Sleeman Sports Complex Initial Assessment Report ... · acoustic report concept design stage - legacy mode queensland state velodrome sleeman sports precinct, chandler emf griffiths

Appendix 12

Acoustic Report

ACOUSTIC REPORT

CONCEPT DESIGN STAGE - LEGACY MODE

QUEENSLAND STATE VELODROME

SLEEMAN SPORTS PRECINCT, CHANDLER

EMF GRIFFITHS Consulting Engineers

DSDIP / STADIUMS QUEENSLAND Client

COX RAYNER ARCHITECTS Architects

ISSUE 2

APRIL 07 2014

Project No. S213683

EMF GRIFFITHS – ACOUSTIC CONSULTANTS

Queensland State Velodrome i Acoustic Report – Issue 2 S213683AcousticRev2-gbp – April 07 2014

DOCUMENT CONTROL DOCUMENT ID: s213683AcousticRev2-gbr

Issue Number

Date Issue Description Typed By

Author Authorisation Verification

A February 11 2014 PRELIMINARY ISSUE KS GB 0 March 07 2014 CONCEPT DESIGN

ISSUE KS GB

1 March 20 2014 REVISED CONCEPT DESIGN ISSUE

KS GB

2 April 07 2014 REVISED CONCEPT DESIGN ISSUE

KS GB


Queensland State Velodrome ii Acoustic Report – Issue 2 S213683AcousticRev2-gbp – April 07 2014

INDEX

SECTION 1 SITE DESCRIPTION .................................................................................................................... 1

1.1 INTRODUCTION ....................................................................................................................................... 1

1.2 BACKGROUND ......................................................................................................................................... 1

1.3 OBJECTIVES ............................................................................................................................................. 2

1.4 SUBJECT SITE –LOCATION & DESCRIPTION ........................................................................................ 2

SECTION 2 GENERAL AMENITY ISSUES ..................................................................................................... 3 2.1 NOISE SENSITIVE RECEIVERS .............................................................................................................. 3

2.2 EXISTING NOISE AMENITY ..................................................................................................................... 3

2.3 NOISE SOURCES ..................................................................................................................................... 6

SECTION 3 ACOUSTIC DESIGN CRITERIA ................................................................................................... 8 3.1 NOISE CRITERIA ...................................................................................................................................... 9

SECTION 4 NOISE EMISSION ASSESSMENT ............................................................................................. 13 4.1 NOISE CALCULATION METHODOLOGY ............................................................................................... 13

4.2 NOISE CALCULATION RESULTS .......................................................................................................... 13

SECTION 5 INTERNAL NOISE QUALITY ASSESSMENT ........................................................................... 14 5.1 REVERBERATION .................................................................................................................................. 14

5.2 SEPARATION .......................................................................................................................................... 16

SECTION 6 DISCUSSION & RECOMMENDATIONS .................................................................................... 18 SECTION 7 APPENDICES............................................................................................................................. 19


Queensland State Velodrome 1 Acoustic Report – Issue 2 S213683AcousticRev2-gbp – April 07 2014

SECTION 1 SITE DESCRIPTION 1.1 INTRODUCTION

EMF Griffiths have been commissioned to provide acoustic consultancy for the architectural and building services for the Queensland State Velodrome (the Subject Site) and Sleeman Sports Complex site Masterplan:

The velodrome project and masterplan comprises:-

The velodrome track and spectator seating. The space is also to be used for a variety of sports and leisure activities which are currently not defined.

The under-concourse community, change, lounge/dining and administration centre.

High Performance Centre.

Cycling Queensland and cycling-related tenancies and the Sports Medicine tenancy.

Further tenancies and a café opening out to the south-eastern arrival plaza (the ‘Cycle Plaza’).

Corporate Function Centre.

The supporting areas are listed below:-

Café / Merchandise

Common Facilities

Community Facilities

Competition / Race Officials

High Performance Centre

Cycling Queensland Tenancy

Cycling related Tenancies

Shared Tenancy Facilities

Sports / Medical Tenancy

Public Areas

The masterplan includes the exiting site uses, the relocated velodrome and an additional leisure facility with a use currently not yet determined along with revised site car parking arrangements.

1.2 BACKGROUND An acoustic assessment is required for the following elements of the site masterplan and velodrome project:-

Acoustic design of building to provide acceptable noise amenity for facility users.

