Assessment - Draft. Assessment - Draft. Ripley Valley Amex SUCE Development Stages ROL Phase

Road Traffic Traffic Noise Noise Impact Impact Assessment - Draft Assessment - Draft Ripley Valley Amex SUCE Development Stages 33-37 ROL Phase Ripley Valley Amex SUCE Development Stages 33-37 ROL Phase A038_790439 Prepared for AMEX Corporation July 2017

Document Information Prepared for AMEX Corporation Project Name File Reference PR_A038_790439_Stages 33_to_37_02JM.docm Job Reference A038_790439 Date July 2017 Contact Information Cardno QLD Pty Ltd Trading as Cardno ABN 57 051 074 992 L11 Green Square North Tower 515 St Pauls Terrace Fortitude Valley QLD 4006 Telephone: 07 3369 9822 Facsimile: 07 3369 9722 International: +61 7 3369 9822 julie.mcdonagh@cardno.com.au Document Control Versio n Date Author Author Initials Reviewer 01 15/06/2017 Draft Liam McDonagh LM Julie McDonagh JM 02 05/07/2017 Draft Liam McDonagh LM Julie McDonagh JM Reviewe r Initials Cardno 2017. Copyright in the whole and every part of this document belongs to Cardno and may not be used, sold, transferred, copied or reproduced in whole or in part in any manner or form or in or on any media to any person other than by agreement with Cardno. This document is produced by Cardno solely for the benefit and use by the client in accordance with the terms of the engagement. Cardno does not and shall not assume any responsibility or liability whatsoever to any third party arising out of any use or reliance by any third party on the content of this document. July 2017 Cardno ii

Executive Summary This report assesses the predicted road traffic noise, from the Centenary Highway, and other nearby local roads impacting on the proposed Ripley Valley (AMEX SUCE) development. This updated version has been produced to address the Reconfiguration of Lot (ROL) phase for Stages 33 to 37. This report assesses the predicted road traffic noise impact for the 10 year planning horizon after completion of the project in 2031, in accordance with the relevant statutory assessment criteria for road traffic noise impact. Previous versions of this acoustic report had included the option of acoustic barriers along internal roads within the site, as a form of noise control. In accordance with the development approval conditions for the project for earlier stages, the option of acoustic barriers on internal roads has been removed from the assessment. Terrain elevation data for the subject site was updated with the finished earthworks plan for the site (issued 24 September 2015). The centre of lot spot heights, are tabulated in the results section (Section 7.3). This revision has been updated to reflect the revised Lot Layout plan received in June 2017. It should be noted that the earthworks levels reflect finished bench levels for Stages 33 to 37. The assessment has been carried out and recommendations have been developed in general accordance with Neighbourhood Master Plan (NMP) strategies and thereby addresses relevant State and Local Government strategies and policies, including the following: Ipswich City Council (Ripley Valley SUCE Stages 10-54 Decision Notice). Economic Development Queensland (EDQ) (Ripley Valley SUCE stage 1 noise conditions) Relevant Australian Standards Assessment Conclusions The following conclusions apply to this assessment: The Centenary Motorway located along the northern boundary of the development has been identified to be the primary source of noise predicted to impact on the overall Ripley Valley (AMEX SUCE) development, along with Ripley Road and some of the proposed new internal roads. The primary road traffic noise sources impacting on the assessed sites for Stage 33 to 37 are Bayliss Road and the South East Arterial Road. Residential Lots within the Amex SUCE Stages 33 to 37 have been identified to be in excess of 200 metres from the Centenary Highway at the nearest point to the proposed development therefore QDC MP 4.4 criteria has not been considered applicable to this assessment. Modelling indicates that without any noise barriers Australian Standard AS3671 building Category 2 construction will be required for the ground floor of dwellings on all Lots located within Stages, 33 to 37 with the exception of 17 Lots (1812 to 1828) inclusive, which would require Category 3 construction. With a 1.8 metre barrier installed along the southern boundary of Stages 33-37 as shown in Figure 7-1, the ground floor construction requirements reduce to Category 2. The requirements of AS 3671 Category 2 and 3 construction are explained further in Section 8 and Appendix C of this report. 17 Lots (Lots 1812 to 1828) will require Category 3 construction for the upper floors if constructed with more than one level with or without a 1.8 metre high barrier installed as shown in Figure 7-1. July 2017 Cardno iii

