural ventilation. Estimated attenuation with doors closed is around 30 dB Rw.

55-60 dBA.

Annoyance to staff and patrons.

3. Noisy works to be scheduled outside of sleeping hours where practicable.

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties.

Ongoing communication regarding timings of works and advance notice to be given.

47 Pitt Street Fire Station 85-90 at most exposed area of façade during concrete cutting activities.

The façade to the Fire Engine bays is constructed entirely of plastic sheeting. The rest of the building is predominantly masonry, with about 20% glazing. The estimated Façade sound reduction is 35 dB Rw.

50-55 dBA.

Annoyance to staff and Reduction in work efficiency and concentration, disturbance to meetings

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

14 East Street Ground Floor: Studio Q 80-85 at most exposed area of façade during concrete cutting activities.

The façade is comprised of approximately 40% glazing and 60% masonry. The estimated sound reduction of the façade is Rw 30.

50-55 dBA.

Annoyance to staff and Reduction in work efficiency and concentration,

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above. Impacted mainly by Concrete cutting which will be intermittent in nature.

1. Manage unnecessary impact sounds.

LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

Specific Mitigation Measures - Best Practicable Option (BPO)

disturbance to meetings 2. Minimise periods of concrete cutting, breaking, and compacting during noise sensitive periods.

3. Noisy works to be scheduled outside of sleeping hours where practicable.

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

First Floor: Residential Flats 80-85 at most exposed area of façade during concrete cutting activities.

Façade consists of masonry and single glazing. Estimated attenuation provided by the façade is around 30dB Rw.

29 East Street Ground floor: Carpark, Electric Bike Team, International 80-85 at most exposed area of façade during concrete cutting activities.

Observation from the exterior shows the façade is comprised of 90% glazing. The estimated sound reduction of façade is approximately 25 dB Rw

50 - 55dBA. Annoying and disturbing for residents. Sleep disruption if carried out during nighttime/early morning hours. Internal noise levels during utility works are likely to exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city. Noisy works will occur outside the flats for a period of days.

55-60 dBA

Impacted mainly by concrete cutting and works will be intermittent in nature. Works will occur at the back of the residential flats during daytime hours only.

1. Noisy works to be scheduled outside of sleeping hours where practicable.

2. Manage unnecessary impact sounds.

3. Minimise periods of concrete cutting, breaking and compacting during noise sensitive periods.

Locate stationary equipment such as generators away from flats. Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above. Impacted mainly by Concrete cutting which will be intermittent in nature.

Earth Sciences IESE Ltd

36 Day Street Residential ground floor and above 80-85 at most exposed area of façade during concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

21 East Street Ground Floor and above: UnoLoco Event Management 80-85 at most exposed area of façade during concrete cutting activities.

Observation from exterior shows façade consists of around 80% glazing and 20% masonry with metal roller doors at ground level. Unknown if mechanical ventilation is present. Attenuation provided by the façade is estimated to be around 25 dB Rw with windows and doors closed.

55-60 dBA. Annoying and disturbing for residents. Sleep disruption if carried out during nighttime/early morning hours or for residents that sleep during the day. Internal noise levels are likely to exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city.

Office on first floor has exposed steel roof with no insulation and exposed mechanical ventilation system. Façade facing the works consists mainly of single glazing with openable windows making up 80% of the façade and 20%

55-60 dBA (Door and windows closed). Annoyance to staff and customers. Reduction in work efficiency and concentration,

1. Manage unnecessary impact sounds.

2. Minimise periods of concrete cutting, breaking and compacting during noise sensitive periods.

3. 24 hours advance notification for noisy activities

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above. Impacted mainly by Concrete cutting which will be intermittent in nature.

1. Manage unnecessary impact sounds.

2. Minimise periods of concrete cutting, breaking and compacting during noise sensitive periods.

3. Noisy works to be scheduled outside of sleeping hours where practicable.

Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. The benefit of screening provided by noise barriers will be reduced at first floor level and above. Impacted mainly by Concrete cutting which will be intermittent in nature.

1. Manage unnecessary impact sounds.

LAeq

Façade Build-up / Expected performance (dB Rw)

41 Pitt Street Unoccupied, commercial building. 80-85 at most exposed area of façade during concrete cutting activities.

2 Cross Street Ground floor unoccupied.

80-85 at most exposed area of façade during concrete cutting activities.

masonry. Windows are usually left open during summer for ventilation. Estimated façade attenuation with windows closed is around 25 dB Rw.