Acoustic design in relation to mechanical services.

Acoustic treatment required for mechanical plant.

Acoustic protection of neighbouring properties.

Design in accordance with relevant codes and standards and in accordance with the local government (BCC) and federal government requirements including requirements for establishment of development as an Entertainment Venue

Airborne noise emissions from the site are required to be assessed for emission impacts at the adjacent neighbouring buildings and at the property boundary.

Australian Standard AS22107:2000-Acoustics-recommended design sound levels and reverberation times for building interiors (AS).



Brisbane City Council City Plan 2000 – Noise Impact Assessment Planning Scheme Policy – Volume 2 (BCC).

Environmental Protection (Noise) Policy 2008 (EPP).

1.3 OBJECTIVES A Noise Emission Study as follows:-

Study of ambient noise at site to determine the existing noise amenity and relevant environmental noise criteria.

Characterisation of noise emissions associated with the mechanical plant (including pumps and fan noise) and activities (e.g. on site vehicle movements) associated with the redevelopment.

Acoustic Design of Noise Control Measures for Mechanical Ventilation. The noise emanating from the mechanical ventilation system shall be in accordance with the requirements of Appendix B of the Australia Standard AS 1055.2-1984 (Description and Measurement of Environmental Noise).

Acoustic design based on measured Environmental Noise statistical noise characterisation parameters accounting for:-

- Tonality. - Frequency weighting. - Impulsive characteristics. - Fluctuations and temporal content. - Recommended maximum planning noise levels.

Calculations to determine the extent of noise impact at the site boundary and to the nearest noise sensitive receivers.

Also, an Internal Acoustic Amenity study is required to establish internal noise targets (noise levels and reverberation time) and appropriate construction types for the internal spaces.

1.4 SUBJECT SITE –LOCATION & DESCRIPTION

The proposed development is located in Chandler QLD at the Sleeman Precinct. The aerial view below shows the site location.

Figure 1: Aerial View of Subject Site



SECTION 2 GENERAL AMENITY ISSUES

2.1 NOISE SENSITIVE RECEIVERS

The Subject Site is located approximately 600m from the nearest noise sensitive receiver to the North of the proposed development, 500m from the nearest receiver to the west and 500m from the nearest receiver to the south.

Figure 2: Nearest Noise Sensitive Receivers

2.2 EXISTING NOISE AMENITY

Noise Levels were measured at the subject site boundaries (see Figure below) over the period Thursday 16 January 2014 to Wednesday 22nd January 2014 to determine background noise levels around the subject site during daytime, evening and night time periods over the weekend and during week days.

Residential 3

Residential 1

Residential 2

N 200m



Figure 3: Location of Noise Monitoring Equipment

The operation of the sound level measuring equipment was field calibrated before and after the measurement and was found to be within 0.1 dB of the reference signal. All instrumentation used in this assessment hold a current calibration certificate from a certified NATA calibration laboratory. The following instruments were used to measure the ambient noise levels:-

Larson Davis 831 Type 1 Sound Logger.

Rion NC-73 Calibrator.

Ambient sound pressure levels were measured generally in accordance with Australian Standard AS1055.1:1997 - ‘Acoustics-Description and measurement of environmental noise - Part 1: General procedures’. Ambient noise levels were recorded at 15 minute intervals over the 24 hour periods from Thursday 16 January 2014 to Wednesday 22nd January 2014. The 15 minute results for a typical weekdays and weekends for each location are shown in Appendix B. The results are summarised overleaf for the three locations:-

N



Location: North Period

Time Noise Level dB(A) LAeq LA90 LA10

Weekday Day 0700-1800 64 56 67

Evening 1800-2200 62 53 65 Night 2200-0700 61 45 61

Weekend Day 0700-1800 63 54 66 Evening 1800-2200 61 52 65 Night 2200-0700 60 44 61

Location: East Period


Weekday Day 0700-1800 54 50 55 Evening 1800-2200 52 48 53 Night 2200-0700 48 41 48


Location: South


Weekday Day 0700-1800 51 45 54 Evening 1800-2200 51 42 46 Night 2200-0700 45 36 43


Table 1: Noise Survey Results

The measured evening, night-time and weekend noise can be considered typical. The noise sources noted from the site survey were traffic noise from adjacent local roads and from users on the site road. The northern part of the site is dominated by the local traffic noise. The eastern boundary has some road noise during the day. The southern boundary is quiet and typical of a low density residential / rural location.