In summary, without a barrier 17 Lots (1812 to 1828) will require Category 3 construction for both floors (if they are two storey dwellings) and with a 1.8 metre barrier, the ground floor construction requirement of these dwellings will be reduced to Category 2, and the upper floor will remain at Category 3. It is not possible to accurately predict L Amax noise levels from road traffic noise. Therefore this has not been assessed. The L Amax noise level will be dependent on traffic types proposed to use the development s internal roads. We would expect that, given the nature of the road traffic, being low speed local access traffic, the L Amax noise levels from traffic pass-bys are likely to be in accordance with other similar developments in Queensland. It is recommended that the following acoustic design principles be taken into account when considering the overall layout, building orientations and shielding affects: The building to be set back from the road as far as possible; The building to shape away from the road where possible; The building to shield courtyards and open space areas from the road; and Noise sensitive spaces, such as bedrooms, to be shielded from noise by positioning less sensitive spaces, such as the garage, bathrooms and laundry, closer to the road. Where a dwelling (refer to Table 7-3) is required to have a category 2 construction in accordance with this report, and the predicted night-time noise level is 57 db(a) or greater, the proposed design should be checked by a qualified acoustic consultant, should any lightweight facades or facades with large areas of glazing be proposed. For Lots with predicted noise levels less than 57 db(a), standard construction will be acceptable provided there are no single layer lightweight or all glass facades proposed for the dwelling, with no further acoustic review required, to satisfy the requirements of this report. Where Category 3 construction is required (refer to Table 7-3), the proposed design should be reviewed for compliance by a qualified acoustic consultant. For Category 2 construction please refer to the information included in Appendix C of this report for details of the required process to determine the level of dwelling treatment and review required. July 2017 Cardno iv

Table of Contents Executive Summary Glossary and Abbreviations iii vii 1 Development Proposal 8 2 Existing Noise Environment 9 2.1 Noise Monitoring Locations 9 3 Existing Noise Conditions 11 3.1 Environmental Monitoring Conditions 11 3.2 Equipment Calibration 11 3.3 Measurement Parameters 11 3.4 Measurement Results 11 4 Noise Assessment Criteria 17 4.1 Statutory Requirements 17 4.1.1 Development Approval (Stages 10 to 54) Condition 14, Ipswich City Council 17 4.1.2 Economic Development Queensland (formerly Urban Land Development Authority) 17 4.1.3 Queensland Development Code (QDC) MP 4.4 Buildings in A Transport Noise Corridor 18 4.1.4 Australian Standards 18 5 Design Benchmarks 20 5.1 External Road Traffic Noise 20 6 Noise Assessment Methodology 21 6.1 Modelled Scenarios 21 6.2 Noise Model Inputs & Assumptions 21 6.2.1 General Modelling Inputs 21 6.2.2 Traffic Flow Information 22 6.2.3 Additional Assumptions 23 6.3 Noise Model verification 24 7 Road Traffic Noise Impact Assessment 25 7.1 Modelled Scenarios 25 7.2 Modelled Noise Barrier 25 7.3 Predicted 2031 Traffic Noise Levels 26 7.3.1 EDQ Assessment 26 8 Recommendations 36 9 Conclusions 37 Tables Table 2-1 Summary of Monitoring Locations and Equipment Information 9 Table 3-1 Summary of Averaged Noise Levels from Noise Loggers (Centenary Highway) 16 Table 3-2 Measured Average LA10, 1hr (averaged over 7 day period) noise levels at logger locations. 16 Table 4-1 Summary of EDQ Noise Assessment Criteria 17 Table 4-2 Recommended design internal noise levels AS/NZS 2107:2000 18 Table 5-1 Summary of Adopted Road Traffic Criteria 20 July 2017 Cardno v

Table 6-1 Noise Modelling inputs 21 Table 6-2 2031 Road Traffic modelling inputs 22 Table 6-3 2012 Modelling Inputs 24 Table 6-4 Modelling Verification Results 24 Table 7-1 Modelling Summary 25 Table 7-2 LA10 to LAeq Conversion Factors for Day and Night 26 Table 7-3 EDQ, AS3671 Assessment 2031 Predicted Noise & Required Category Based on Criteria for Inside Bedrooms and Living areas of a Proposed Dwelling - with and Without Barriers 27 Figures Figure 1-1 Site Layout & Surrounding Topography Stages 33 to 37 8 Figure 2-1 Noise Logger Locations 10 Figure 3-1 Site Ambient Noise Levels logger 1 12 Figure 3-2 Site Ambient Noise Levels logger 2 12 Figure 3-3 Site Ambient Noise Levels logger 3 13 Figure 3-4 Site Ambient Noise Levels logger 4 13 Figure 3-5 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 1 14 Figure 3-6 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 2 14 Figure 3-7 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 3 15 Figure 3-8 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 4 15 Figure 6-1 24 hour ultimate traffic map of the proposed development Stages 33 to 37 23 Figure A1 2012 Existing Road Traffic Noise Contours 39 Figure A2 Stages 33 to 37 - EDQ, AS 3671 Assessment Ground Floor Noise Contours Day LAeq No Mitigation 40 Figure A3 Stages 33 to 37 - EDQ, AS 3671 Assessment First Floor Noise Contours Day LAeq No Mitigation 41 Figure A4 Stages 33 to 37 - EDQ, AS 3671 Assessment Ground Floor Noise Contours Night LAeq No Mitigation 42 Figure A5 Stages 33 to 37 - EDQ, AS 3671 Assessment First Floor Noise Contours Night LAeq No Mitigation 43 Figure A6 Stages 33 to 37 EDQ, AS 3671 Assessment Ground Floor Noise Contours Day LAeq With a 1.8 metre Barrier 44 Figure A7 Stages 33 to 37 EDQ, AS 3671 Assessment First Floor Noise Contours Day LAeq With a 1.8 metre Barrier 45 Figure A8 Stages 33 to 37 - EDQ, AS 3671 Assessment Ground Floor Noise Contours Night LAeq With a 1.8 metre Barrier 46 Figure A9 Stages 33 to 37 - EDQ, AS 3671 Assessment First Floor Noise Contours Night LAeq With a 1.8 metre Barrier 47 Figure B1 2031 Traffic Flow Data 49 Figure C1: Method to Determine the Level of Required Acoustic Treatment & Review 52 Figure D1: Typical Cross sections- Bayliss Road (stages 30 to 31) Error! Bookmark not defined. Figure D2: Modelled Cross sections Bayliss Road (Stages 30 & 31) Error! Bookmark not defined. July 2017 Cardno vi