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

disturbance to meetings

Specific Mitigation Measures - Best Practicable Option (BPO)

27 East Street Residential ground floor and above

80-85 at most exposed area of façade during concrete cutting activities.

Unoccupied. Façade comprised of approximately 40% glazing and 60% masonry. Estimated facade sound reduction 30 dB Rw with windows and doors closed

Observation from exterior shows façade consists of around 25% glazing and 75% masonry with metal roller doors at ground level. Unknown if mechanical ventilation is present. Attenuation provided by the façade is estimated to be around 30 dB Rw with windows and doors closed.

Façade is a lightweight partition weatherboard with single glazed windows. Estimated façade attenuation is approximately 25 dB Rw.

50-55 dBA (Door Closed). Unoccupied

2. Minimise periods of concrete cutting, breaking and compacting during noise sensitive periods.

3. 24 hours advance notification for noisy activities to co-ordinate sound recording events within office. Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Unoccupied at the time of writing. Communication/consultation to take place with building owner prior to start of PRR works to determine nature of occupancy and appropriate mitigation measures.

55-60 dBA (Door Closed)

55-60 dBA. Annoying and disturbing for residents. Sleep disruption if carried out during nighttime/early morning hours or for residents that sleep during the

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when works are directly outside. Building shielded from most works areas. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Localised enclosure around noisy equipment to be considered if practicable. 24 hours advance notification to be given before noisy works takes place.

Screening provided to ground floor by noise barriers around construction works. Impacted mainly by concrete cutting. Works will be intermittent in nature. Works will occur at the back of the residential flats during daytime hours.

1. Noisy works to be scheduled outside of sleeping hours where practicable.

LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

day. Internal noise levels are likely to exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city.

Specific Mitigation Measures - Best Practicable Option (BPO)

23 East Street Ground Floor: European motor services 80-85 at most exposed area of façade during concrete cutting activities.

Façade is set back approx. 13m from the roadside. 50% façade consists of one small single glazed window in a concrete blocks wall shield by a storage container overhead, and 50% façade is shutter roller door which is kept open. No mechanical ventilation available. Estimated attenuation provide 20-25dB Rw with shutters closed and 10-15 dB Rw with shutters open.

70-75 dB with shutters open. 55 – 60 dB (with shutters closed)

Annoyance to staff and disruption of carrying out mechanical services

2. Manage unnecessary impact sounds.

3. Minimise periods of concrete cutting, breaking and compacting during noise sensitive periods before 8am and after 6pm.

4.Locate stationary equipment such as generators away from building.

Screening provided to ground floor by noise barriers around construction works. Impacted mainly by concrete cutting and works will be intermittent in nature throughout the duration of early works. 24 hours advance notification for noisy activities. Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

25 East Street Residential ground floor and above 80-85 at most exposed area of façade during concrete cutting activities.

Façade is a lightweight partition weatherboard with single glazed windows. Estimated façade attenuation is approximately 25 dB Rw. 55-60 dBA. Annoying and disturbing for residents. Sleep disruption if carried out during nighttime/early morning hours or for residents that sleep during the day. Internal noise levels are likely to

Screening provided to ground floor by noise barriers around construction works. Impacted mainly by concrete cutting. Works will be intermittent in nature. Works will occur at the back of the residential flats during daytime hours.

1. Noisy works to be scheduled outside of sleeping hours where practicable.

2.Manage unnecessary impact sounds.

256 Karangahape Road

LAeq

Façade Build-up / Expected performance (dB Rw)

229 Karangahape Road

Ground Floor: Mithaiwala commercial 80-85 at most exposed area of façade during concrete cutting activities.

External observations shows establishment has open façade.

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city.

80-85 dBA during concrete cutting.

Specific Mitigation Measures - Best Practicable Option (BPO)

258-264

Karangahape Road

Ground Floor: Commercial retail 80-85 at most exposed area of façade during concrete cutting activities.

The building is a historic construction. Façade comprised of approximately 40% glazing and 60% masonry. Estimated façade Sound reduction 30 dB Rw with windows and doors closed

50-55 dBA (Door Closed) Annoyance to staff and customers

3.Minimise periods of concrete cutting, breaking, and compacting during noise sensitive periods before 8am and after 6pm.

4.Locate stationary equipment such as generators away from building.