2.3 NOISE SOURCES

The locations of the noise sources associated with the development of the subject site are shown in the following figure along with the pre-existing noise sources:-

Figure 4: Site Noise Sources

2.3.1 Mechanical Plant

External Noise Intrusion, generally from plant noise, is considered in this report. In most cases the transmission path will be via airborne noise. In some circumstances, regenerated noise as a result of vibration may also be an issue. Intrusive noise can generally be classified as either continuous or intermittent. Continuous noise, even though it might vary from time to time, is measured using a procedure to determine its equivalence over a representative time period. The continuous measurement is normally expressed as LAeq whereas intermittent noise is measured as the arithmetic average of the maximum sound level readings expressed as LAmax,avg. Mechanical Plant Equipment comprises continuous noise sources as follows:-

Sound Power (dB(A)) Frequency (Hz) 63 125 250 500 1k 2k 4k 8k Total

Equipment Pumps 10 off 64 72 73 67 62 62 60 58 77 Exhaust Fan 10 off 64 72 73 67 62 62 60 58 77 Condenser Fans -10 off 64 72 73 67 62 62 60 58 77 Generator – temporary installation for legacy events

66 74 76 78 78 74 68 67 85dB(A) @1m

Reference: Typical Manufacturers Data Table 2: Sound Power and Number of Mechanical Plant

Stadium Noise (Building Users P.A.)

Concourse Noise

Fan/Pump Noise from Building Services

Car Park Noise (Existing)

Car Park Noise (Existing)

Site Traffic (Existing)



2.3.2 Waste and Car Park Vehicle Movements

The main car parks are located at the north, south and west of the subject site. The noise due to entrance and exiting of the vehicles (vehicles starting moving off) has been modelled. Operating times are between 0700-2200hrs during week and weekend periods (with the exception of waste vehicle movements which are during the day time period only (0700-1600hrs) These noise sources are intermittent and typical sound power levels from these events are shown below:-

Description LAmax Waste Vehicle Movement 100dB(A) Internal Car Movement (starting up) 98dB(A) Internal Car Movement (entering/leaving) 94dB(A)

Reference: 2/1/1991 Technical Paper from a study of noise emission from Gas stations - TÜV Hessen Table 3: Sound Levels from Vehicle Movements

2.3.3 Velodrome Noise

These noise sources are intermittent and typical sound power levels from typical events to be held at the subject are shown below. Operating times are between 0700-2200hrs during week and weekend periods.

Description LAmax Spectator (all cheering) during typical sporting event,

110dB(A)

Amplified Music (concert) 115dB(A) Pedestrian 60 dB(A) at boundary of the area Concourse – General Noise 55-65 dB(A) at boundary of the area Concourse – Amplified Music/PA System 65 dB(A) at boundary of the area

Reference: ÖAL-Guideline No. 21 (Page3), 1.Edition/March 1982 Chapter 4.2.1.] Table 4: Sound Levels from Patrons

Note the velodrome area is designed to be a relatively open structure to allow for natural ventilation. The detailed location of the ventilation paths are under development. For the propagation modelling a 10dB(A) reduction in the internal noise at the facade has been allowed for the wall transmission loss.

Also, the roof design concept includes an acoustically transparent fabric oval section over the interior of the track and steel deck roof over the track, seating and access ways. For the purpose of modelling noise emissions via the roof have been modelled as transparent i.e. no acoustic loss.

Due to the openness of the external building fabric, a Noise Control Plan is recommended to establish noise emissions limits for any proposed amplified music events. Note that due the distance and shielding from the nearest noise sensitive receivers the emission limits will not be particularly onerous.

2.3.4 Rain Noise

Rain noise onto the sheet metal roof of the project is a potential noise source:-

Description LAeq Noise within space from Rain impacting uninsulated metal roof 80

Table 5: Sheet Metal Rain Noise Source



2.3.5 Traffic Noise

The traffic noise levels, within a planning horizon of 10 years, were calculated using the noise calculation model SoundPLAN. Calculations are based on the procedures developed by the U.K. Department of Transport, Welsh Office, issued as “Calculation of Road Traffic Noise” in 1988 (CoRTN’88). The traffic flows for the Old Cleveland Road and Tilley Road are presented in the table below based on the traffic engineers report (ARUP Traffic Report- CID Rev02 dated 1 April 2014),