Glossary and Abbreviations A-weighted Level As per db(a) defined below. Ambient Sound Of an environment: the all-encompassing sound associated with that environment, being a composite of sounds from many sources, near and far. Background Sound Level The average of the lowest levels of the sound levels measured in an affected area in the absence of noise from occupants and from unwanted external ambient noise sources. Decibel, db Unit of acoustic measurement. Measurements of power, pressure and intensity may be expressed in db relative to standard reference levels. L 90, L 10 etc. A statistical measurement giving the sound pressure level which is exceeded for the given percentile of an observation period, i.e. L 90 is the level which is exceeded for 90 percent of an observation period. L 90 is commonly referred to as a basis for measuring the background sound level. L Abg, T The A-weighted background sound level measured over a time interval T. L Aeq, T Equivalent continuous A-weighted sound pressure level. This is the value of the A-weighted sound pressure level of a continuous steady sound that, within a measurement time interval T, has the same A-weighted sound energy as the actual time-varying sound. RBL Rating Background Level Sound Pressure Level, Lp, db, of a sound A measurement obtained directly obtained using a microphone and sound level meter. Sound pressure level varies with distance from a source and with changes to the measuring environment. Sound pressure level equals 20 times the logarithm to the base 10 of the ratio of the rams. sound pressure to the reference sound pressure of 20 micro Pascals. Sound Power Level, Law, db of a source Sound power level is a measure of the sound energy emitted by a source, does not change with distance, and cannot be directly measured. Sound power level of a machine may vary depending on the actual operating load and is calculated from sound pressure level measurements with appropriate corrections for distance and/or environmental conditions. Sound power level is equal to 10 times the logarithm to the base 10 of the ratio of the sound power of the source to the reference sound power of 1 picosat. July 2017 Cardno vii

1 Development Proposal The AMEX SUCE Stages 33 to 37 developments are under the control of the Economic Development Queensland (EDQ) formerly the Urban Land Development Authority. Two new internal sub-arterial roads will run from north to south through Stages 26 and 27 to the west, and west to east to the north of the Stages 33-37 site, and these sites will be bounded to the south by Bayliss Road and the South East Arterial (SEA)). The sites are located remotely from the Centenary highway and other major roads impacting the Ripley Valley Site. Figure 1-1 below displays the site location of Stages 33 to 37 relative to the surrounding area. Figure 1-1 Site Layout & Surrounding Topography Stages 33 to 37 July 2017 Cardno 8

2 Existing Noise Environment The proposed site is located in a predominantly rural area on a green field site. With the exception of the Centenary Highway, the existing roads (some of which are unsealed) do not reflect, based on any natural growth factors, the future traffic flows proposed for 2031, as the majority of road traffic growth in the area will be due to the development itself. 2.1 Noise Monitoring Locations Continuous long term noise monitoring was carried out at 4 locations near the proposed site. The noise logging was carried out using 4 unmanned Iron NL21 noise loggers configured to measure 15-minute statistical noise levels between the 23 and 30 March 2012. The monitoring locations, monitoring period, equipment type and serial number used, are detailed below in Table 2-1. Table 2-1 Summary of Monitoring Locations and Equipment Information Logger Location Location Monitoring Dates Noise Logger Type & Serial Number 1 Approximately 3.5m from the Centenary Highway 23 30 April 2012 Iron NL-21 01043718 2 Approximately 4m from Ripley Road 23 30 April 2012 Iron NL-21 00365350 3 400m from Ripley Road on Bayless Road 23 30 April 2012 Iron Nl-21 00276274 4 Approximately 800m from Centenary Highways on Abrahams Road 23 30 April 2012 Iron Nl-21 00776886 Logger 1 was placed approximately 3.5 metres from the westbound carriageway of the Centenary Highway east of Ripley Road, adjacent to the northern site boundary. Logger 2 was placed approximately 4 metres from Ripley Road near the corner of Ripley Road and Barrams Road. Logger 3 and 4 were placed on Abrahams Road and Bayless Road respectively. Logger 3 and 4 were located on currently unsealed roads with little to no exposure to local traffic. Logger 3 on Bayless Road, was located approximately 400 metres from Ripley Road. Figure 2-1 below shows the location of the noise monitoring devices. Logger 4 on Abrahams Road, was located approximately 800 metres from the Centenary Highway. July 2017 Cardno 9