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Ground Floor: Various commercial retails

First Floor: 80-85 at most exposed area of façade during concrete cutting activities.

The ground floor retail establishments have facades comprised of glazing and doors. Estimated sound reduction: 25 dB Rw. First floor is comprised of approximately 60% glazing and

Ground Floor 55-60 dBA with door closed. Annoyance to staff and customers

First Floor: 50-55 dBA

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Consultation required with the

LAeq

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

(BPO) Phoenix Event venue 40% masonry. Estimated sound reduction 30 Rw

affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

4 Cross Street Ground floor Tattoo parlour and café.

225 Karangahape Road Ground Floor: Crushes retail clothing store.

80-85 at most exposed area of façade during concrete cutting activities.

80-85 at most exposed area of façade during concrete cutting activities.

Façade comprised of approximately 25% glazing and 75% masonry. Estimated facade sound reduction 30 dB Rw with windows and doors closed

Façade comprised of approximately 40% glazing and 60% masonry. Estimated facade sound reduction 30 dB Rw with windows and doors closed

55-60 dBA with door and windows closed. Annoyance to staff and customers

50-55 dBA (Door Closed)

Annoyance to staff and customers

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works take place at closest point of works extent. Building shielded from most works areas.

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

15-19 East Street Ground and first floor, commercial.

80-85 at most exposed area of façade during concrete cutting activities.

Façade comprised of approximately 60% glazing and 40% masonry. Estimated façade Sound reduction 25 dB Rw with windows and doors closed

55-60 dBA with door closed. Annoyance to staff and customers

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

251-253 Karangahape Road

Ground Floor: The Hemp Store & VAPO

LAeq

80-85 at most exposed area of façade during concrete cutting activities.

Façade Build-up / Expected performance (dB Rw)

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

Façade comprised of approximately 75% glazing and 25% masonry. Estimated facade sound reduction 25 dB Rw with windows and doors closed

55-60 dBA with door closed. Annoyance to staff and customers

12 East Street Ground floor and above: Residential 2 80-85 at most exposed area of façade during concrete cutting activities.

Observation from the exterior indicates façade facing work sites is 100% masonry. Back of building not accessible. Estimated attenuation based on observation of façade is around 35 dB Rw with windows closed.

Ground floor:45 - 50 dB during concrete cutting/ breaking. Disruption if carried out during nighttime/early morning hours or for residents that sleep during the day. Internal noise levels during utility works are likely to exceed the 35 – 40 dB LAeq criteria of AS2107:2016 for sleeping areas in the inner city. Noisy works will occur outside the flats for a period of days

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Works will be intermittent in nature.

1. Noisy works to be scheduled outside of sleeping hours where practicable.

2. Manage unnecessary impact sounds.

3. Minimise periods of concrete cutting, breaking and compacting during noise sensitive periods. Further consultation will take place with the affected parties before works begin to determine if noisy works can be scheduled for a time that causes least impact.

Address

LAeq

Façade Build-up / Expected performance (dB Rw)

221 Karangahape Road

Note:

Posh Nails and Spa 75-80 at most exposed area of façade during concrete cutting activities.

Façade comprised of approximately 75% glazing and 25% masonry. Estimated facade sound reduction 25 dB Rw with doors closed

Expected Worst-Case Internal Noise Level (dB LAeq) with Mitigation/ Potential Effects

50-55 dBA with door closed. Annoyance to staff and customers

(BPO)

Screening provided to ground floor by noise barriers around construction works. Worst-case noise levels will be intermittent in nature and will occur when concrete cutting works are directly outside. Noise levels may still exceed the criteria whilst works are occurring outside neighbouring properties. Consultation required with the affected party before works begin to determine if noisy works can be scheduled for a time that causes least impact.

1. Relationship needs to be managed, meeting time to be arranged – façade observations from the exterior only

2. Not consulted as owner/manager was unavailable – façade observations from exterior only

3. Not consulted as property is currently vacant – façade observations from exterior only.

4.2 Vibration

In addition to the general vibration mitigation measures outlined in Section 6 of the CNV DWP, the specific vibration mitigation measures outlined in Table 4-2 shall be implemented if the initial on-site vibration monitoring at the closest building foundations demonstrates that the building damage vibration limits will be exceeded.

Table 4-2: Vibration Mitigation Measures

Equipment/process

Excavators, bobcats, loaders

Jack-hammers, hammer-drills

Vibration control measures

Grease tracks regularly.