AADT 2014 Traffic Flow - 24 hr % heavy vehicles Weekday Weekend Weekday Weekend Old Cleveland Road 26,468 23,036 4 1

Tilley Road 1,074 2,218 5 4

Table 5: Traffic Data for CORTN Model The predicted traffic flows were scaled down by a factor of 0.95, to represent the 95-percentile traffic flow in an 18-hour period between 6:00 a.m. and 12:00 midnight. The relocation of the velodrome from the north east to the south of the site is not expected to generate limited additional traffic demand and results in a redistribution of traffic flows within the site and at the access points. The future new leisure facility identified in the masterplan has been estimated at generating the following additional volumes based on the traffic engineering report. Road AADT Traffic Flow - 24 hr

Additional Trips Heavy Vehicles (%)

Weekday Weekend Weekday Weekend Old Cleveland Road 523 694 4 1

Tilley Road 58 77 5 4 Table 6: Traffic Data for CORTN Model

Peak parking demand for the redeveloped site is estimated at 1,329 parking spaces distributed around the internal site car parks.

2.3.6 Future development as part of the masterplan Note that future developments of the site which are part of the masterplan but are currently undefined are to be subject to acoustic assessments in accordance with the relevant local and state regulatory requirements. These currently include:-

o Australian Standard AS2107:2000-Acoustics-recommended design sound levels and reverberation times for building interiors (AS).

o Brisbane City Council City Plan 2000 – Noise Impact Assessment Planning Scheme Policy – Volume 2 (BCC).

o Environmental Protection (Noise) Policy 2008 (EPP).



SECTION 3 ACOUSTIC DESIGN CRITERIA 3.1 NOISE CRITERIA

3.1.1 Noise Emission Criteria

Table 6 below presents a summary of the environmental noise emission criteria applicable to the site.

Item Sensitive Use Area Descriptor Noise Goal, dB(A)

Continuous Noise emissions from site

Property Boundaries LAeq ≤ LA90

Intermittent Noise emissions from site

Property Boundaries LAeq,adj,1hr ≤LA90+5dB(A)

Mechanical Plant and Refrigeration Equipment Noise Emission

Property Boundaries

LAeq(adj) Day

50

LAeq(adj) Night 50

Table 7: Noise Emission Criteria



In addition, the Australian Standard AS/NZS 2107:2000 recommends the following interior noise level targets for the rooms:-

Sheet Number

Sheet Name

Functional adjacency

Acoustic requirements

Noise Level LAeq Reverberation Time RT60

RDS 01 RDS Kitchen linked to Cafe area with access to stores and loading compound 45-55 -

RDS 02 RDS Cafe Servery Located on concourse area to serve both track and BMX. Seating to be located on concourse area. 45-55 -

RDS 03 RDS Cafe Store Near to the Cafe - - RDS 04 RDS Chiller Access to Kitchen and loading compound - - RDS 05 RDS Dry Goods Access to Kitchen and loading compound - - RDS 06 RDS Furniture Store Access directly or via lift to function area and cafe - - RDS 07 RDS Delivery Compound External loading access for delivery and refuse pick up - -

RDS 08 RDS Loading Store External access from vehicle entry point - -

RDS 09 RDS PWD Public access area on concourse level 45-55 - RDS 10 RDS WC Male Public access area mainly on concourse level but with some on lower level 45-55 - RDS 11 RDS WC Female Public access area mainly on concourse level but with some on lower level 45-55 - RDS 12 RDS Cleaner Lower level Located near to athlete change areas on lower level - -

RDS 13 RDS Cleaner Upper level Located near cafe areas on the concourse area - -

RDS 14 RDS Function Room and servery

Access from Kitchen via lift. Views along start / finish line on track and over BMX. access to high level seating 45-55 <1.0

RDS 15 RDS Maintenance material store and workshop Located near bike store areas and the track access - -

RDS 16 RDS Event Store Located near external track access point - -

RDS 17 RDS Furniture store 1 Located at lower level with access to track - -

RDS 18 RDS Furniture store 2 Located at upper level near cafe area - -

RDS 19 RDS Chemical store Located near amenities area - -

RDS 20 RDS Tech Store lower Located near amenities area - -

RDS 21 RDS Tech Store upper Located on concourse level - -

RDS 22 RDS Motorbike Store Located near external track access point - -

RDS 23 RDS Cycle workshop store Located next to work shop areas - -

RDS 24 RDS Caged infield activity store 1 Located near inner field of play and desirably near external track access point - -