Figure 2-1 Noise Logger Locations Logger 1 Logger 2 Logger 4 Logger 3 July 2017 Cardno 10

3 Existing Noise Conditions 3.1 Environmental Monitoring Conditions The environmental conditions, obtained from the Amberley weather station located 13 km from the site, noted during the measurement period were as follows: Conditions: Wind: Fine Humidity: 38 83% 2 24 km/h from a WSW / ESE direction Temperature: Range between 13-30 o C 3.2 Equipment Calibration Calibration of the sound monitoring equipment was conducted before and after the measurement period, with a variance of less than + / - 0.5dB recorded. 3.3 Measurement Parameters As environmental noise varies with time, the use of statistical descriptors is necessary to understand and describe these variations. For road traffic noise these descriptors are further classified for day time (6am - midnight). For environmental noise, the assessment period for day time is further split into day (7am 6pm) and evening (6pm 10pm). A-weighted statistical levels are used to describe ambient noise levels. The common descriptors used to describe environmental noise are described as follows: L Amax: L A1: L A10: L A90: L Aeq: the A-weighted maximum noise level measured during the measurement period. the A-weighted noise level exceeded for 1% of the measurement period. the noise A-weighted level exceeded for 10% of the measurement period, generally referred to as the average maximum sound pressure level. the A-weighted noise level exceeded for 90% of the measurement period, generally referred to as the background noise level (refer AS 1055.1 1997). the equivalent continuous noise level over the measurement period, generally referred to as the energy averaged sound pressure level over the measurement period. 3.4 Measurement Results Graphical representation of the measured ambient noise levels are presented in Figure 3-1 to Figure 3-8. Figure 3-5 to Figure 3-8 detail typical 24 hour noise levels averaged over the monitoring period. July 2017 Cardno 11

Figure 3-1 Site Ambient Noise Levels logger 1 120 Logger 1 - Ambient Noise Levels Measured at Centenary Highway (east of Ripley Road), Ripley Between 23 and 30 March 2012 Sound Pressure Level, db(a) 100 80 60 40 20 0 30/03/2012 0:00 29/03/2012 12:00 29/03/2012 0:00 28/03/2012 12:00 28/03/2012 0:00 27/03/2012 12:00 27/03/2012 0:00 26/03/2012 12:00 26/03/2012 0:00 25/03/2012 12:00 25/03/2012 0:00 24/03/2012 12:00 24/03/2012 0:00 23/03/2012 12:00 Date & Time LAeq LAmax LA10 LA90 Figure 3-2 Site Ambient Noise Levels logger 2 120 Logger 2 - Ambient Noise Levels Measured at Ripley Road, Ripley Between 23 and 30 March 2012 Sound Pressure Level, db(a) 100 80 60 40 20 0 29/03/2012 23:45 29/03/2012 11:45 28/03/2012 23:45 28/03/2012 11:45 27/03/2012 23:45 27/03/2012 11:45 26/03/2012 23:45 26/03/2012 11:45 25/03/2012 23:45 25/03/2012 11:45 24/03/2012 23:45 24/03/2012 11:45 23/03/2012 23:45 23/03/2012 11:45 Date & Time LAeq LAmax LA10 LA90 July 2017 Cardno 12

Figure 3-3 Site Ambient Noise Levels logger 3 120 Logger 3 - Ambient Noise Levels Measured at Abrahams Road, Ripley Between 23 and 30 March 2012 100 Sound Pressure Level, db(a) 80 60 40 20 0 23/03/2012 12:30 24/03/2012 0:30 24/03/2012 12:30 25/03/2012 0:30 25/03/2012 12:30 26/03/2012 0:30 26/03/2012 12:30 27/03/2012 0:30 27/03/2012 12:30 28/03/2012 0:30 28/03/2012 12:30 29/03/2012 0:30 29/03/2012 12:30 30/03/2012 0:30 Date & Time LAeq LAmax LA10 LA90 Figure 3-4 Site Ambient Noise Levels logger 4 120 100 Logger 4 - Ambient Noise Levels Measured at Bayliss Road, Ripley Sound Pressure Level db(a) 80 60 40 20 0 23/03/2012 12:30 24/03/2012 0:30 24/03/2012 12:30 25/03/2012 0:30 25/03/2012 12:30 26/03/2012 0:30 26/03/2012 12:30 27/03/2012 0:30 27/03/2012 12:30 28/03/2012 0:30 28/03/2012 12:30 29/03/2012 0:30 29/03/2012 12:30 30/03/2012 0:30 Date & Time LAeq LAmax LA10 LA90 July 2017 Cardno 13