Avoid unnecessary revving of engines and banging of buckets on the ground.

Use smaller equipment where possible.

Use smaller equipment where possible

Roller compactors (8T-14T), plate compactor Use a smaller compactor, less than 10t

Site specific vibration mitigation measures are included in Table 4-3.

Table 4-3: Site specific vibration mitigation measures

238 Karangahape Road 2 Historic/Vibration Sensitive

19 Beresford Square 2 Historic/Vibration Sensitive

Vibration may be felt within 238 Karangahape Road during the use of excavators and compactors. High vibration emitting activities to be scheduled outside of early morning and evening hours, when building occupants may be sleeping. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 19 Beresford Square during the use of excavators and compactors within 15m of the building. However, vibration will be intermittent in nature and over a limited duration of 5 days per stage. Further liaison will take place and highvibration emitting activities scheduled outside of sensitive hours, when building occupants may be affected when venue is operating.

Vibration may be felt within 1 Cross Street during the use of excavators and compactors. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

1 Cross Street 2 Historic/Vibration Sensitive

9 Mercury Lane 2 Historic/Vibration Sensitive

A vibration logger is installed inside 1 Cross Street, with a trigger alert level set at 2.5 mm/s. The device sends alerts to the construction team when the trigger alert level is exceeded. The construction team uses this information to help manage vibration from the construction site. The monitoring results, along with a summary of exceedances recorded, are provided in a monthly report to Auckland Council. It is expected this vibration logger will remain in place for the duration of the PRR works.

Vibration may be felt within 9 Mercury Lane during the use of excavators and compactors. Long term monitoring has been installed at property due to vibration concerns as identified in Appendix E of the CNV DWP and proximity to all construction stages. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable. Advance notice to be given during high-vibration emitting activities.

246 Karangahape Road 3 Historic/Vibration Sensitive

59 Pitt Street 3 Historic/Vibration Sensitive

A vibration logger is installed inside the Mercury Lane Theatre, with a trigger alert level set at 2.5 mm/s. The device sends alerts to the construction team when the trigger alert level is exceeded. The construction team uses this information to help manage vibration from the construction site. The monitoring results, along with a summary of exceedances recorded, are provided in a monthly report to Auckland Council. It is expected this vibration logger will remain in place for the duration of the PRR works.

Vibration may be felt within 246 Karangahape Road during the use of excavators and compactors. High vibration emitting activities to be scheduled outside of early morning and evening hours, when building occupants may be sleeping. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 59 Pitt Street during the use of excavators and compactors. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

68 Pitt Street 4 Historic/Vibration Sensitive

235 Karangahape

4 Historic/Vibration Sensitive

Vibrations may be felt within 68 Pitt Street during the use of excavators and compactors. Further liaison will take place and high vibration emitting activities scheduled outside of early morning and evening hours, when building occupants may be sleeping. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibrations may be felt within 235 Karangahape Road during the use of excavators and compactors. Further liaison will take place and high vibration emitting activities scheduled outside of early morning and evening hours, when building occupants may be sleeping. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

84 Pitt Street 4 Historic/Vibration Sensitive

82 Pitt Street 4

Historic/Vibration Sensitive

Vibration may be felt within 84 Pitt Street during the use of excavators and compactors within 15m of the building. Vibrations will be intermittent in nature. Advance notice to be given for high-vibration emitting activities. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 82 Pitt Street during the use of excavators and compactors within 15m of the building. Vibrations will be intermittent in nature. Advance notice to be given for high-vibration emitting activities. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

80 Pitt Street 4 Historic/Vibration Sensitive

1 Beresford Square 4

Historic/Vibration Sensitive

Vibration may be felt within 80 Pitt Street during the use of excavators and compactors within 15m of the building. Vibrations will be intermittent in nature. Advance notice to be given for high-vibration emitting activities. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 1 Beresford Square during the use of excavators and compactors. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable. Long term monitoring to be installed at property due to vibration concerns as identified in Appendix E of the CNV DWP and proximity to all construction stages.

70-76 Pitt Street 4 Historic/Vibration Sensitive

61-65 Pitt Street

Sensitive

Vibrations may be felt within 70-76 Pitt Street during the use of excavators and compactors. Further liaison will take place and high-vibration emitting activities scheduled outside of early morning and evening hours, when building occupants may be sleeping. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 61-65 Pitt Street during the use of excavators and compactors. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable. Long term monitoring to be installed at this property.