RDS 25 RDS Caged infield activity store 2 Located near inner field of play and desirably near external track access point - -

RDS 26 RDS Main Switch Room Located near Substation - -

RDS 27 RDS Data / Server Room 1 Located at opposite sides of stadium for data coverage - -

RDS 28 RDS Data / Server Room 2 Located at opposite sides of stadium for data coverage - -

RDS 29 RDS Electrical As required by design - -

RDS 30 RDS Electrical Cupboard As required by design - -



Sheet Number

Sheet Name


Acoustic requirements RDS 31 RDS Public first aid room Located near entry point with access to ambulance bay 40-45 0.6-0.8 RDS 32 RDS Mech store Located on Concourse level around Cafe area - -

RDS 33 RDS Athlete WC Male Located near cycle track with access via ramp 45-55 - RDS 34 RDS Athlete WC Female Located near cycle track with access via ramp 45-55 -

RDS 35 RDS Athlete Bike Store Located near cycle track with access via ramp preferably on route from change areas - -

RDS 36 RDS Athlete Workshop Located near bike stores 45-55 -

RDS 37 RDS Athlete change rooms male Located near cycle track with access via ramp 45-55 -

RDS 38 RDS Athlete change rooms female Located near cycle track with access via ramp 40-45 0.6-0.8

RDS 39 RDS Athlete first aid room Located near athlete change areas with access to ambulance bay 40-45 0.6-0.8 RDS 40 RDS Athlete bike stow area Located on route from entry to change areas - -

RDS 41 RDS Athlete Lounge Located near change rooms 40-45 0.6-0.8 RDS 42 RDS General reception Located at main entry point to allow control of entry to track and tenancy areas 40-45 - RDS 43 RDS Server Room In competition suite - -

RDS 44 RDS Event Meeting Rooms In competition suite 40-45 0.4-0.6

RDS 45 RDS Competition / Race Offices In competition suite 40-45 0.4-0.6

RDS 46 RDS Competition Store In competition suite - -

RDS 47 RDS Doping Control In competition suite with access from track area 40-45 0.4-0.6 RDS 48 RDS Treatment In High performance suite with links to athlete change areas 40-45 0.4-0.6 RDS 49 RDS Recovery / Spa In High performance suite with links to athlete change areas 40-45 0.4-0.6 RDS 50 RDS HP Office In High performance suite with links to athlete change areas 40-45 0.4-0.6 RDS 51 RDS HP Consult Room In High performance suite with links to athlete change areas 40-45 0.4-0.6 RDS 52 RDS HP Store In High performance suite with links to athlete change areas - -

RDS 53 RDS Common Meeting Room In tenancy suite with access from common tenancy circulation and reception 40-45 0.4-0.6 RDS 54 RDS Common Reception In tenancy suite at entry point with access to tenancy circulation 40-45 0.4-0.6 RDS 55 RDS Tenancy 1 In tenancy suite 40-45 0.4-0.6 RDS 56 RDS Tenancy 2 In tenancy suite 40-45 0.4-0.6 RDS 57 RDS Tenancy 3 In tenancy suite 40-45 0.4-0.6 RDS 58 RDS Tenancy 4 In tenancy suite 40-45 0.4-0.6 RDS 59 RDS Pilates Sports Medicine suite in general exercise zone linked to reception 40-45 0.4-0.6 RDS 60 RDS Gym area Sports Medicine suite in general exercise zone linked to reception 40-45 0.4-0.6 RDS 61 RDS Cubicle area Sports Medicine suite in general exercise zone linked to reception 40-45 0.4-0.6 RDS 62 RDS Open training area 1 Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6 RDS 63 RDS Open training area 2 Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6 RDS 64 RDS Exercise area Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6 RDS 65 RDS Physio office 1 Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6 RDS 66 RDS Physio office 2 Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6