Figure 3-5 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 1 100.0 90.0 Logger 1 - Averaged Ambient Noise Levels Measured at Centenary Highway (east of Ripley Road), Ripley, Between 23 and 30 March 2012 Sound Pressure Level db(a) 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 LAeq LAmax LA10 LA90 Figure 3-6 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 2 100.0 Logger 2 - Averaged Ambient Noise Levels Measured at Ripley Road, Ripley Between 23 and 30 March 2012 90.0 Sound Pressure Level db(a) 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 LAeq LAmax LA10 LA90 July 2017 Cardno 14

Figure 3-7 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 3 100.0 Logger 3 - Averaged Ambient Noise Levels Measured at Abrahams Road, Ripley Between 23 and 30 March 2012 90.0 Sound Pressure Level db(a) 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 LAeq LAmax LA10 LA90 Figure 3-8 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 4 100.0 Logger 4 - Averaged Ambient Noise Levels Measured at Bayliss Road, Ripley Between 23 and 30 March 2012 90.0 Sound Pressure Level db(a) 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 LAeq LAmax LA10 LA90 July 2017 Cardno 15

The following tables demonstrate the measured noise levels for the daytime, evening and night-time periods at each logger location. Table 3-1 Summary of Averaged Noise Levels from Noise Loggers (Centenary Highway) Logger Location L A10, db(a) L A90. db(a) L Aeq, db(a) 7am- 6pm 6pm- 10pm 10pm- 7am 7am- 6pm 6pm- 10pm 10pm- 7am 7am- 6pm 6pm- 10pm Logger 1 (Centenary Highway) 67 63 58 43 45 39 64 61 59 Logger 2 (Ripley Road) 56 52 46 38 41 34 59 55 46 Logger 3 (Abrahams Road) 45 45 40 35 38 32 44 44 37 Logger 4 (Bayliss Road) 45 42 40 35 39 35 43 41 39 10pm- 7am Table 3-2 Measured Average LA10, 1hr (averaged over 7 day period) noise levels at logger locations. Measured LA10 1hr Noise Level,dB(A) Measured LA10 1hr Noise Level db(a) Time Period Logg er 1 Logger 2 Logger 3 Logger 4 Time Period Logg er 1 Logger 2 Logger 3 Logger 4 00:00-01:00 52 40 38 39 12:00-13:00 66 54 43 53 01:00-02:00 51 38 36 38 13:00-14:00 66 54 44 44 02:00-03:00 52 38 36 37 14:00-15:00 67 55 44 46 03:00-04:00 54 38 37 37 15:00-16:00 69 57 48 46 04:00-05:00 61 42 39 38 16:00-17:00 69 57 46 45 05:00-06:00 67 52 45 48 17:00-18:00 68 57 44 44 06:00-07:00 69 54 48 47 18:00-19:00 66 57 47 46 07:00-08:00 68 58 45 47 19:00-20:00 62 54 43 42 08:00-09:00 67 56 44 45 20:00-21:00 62 49 41 41 09:00-10:00 66 53 45 44 21:00-22:00 61 47 40 39 10:00:11:00 65 55 44 44 22:00:23:00 60 44 39 39 11:00-12:00 66 54 44 45 23:00-00:00 56 41 38 39 July 2017 Cardno 16

4 Noise Assessment Criteria Based on our understanding of the development, we have included the following in this assessment: Road traffic noise impact on the development site from proposed roads within the SUCE development Road traffic noise impact from Bayliss Road / the SEA 4.1 Statutory Requirements 4.1.1 Development Approval (Stages 10 to 54) Condition 14, Ipswich City Council The Development Application Decision Notice for Stages 10 to 54 issued by Ipswich City Council on 9 March 2015, provides the following condition with respect to noise impacting on the site: Noise Management (a) Submit to DSDIP PDA Development Assessment an updated version of the Road Traffic Noise Impact Assessment Ripley Valley Amex SUCE Development ROL Phase (Project No. A038_790147) prepared by Cardno and dated August 2013. The updated report shall include the final lot layout, terrain elevation, traffic counts along with a reduced acoustic barrier to a maximum height of 1.8 metres from finished ground level (1). The updated report must outline assessment and mitigation strategies to be considered in the construction of dwellings to meet the appropriate acoustic attenuation standards for internal noise only. The proposed barrier works must include interface works to roads, permit pedestrian access along and between road reserves and, unless otherwise approved in writing by DSDIP PDA Development Assessment, not extend for the length of any parks or drainage reserves and must include landscaping between the barrier and constructed / future roads. 4.1.2 Economic Development Queensland (formerly Urban Land Development Authority) As part of Stage 1 of the Ripley Valley development, noise impact assessment criteria was established by EDQ and as such, the criteria has been adopted for the entire project. The EDQ criteria are as follows: Table 4-1 Summary of EDQ Noise Assessment Criteria Measurement Location Inside bedrooms of a proposed dwelling house, multiple dwelling or accommodation unit. Inside living rooms of a proposed dwelling house, multiple dwelling or accommodation unit. Design Level Road Traffic Noise Criteria (a) Average LAmax (10pm-6am) not greater than 50dB(A), and (b) LAeq(1hr)(10pm-6am) not greater than 35dB(A) LAeq(1hr)(6am - 10pm) not greater than 45dB(A) July 2017 Cardno 17