243 Karangahape Road 4 Historic/Vibration Sensitive

51 Pitt Street 5 Historic/Vibration Sensitive

A vibration logger is installed inside the Johnny Feedback shop, with a trigger alert level set at 2.5 mm/s. The device sends alerts to the construction team when the trigger alert level is exceeded. The construction team uses this information to help manage vibration from the construction site. The monitoring results, along with a summary of exceedances recorded, are provided in a monthly report to Auckland Council. It is expected this vibration logger will remain in place for the duration of the PRR works.

Vibrations may be felt during the use of excavators and compactors. Further liaison will take place and high-vibration emitting activities scheduled outside of early morning and evening hours, when building occupants may be sleeping.

Vibration may be felt within 51 Pitt Street during the use of excavators and compactors. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

4-6 Beresford Square 5 Historic/Vibration Sensitive

8-12 Beresford Square 5 Historic/Vibration Sensitive

22 Beresford Square 5 Residential

Vibration may be felt within 4-6 Beresford Square during the use of excavators and compactors. Further liaison will take place and high-vibration emitting activities scheduled before 3pm, when building occupants may be affected after opening hours. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 8-12 Beresford Square during the use of excavators and compactors. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 22 Beresford Square during the use of excavators and roller compactors within 8m of the building. However, vibration will be intermittent in nature and over a limited duration of 5 days per stage. Monitoring will be carried out once construction works begin within 8 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select

16-18 Beresford Square

40 Pitt Street

Sensitive

low vibration-emitting equipment where practicable. Further liaison will take place and high-vibration emitting activities scheduled outside of early morning and evening hours, when building occupants may be sleeping.

Vibration may be felt within 16-18 Beresford Square during the use of excavators and compactors. Further liaison will take place and high-vibration emitting activities scheduled outside of sensitive hours, when building occupants may be affected when venue is operating.

Vibration may be felt at the rear of 283 Karangahape Road during the use of excavators and compactors. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibrations may be felt within 40 Pitt Street during the use of excavators and compactors. Further liaison will take place and high-vibration emitting activities scheduled outside of early morning and evening hours, when building occupants may be sleeping. Monitoring will be carried out once construction works begin within 15 metres of the building to determine the actual levels of vibration from the equipment used. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.A vibration logger is installed inside the Fire Station, with a trigger alert level set at 2.5 mm/s. The device sends alerts to the construction team when the trigger alert level is exceeded. The construction team uses this information to help manage vibration from the construction site. The monitoring results, along with a summary of exceedances recorded, are provided in a monthly report to Auckland Council. It is expected this vibration logger will remain in place for the duration of the PRR works.

18 East Street 8 Historic/Vibration Sensitive

27 East Street 13 Historic/Vibration Sensitive

Vibration may be felt during the use of excavators and compactors within 15m of the building. However, vibration will be intermittent in nature and over a limited duration of 5 days per stage. Further liaison will take place and high-vibration emitting activities scheduled outside of sensitive activities and events when building occupants may be affected.

Vibration may be felt within 27 East Street during the use of excavators and compactors within 15m of the building. Vibrations will be intermittent in nature. Advance notice to be

25 East Street 13 Historic/Vibration Sensitive

229 Karangahape Road 13 Historic/Vibration Sensitive

given for high-vibration emitting activities. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 25 East Street during the use of excavators and compactors within 15m of the building. Vibrations will be intermittent in nature. Advance notice to be given for high-vibration emitting activities. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 229 Karangahape Road during the use of excavators and compactors within 15m of the building. Vibrations will be intermittent in nature. Advance notice to be given for high-vibration emitting activities. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

23 East Street 13 Historic/Vibration Sensitive

78 Pitt Street 13 Historic/Vibration Sensitive

Vibration may be felt within 23 East Street during the use of excavators and compactors within 15m of the building. Vibrations will be intermittent in nature. Advance notice to be given for high-vibration emitting activities. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Vibration may be felt within 78 Pitt Street during the use of excavators and compactors within 15m of the building. Vibrations will be intermittent in nature. Advance notice to be given for high-vibration emitting activities. The Project team will review the construction methodology and select low vibration-emitting equipment where practicable.