Sheet Number

Sheet Name


Acoustic requirements RDS 67 RDS Physio office 3 Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6 RDS 68 RDS Physio office 4 Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6 RDS 69 RDS Physio office 5 Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6 RDS 70 RDS Physio wet area Sports Medicine suite grouped in physio zone linked to reception 40-45 0.4-0.6 RDS 71 RDS Massage room 1 Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 72 RDS Massage room 2 Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 73 RDS Massage office Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 74 RDS Acupuncture room Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 75 RDS Podiatry room Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 76 RDS Women’s Health room Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 77 RDS Women’s Health office Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 78 RDS Consulting room 1 Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 79 RDS Consulting room 2 Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 80 RDS Consulting room 3 Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 81 RDS Consulting room 4 Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 82 RDS Consulting room 5 Sports Medicine suite grouped in Consultation suite linked to reception 40-45 0.4-0.6 RDS 83 RDS Consulting filing room Sports Medicine suite grouped in Consultation suite linked to reception - -

RDS 84 RDS Staff kitchen Sports Medicine suite back of house / office area 40-45 0.4-0.6 RDS 85 RDS Practice managers office Sports Medicine suite back of house / office area 40-45 0.4-0.6

RDS 86 RDS Reception desk and office

Sports Medicine suite. Needs DDA access from external area with graded links to car park 40-45 0.4-0.6

RDS 87 RDS Stock room Sports Medicine suite back of house / office area possibly with external loading access - -

RDS 88 RDS Filing room Sports Medicine suite back of house / office area - -

RDS 89 RDS Waiting area Sports Medicine suite linked to reception and Consultation / Physio zones 40-50 0.4-0.7 RDS 90 RDS Storage room Sports Medicine suite back of house / office area - -

RDS 91 RDS Circulation Sports Medicine to link all zones - -

RDS 92 RDS CQ Track bike store Located near track area - -

RDS 93 RDS Club Track Bike Store Located near track area - -

RDS 94 RDS CQ Road Bike Store Located near track area - -

RDS 95 RDS Road event equipment store Located near track area - -

RDS 96 RDS Training area Located near track area - -

RDS 97 RDS Bike Store Located near track area - -

Table 8: Noise Targets For the plant rooms, a Noise Rating of NR60 rating should be the targeted maximum level.



SECTION 4 NOISE EMISSION ASSESSMENT 4.1 NOISE CALCULATION METHODOLOGY

4.1.1 Computer Modelling Method

A three dimensional model was created using SoundPLAN noise propagation software. The noise sources identified in section were added to the model in the appropriate locations. A three dimensional noise map of the noise levels due to the sources was calculated. In addition, noise levels were calculated at designated locations at adjacent building facades and outdoor spaces.

4.1.2 Sound Power Levels of the Main Noise Sources Sound Power Levels of the Main Sources, as detailed in Section 2 were input into the model at the proposed locations and for appropriate durations.

4.1.3 Tonality and Impulsiveness Adjustment

Where tonal components are significant, 5dB has been added to the calculated noise level to account for the increased intrusiveness of tonal noise levels.

4.2 NOISE CALCULATION RESULTS

4.2.1 Noise Emission Calculations – All site emissions

Based on the noise sources identified in Section 2 of this report, the noise calculation results at noise sensitive are as follows:-

Location Level Noise Level - daytime / evening

Target LAeq-

Adjacent Residential Building 1 AGL + 1.5m 52 34 Adjacent Residential Building 2 AGL + 1.5m 46 28 Adjacent Residential Building 3 AGL + 1.5m 39 34

Table 9: Levels at Adjacent Receivers

4.2.2 Traffic Noise Calculations – Additional Traffic due to development on Old Cleveland Road and Tilley Road

Based on the noise sources identified in Section 2 of this report, the noise due to the additional traffic due to redevelopment of the site represents an increase of 0.1dB on the existing dominant traffic source at the site (Old Cleveland Road) which is an imperceptible increase.



SECTION 5 INTERNAL NOISE QUALITY ASSESSMENT 5.1 REVERBERATION

5.1.1 Velodrome

The space is design primarily as a sporting and leisure venue but consideration has been given to alternative uses such as community/ school concerts. The Velodrome hall walls and floors comprise mainly reflective finishes. To minimise reverberation levels to the levels targeted it is recommended that where possible facings are treated with acoustic material with absorptive properties as shown below. This is important particularly at areas where good levels of speech intelligibility are required.

Absorption Coefficients 63 125 250 500 1k 2k 4k 8k Velodrome absorptive panels (facing and liner) with cavity to rear e.g. 50mm thick polyester acoustic liner

0.2 0.4 0.7 0.8 0.8 0.8 0.8 0.8

Table 10: Velodrome Ceiling/Walls Absorption Coefficient

Absorptive material is required to reduce impact of rain noise on the roof.