4.1.3 Queensland Development Code (QDC) MP 4.4 Buildings in A Transport Noise Corridor Residential dwellings constructed near designated transport corridors (i.e. the Centenary Highway) are required to comply with Queensland Development Code Mandatory Part 4.4 - Buildings in a Transport Noise Corridor (QDC MP 4.4). QDC MP 4.4 specifies acoustic treatments based upon a noise category. Amex SUCE Stages 33 to 37 are located in excess of 200 metres of the Centenary Highway. Therefore QDC MP 4.4 criteria is not applicable to this assessment. 4.1.4 Australian Standards The following Australian Standards provide criteria and methodology that has been adopted in this assessment. Australian Standard AS1055.1:1997 Acoustics Description and measurement of environmental noise Australian Standard AS/NZS 2107:2000 Recommended design sound levels and reverberation times for building interiors. Australian Standard AS 2702:1984, Methods for the Measurement of Road Traffic Noise. Australian Standard AS3671:1989, Acoustics Road Traffic Noise Intrusion Building Siting & Construction AS/NZS 2107:2000 Table 4-2, referenced from the Australian Standard AS/NZS 2107:2000 states the following guidelines for internal sound levels in a wide range of buildings and provides internal noise guidelines for residential buildings in areas that are located near major roads. Table 4-2 Recommended design internal noise levels AS/NZS 2107:2000 Type of occupancy/activity Recommended design sound level, Leq, db(a) Satisfactory Maximum 7 RESIDENTIAL BUILDINGS Houses & apartments near major roads Living areas 35 45 Sleeping areas 30 40 Work areas 35 45 Apartment common areas (e.g. foyer, lift lobby 45 55 AS3671:1989 AS 3671 provides methods to determine the required Traffic Noise Reduction and the types of construction required to achieve this reduction. The standard references the internal design sound levels listed in AS/NZS 2107. In accordance with Clause 3.2 of AS3671, the worst case Traffic Noise Reduction (TNR) can be calculated and associated category construction adopted. The required categories are defined as follows: 3.2.1 Category 1. Standard construction; openings, including open windows and doors may comprise up to 10% of the exposed facade. TNR of approximately 10 db(a) is expected. 3.2.2 Category 2. Standard construction, except for lightweight elements, such as fibrous cement, or metal cladding, or all glass facades. Windows, doors and other openings must be closed. TNR of approximately 25 db(a) is expected. July 2017 Cardno 18

3.2.3 Category 3. Special construction, chosen in accordance with Clause 3.4. Windows, doors and other openings must be closed. TNR between 25 and 35 is expected. 3.2.4 Category 4. TNR greater than 35 db(a) is required; special acoustic advice should be sought. July 2017 Cardno 19

5 Design Benchmarks 5.1 External Road Traffic Noise Table 5-1 below, summarises the adopted criteria for this development. Table 5-1 Summary of Adopted Road Traffic Criteria Assessment Descriptor Measurement Location Criteria Reference Relevant Noise Limit, db(a) LAeq, 1hr (6am-10pm) Inside living rooms of a proposed dwelling house, multiple dwelling or accommodation unit. EDQ 45 db(a) (Internal) LAmax, (10pm-6am) LAeq, (10pm-6am) Inside bedrooms of a proposed dwelling house, multiple dwelling or accommodation unit. EDQ a) LAmax, 10pm-6am not greater than 50dB(A) b) LAeq, 10pm-6am not greater than 35dB(A) July 2017 Cardno 20