Communication and Consultation

Section 7 of the CNV DWP details the communication and engagement procedures in relation to construction noise and vibration effects. The complaints process is detailed in Section 7.2 of the CNV DWP

Consultation with affected stakeholders regarding the PRR works has not yet taken place at the time of writing of this document. It is likely that changes to building occupants, uses and hours of operation due to the Covid-19 pandemic will have happened between the time of writing of this SSCNVMP and the start of the PRR works.

Consultation for the PRR works will take place prior to the commencement of the PRR works, and generally following the processes mapped out in the Communication and Consultation Plan (CCP). This will involve a programme of targeted engagement that provides affected stakeholders with advanced notice on works staging, activities, programme and duration. The discussions will include possible solutions to alleviate stakeholder concerns. Outcomes and resultant actions of these discussions will be used to update Table 4-1. Where any comments by stakeholders have not been incorporated, the reason for this will be set out. An updated SSCNVMP will be submitted to Council with a record of this consultation prior to construction in accordance with the process summarised in Section 1.

Additional to the engagement above, at least two weeks prior to high noise generating activities taking place within 50m of the receivers identified in Table 4-1, advance communication of the works shall be provided to the affected receivers (unless a different notice period has been agreed upon during consultation). The communication shall set out the total duration of the noisy works, the likely duration of high noise generating activities immediately adjacent to the receiver, and any measures being taken to mitigate noise and vibration. Confirmation shall be provided 48 hours prior to the works commencing.

Similarly, at least two weeks prior to high vibration generating activities taking place within 15m of the receivers identified in Table 4-3, advance communication of the works shall be provided to the affected receivers (unless a different notice period has been agreed upon during consultation). The communication shall set out the total duration of the vibration generating works, the likely duration of high vibration generating activities immediately adjacent to the receiver, and any measures being taken to mitigate vibration. Confirmation shall be provided 48 hours prior to the works commencing.

Monitoring

Section 8 of the CNV DWP provides details of the methodology for noise and vibration monitoring.

6.1 Noise Monitoring

Noise monitoring will be carried out when use of the concrete saw and concrete breaker begins within 30 meters of the buildings identified in Table 6-1. The monitoring will be carried out at first floor level unless it is not possible to gain access.

Table 6-1: Noise Monitoring Locations

1 Cross Street

9 Mercury Lane

14 East Street

from façade of building

from façade of building

from façade of building

238 Karangahape Road 1m from façade of building

22 Beresford Square 1m from façade of building

1 Beresford Square 1m from façade of building

59 Pitt Street 1m from façade of building

61 - 65 Pitt Street 1m from façade of building

70 – 76 Pitt Street 1m from façade of building

25 East Street 1m from façade of building

18 East Street 1m from façade of building

8-12 Beresford Square 1m from façade of building

59 Pitt street 1m from façade of building

70-76 Pitt Street 1m from façade of building

19 Beresford Square 1m from façade of building

251-253 Karangahape road 1m from façade of building

258-264 Karangahape Road 1m from façade of building

82-84 Pitt Street 1m from façade of building

36 Day Street 1m from façade of building

6.2 Vibration Monitoring

Vibration monitoring will be carried out when works begin on site to determine actual equipment vibration levels and the attenuation provided by local ground conditions. If the initial vibration monitoring demonstrates that the emission radius for the excavator is similar to that identified in the CNV DWP, then the monitoring as detailed below will be carried out. If this monitoring demonstrates that vibration levels are significantly lower, then fewer properties may require monitoring. If they are higher, more properties may require monitoring.

Vibration monitoring will be carried out at the following receivers when use of the roller compactor occurs within 15 meters of these buildings:

• 238 Karangahape Road

• 19 Beresford Square

• 1 Cross Street

• 9 Mercury Lane

• 246 Karangahape Road

• 59 Pitt Street

• 68 Pitt Street

• 235 Karangahape Road

• 84 Pitt Street

• 82 Pitt Street

• 80 Pitt Street

• 1 Beresford Square

• 70-76 Pitt Street

• 61-65 Pitt Street

• 243 Karangahape Road

• 51 Pitt Street

• 4-6 Beresford Square

• 8-12 Beresford Square

• 22 Beresford Square

• 16-18 Beresford Square

• 283 Karangahape Road

• 40 Pitt Street

• 18 East Street

• 27 East Street

• 25 East Street

• 229 Karangahape Road

• 23 East Street

• 78 Pitt Street

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