Roof /Floor Typical Construction Sheet metal roof (over track and exterior)

Minimum 75mm glass wool anticon blanket. Consider interior facing with perforated sheet and insulation above to provide acoustic absorption of NRC 0.6 if music events are to be held

Fabric Roof (inside of track) Noise is uncontrolled NRC 0-0.1. This type of roof limits the effective use of the space as a music venue due to impact of rain noise on the space interior. Recommend Twin Skin fabric NRC 0.3 to improve damping and attenuation

Table 11: Velodrome Roof Treatment

5.1.2 Office/Treatment Spaces

Office A high level of absorptive material required to reduce impact of noise. This can be achieved with acoustic tiles and carpets on the floors. Applicable Area Descriptor Typical Construction Office Ceiling NRC 0.55 Ceiling tile

(e.g. Armstrong Ceramaguard) Floors Absorption

Coefficient 0.3 Floor tiles

Small Treatment Rooms

Absorption Coefficient

0.8 Ceiling Tile/Perforated plasterboard with full height walls/ Absorptive Linings to 50% of surface.

Table 12: Office / Treatment Spaces Absorption Coefficients

It is recommended 75mm thick glass wool insulation is added to the underside of any sheet metal roof exposed to rain to reduce the impact of rain noise. Mechanical Services ducts in roof space to be externally treated with acoustic lining (25mm thick with aluminium facing- e.g. ACOUSTILAG™ 20) and 25mm internal acoustic lining.



5.1.3 Multipurpose Rooms Recommend absorptive ceiling tiles finish (can be dual function as thermal absorption)

It is recommended 75mm insulation be added to the underside of metal roof to reduce the impact of rain noise. Mechanical Services ducts in roof space to be externally treated with acoustic lining (25mm thick with aluminium facing- e.g. ACOUSTILAG™ 20) and 25mm internal acoustic lining.

5.1.4 Plant Room

It is recommended plant rooms achieve a noise rating of NR60. To reduce noise levels in plant room due to operation of mechanical plant, covering 25% of the plant room surface area with acoustic absorption (50mm thick rockwool insulation behind 20% perforated metal sheet or equivalent) is recommended.

5.1.5 Internal Public Areas

To minimise reverberation levels to the levels targeted it is recommended that where possible facings are treated with acoustic material with absorptive properties as shown below. Local treatment is recommend at areas where good levels of speech intelligibility are required such a reception and registration desks

Applicable Area Descriptor Typical Construction Ceilings and Walls where practical

NRC 0.55 Perforated Panelling with absorption to rear.

Table 13: Public Area Absorption Coefficients



5.2 SEPARATION

Partition performance to maintain appropriate acoustic privacy between spaces as per the table below:-

Noise Tolerance in Receiving Room

Source Room Activity Noise Very Low Low Med High

High Rw 35 Rw 40 Rw 45 Rw 50 Medium Rw 40 Rw 45 Rw 50 Rw 55 Low Rw 45 Rw 50 Rw 55 Rw 60 Very Low Rw 50 Rw 55 Rw 60 Rw 65

Table 14: Acoustic Partition Performance requirements.

The following constructions are recommended to maintain adequate levels of acoustic separation between space types and to control noise emissions.

Applicable Area Minimum

Acoustic Rating

Description Typical Construction

Walls Between Office and Multipurpose areas. Between Offices and Changing Rooms/Store.

Rw 40 Loud speech heard 1 layer 13mm plasterboard each side of 64mm steel stud with glass wool 50mm batt in cavity. Walls continuous to ceiling.

Between Plant room and velodrome Between Plant room and Changing Rooms. Bounding Construction of Treatment Rooms.

Rw 45 High mass to improve low frequency attenuation for mechanical plant noise.

155kg/m2, 190mm thick blockwork rendered and sealed on one side and continuous to roof or 1 layer 13mm fire rated plasterboard each side of 64mm steel stud with glass wool 75mm batt in cavity. Walls continuous to ceiling.

Plant Room External Walls Rw 45 High mass to improve low frequency attenuation for mechanical plant noise.

155kg/m2, 190mm thick blockwork rendered and sealed on one side and continuous to roof.

Inter-tenancy Walls Rw 45 Normal Speech Inaudible 155kg/m2, 190mm thick blockwork rendered and sealed on one side and continuous to roof.