6 Noise Assessment Methodology Computer modelling has been undertaken for the development site using SoundPLAN 7.4 computer modelling software in order to assess predicted noise impact onto the development from road traffic on the Centenary Highway, and existing surrounding local roads located near to the site. The road traffic data has been used to generate a computer model for the year 2031 which has then been assessed in accordance with the relevant criteria: Existing 3D topography of the site, surrounds and nearby road and rail alignments supplied by Cardno. Proposed Site topography provided by Cardno. Road traffic flows, year 2031 Centenary Highway, and surrounding local roads. Assumed road traffic speeds, and heavy vehicles as detailed below in Table 6-2. DGA road surface on all modelled roads 6.1 Modelled Scenarios The following scenarios were modelled using SoundPLAN 7.4 computer noise modelling software. SoundPLAN 7.4 is based on Queensland Department of Main Roads (TMR) approved Calculation of Road Traffic Noise (CoRTN) algorithms: 1. Existing (2012) verification road traffic noise model, based on the modelling inputs supplied for 2010 constructed for modelling verification purposes. 2. Predicted road traffic noise model based on the modelling inputs supplied for the ultimate year 2031, with no mitigation. This model included +2.5 db(a) facade correction added, and -1.7 db(a) CoRTN correction factor for Australian Conditions added. 3. Predicted road traffic noise with a 1.8 metre high noise barrier located along the southern boundary of Stages 33 and 37 between the site and the SEA. 6.2 Noise Model Inputs & Assumptions 6.2.1 General Modelling Inputs Table 6-1 details the traffic input data used for modelling the existing scenario. Table 6-1 Noise Modelling inputs Input Parameter Ground Elevation Geometry Road Alignment Provided by Cardno Civil Provided by Cardno Civil Input Date/Source Reference Predicted Traffic Flow Data Provided by Cardno Traffic and detailed in Table 6-2. Road Traffic Speeds Road Surface Type Ground Absorption Assumed as posted for the Centenary Highway, and local roads Modelling has assumed a pavement surface of Dense Grade Asphalt indicating a correction factor of 0 db(a) (with reference to Queensland Department of Transport & Main Roads Transport Noise Management Code of Practice (TMR TNM CoP 2013) to be applied to all modelling scenarios Assumed 100% soft ground absorption surfaces between road and receivers July 2017 Cardno 21

Input Parameter Facade Reflection Correction to CoRTN for Façade Corrected Australian Conditions Receiver Height Input Date/Source Reference +2.5 db(a) applied to prediction models, as all receivers are located at facades of receiver. -1.7 db(a) CoRTN AustRoads correction for Australian conditions. Assumed to be 1.8 & 4.6 metres above ground for ground and first floors respectively as required by the TMR TNM CoP 2013. 6.2.2 Traffic Flow Information The following road traffic flow model inputs were obtained from Cardno: Table 6-2 2031 Road Traffic modelling inputs Input Date/Source Reference Input Parameter Centenary Highway Ripley Road (section north) Ripley Road (section south) Barrams Road *Various New Local Roads SUCE Traffic speed 100 km/h 80 km/h 80km/h 60 km/h 60 km/h Traffic flow: AADT 62,929 30,297 31,277 21,733 2,000-3,500 % Heavy Vehicles 8% 4% 4% 4% 4% *Figure 6-1 below, illustrates the 24 hour ultimate traffic map for Stages 33 to 37 and Appendix B presents the 2031 traffic flows for the entire development. July 2017 Cardno 22

Figure 6-1 24 hour ultimate traffic map of the proposed development Stages 33 to 37 The South East Arterial (SEA) 6.2.3 Additional Assumptions Additional modeling assumptions include the following: Noise levels have been predicted for 1st and 2nd floor receptors to allow for accommodation of 2 storey dwellings on the site. Buildings have not been included in the modelling as the locations of the dwellings are not known at time of preparation of this report. In addition, receiver points used to calculate building category requirements have been located at the closest practical point to the noise creating roads. This report therefore, without shielding provided by site dwellings, provides a conservative assessment of predicted road traffic noise impact. July 2017 Cardno 23

6.3 Noise Model Verification An existing scenario model was set up using SoundPLAN 7.4 and spot receiver calculations were run for each of the four noise monitoring locations described in section 3 of this report. A correction factor of -0.7dB(A) was applied to the modelled results in accordance with the CoRTN correction for Australian Conditions for free field measurements. The modelled results were then compared to the measured results to determine whether the model was verified. The following existing road traffic flow model inputs were obtained from Cardno Civil. Table 6-3 2012 Modelling Inputs Input Parameter Centenary Highway Ripley Road Traffic speed 100 km/h 60km/h Traffic flow: AADT 5,028 390 % Heavy Vehicles 8% 4% A comparison of the modelled and measured values is shown below in Table 6-4. Table 6-4 Modelling Verification Results Logger Location Predicted, L A10 18hr db(a) Measured, L A10 18hr db(a) Difference, db(a) Logger 1 Centenary Highway 65.2 65.1 +0.1 Logger 2 Ripley Road 51.4 53.1-1.7 Logger 3 Bayliss Road 37.6 43.6 +6.0 (1) Logger 4 Abrahams Road 42.9 44.3 +1.4 (1) The measured level at logger 3 on Bayliss Road was 6 db(a) higher than the predicted level at the same location within the model. Bayliss Road is an unsealed road used to access a small number of rural properties. Traffic flows for this type of road were unavailable at the time of preparation of this report. It may be possible that the higher measured noise level at this location may be due to local traffic on Bayliss Road or other non-traffic related noise sources. Review of the noise charts indicates continuous short terms high level noise spikes. This type of noise is generally caused by crows or insects. Abrahams Road (logger 4) is also an unsealed road however the fact that it is closer to the Centenary Highway, which therefore provides a higher noise contribution, as well as its lack of access to local properties, may account for the increased accuracy of the modelled result, when compared to those measured. The same noise profile indicating possible high levels of insect and/ or crow noise do not appear to occur at this site. July 2017 Cardno 24