Lightweight external walls Rw 40 Loud speech heard External cladding with 1 layer 13mm plasterboard of 64mm steel stud with glass wool 50mm batt in cavity.

Glazing Between Velodrome and adjacent spaces where privacy is required.

Rw 30 Normal Speech audible 6.38mm laminated glass.

Internal Operable Glass Louvres where privacy control is required

Rw 30 (closed)

Normal Speech audible 6.38mm laminated glass.

External Wall Glazing Panels Rw 30 Normal Speech audible 6mm float glass.



Applicable Area Minimum Acoustic Rating

Description Typical Construction

Doors Between Velodrome/Plant Rooms and adjacent spaces where privacy is required Between adjacent spaces where privacy is required

Rw 30 Normal Speech audible 35mm timber door with rebated seals. 6.38mm laminated fully glazed doors with rebated seals. Door frames to be caulked

Floors

Between Plant Room floor and spaces below

Rw+Ctr 51 High mass to improve low frequency attenuation for mechanical plant noise. Plant mounted on isolation pads.

150mm bondek slab with 13mm plasterboard ceiling or ceiling tile system fixed to furring channel on resilient mounts and 50mm thick 11kg/m3 glass wool in cavity.

Ceilings/Roofs

Velodrome Roof (over track) Rw 20-28 Colorbond Roof with 75mm thick 15kg/m3 anticon blanket under purlins. (Note: uninsulated metal roof has Rw17-23) OPTION: consider interior facing with perforated sheet and insulation above to provide acoustic absorption if music events are to be held (Rw24-30).

Velodrome Roof (interior track) Rw 0-10 Transparent –Noise uncontrolled

PTFE lightweight fabric. Recommend Twin Skin fabric to improve damping and rain noise attenuation.

Where duct work above and / or air conditioning units in roof space or adjacent to mechanical exhaust/intake louvre

Rw 42 High mass to improve low frequency attenuation for mechanical plant noise.

13mm fire rated plasterboard or ceiling tile and 75mm thick 11k/m3 glass wool or 50mm thick polyester fibre in cavity or equivalent local treatment to A/C unit and in ceiling duct work.

Between Office/First Aid and Changing rooms

CAC 35 Loud speech heard. E.g. Armstrong Ceiling tile system.

Above Plant Rooms Rw 20 Normal Speech audible Colorbond Roof with 75mm thick 11kg/m3 anticon blanket under purlins.

Table 15: Acoustic Separation – Walls, Glazing, Doors and Floors



SECTION 6 DISCUSSION & RECOMMENDATIONS The noise levels due to the Mechanical Plant at the receivers adjacent to the site boundaries are acceptable

provided the plant design incorporates the attenuation measures as specified in this report or equivalent.

Adequate acoustic separation between space types is obtained provided the proposed construction types detailed in this report are integrated into the building design.

Noise levels within the various space types will be acceptable provided the proposed construction types detailed in this report are integrated into the building design.

The open structure of the velodrome and use of a lightweight roof limits the use of the space for music

events. Rain noise will not be controlled within the space and the space is reverberant. Options to improve the quality of the reverberant space have been recommended and can be incorporated as part of the subsequent design stages as required.

The open external building fabric required for natural ventilation and the lightweight roof limit the use of the

space for events with a high level of amplified noise. A noise management plan and controls of the amplified noise level are required for these events and are recommended to be developed in accordance with the BCC requirements for Entertainment Venues.

The increase in traffic noise due to the site re development is negligible due to the minimal increase

traffic volumes associated with the relocation of the velodrome and the future leisure facility.



SECTION 7 APPENDICES A – Noise Map showing daytime/evening sound field. B – Noise Survey Results



APPENDIX A – NOISE MAP SHOWING DAYTIME SOUND FIELD



APPENDIX B – NOISE SURVEY RESULTS



Northern Boundary –Typical Weekend

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Northern Boundary –Typical Weekday

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Eastern Boundary –Typical Weekend

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Eastern Boundary –Typical Weekday

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Southern Boundary –Typical Weekend

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Southern Boundary –Typical Weekday

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Appendix 13

EMR / CLR Search

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Sleeman Sports Complex Initial Assessment Report ... · acoustic report concept design stage - legacy mode queensland state velodrome sleeman sports precinct, chandler emf griffiths