7 Road Traffic Noise Impact Assessment 7.1 Modelled Scenarios Ultimate 2031 traffic noise predictions were modelled using the verified SoundPLAN 7.4 computer noise model for 1 and 2 storey receivers. Detailed noise contour maps were produced in order to identify road traffic noise affected lots based on relevant assessment criteria. Lots deemed to exceed the assessment criteria were further reviewed in order to investigate appropriate mitigation measures to control noise exceedance. Amex SUCE Stages 33 to 37 have been identified to be in excess of 200 metres from the Centenary Highway therefore these lots have been assessed against the EDQ criteria. For assessment against EDQ criteria, road traffic noise has been assessed against the most stringent EDQ internal night-time criteria of L Aeq, (10pm-6am) not greater than 35 db(a), for both ground and first floors to provide a conservative assessment. A summary of the modelling is detailed as follows: Table 7-1 Modelled Scenario Modelling Summary Year Floor Assessment Criteria Basis Description 1 2012 - - Existing road traffic noise contours (extrapolated from 2010 road traffic flow data). 2 2031 Ground EDQ / AS3671 Predicted road traffic noise contours for inside bedrooms and living areas of a proposed dwelling with no mitigation (Stages 33 to 37) 3 2031 First EDQ / AS3671 Predicted road traffic noise contours for inside bedrooms and living areas of a proposed dwelling with no mitigation (Stages 33 to 37) 4 2031 Ground EDQ / AS3671 Predicted road traffic noise impact for inside bedrooms and living areas of proposed dwellings with a 1.8m high barrier (along the southern boundary of Stages 33 to 37 5 2031 First EDQ / AS3671 Predicted road traffic noise impact for inside bedrooms and living areas of proposed dwellings with a 1.8m high barrier (along the southern boundary of Stages 33 to 37 7.2 Modelled Noise Barrier A road traffic noise barrier located as shown in Figure 7-1 has been included in the modelling to the south of the Stages 33 to 37 site along the site boundary with the SEA, at 1.8 metres high. Barriers have not been modelled or designed elsewhere for internal roads within the site, as we understand that a barrier is not in accordance with the planning intent for internal roads within this development. Therefore building treatments are recommended for the affected Lots, and formal external living spaces (such as patios or balconies) are recommended to be located at opposite façade to those where external living space criteria is exceeded due to exposure to road traffic noise. July 2017 Cardno 25

Figure 7-1 Location of Modelled Noise Barrier Stages 33 to 37 Noise Barrier 7.3 Predicted 2031 Traffic Noise Levels 7.3.1 EDQ Assessment CoRTN Modelling algorithms such as those used in SoundPLAN predict a L A10,18hr road traffic noise level rather than the required L Aeq,18hr and L Aeq,1hr noise level specified in the EDQ criteria. To determine the predicted daytime L Aeq noise levels for assessment the EDQ criteria, a correction factor of -3 db(a) was applied in accordance with the requirements of AS 3671. There is no statutory recommended correction factor to convert L A10,18hr to L Aeq, 8hr (10pm to 6am). However, review of the logger data located nearest to the Centenary Highway indicates a 7 db(a) difference between this parameter and the L A10, 18hr for the existing scenario. Therefore the following correction factors were applied to the modelling to determine L Aeq values. Table 7-2 LA10 to LAeq Conversion Factors for Day and Night Time Period Year Basis (Day) 6 am to 10pm r = LA10,18hr 3 db(a) Recommended in AS 3671 (Night) 10pm to 6 am LAeq,8hr = LA10,18hr 7 db(a) Review of current logger data The results of noise modelling are displayed below in Table 7-3. July 2017 Cardno 26

Table 7-3 EDQ, AS3671 Assessment 2031 Predicted Noise & Required Category Based on Criteria for Inside Bedrooms and Living areas of a Proposed Dwelling - With and Without a 1.8 metre high Barriers Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier LA10, 18h Day Night AS:3671 Category Required Predicted External Road Traffic Noise Level With 1.8 Barrier LA10, 18h Day Night AS:3671 Category Required Stage 33 to 37 1412 85.2 Ground 54 52 48 2 54 51 47 2 First 55 53 49 2 55 53 49 2 1413 85.5 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1414 85.4 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1415 85.2 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1416 84.9 Ground 54 52 48 2 54 51 47 2 First 55 53 49 2 55 53 49 2 1417 84.7 Ground 54 52 48 2 54 51 47 2 First 55 53 49 2 55 53 49 2 1418 84.5 Ground 54 51 47 2 54 51 47 2 First 55 53 49 2 55 53 49 2 1419 84.3 Ground 53 51 47 2 53 51 47 2 First 55 53 49 2 55 53 49 2 1420 83.3 Ground 53 51 47 2 53 51 47 2 First 55 53 49 2 55 52 48 2 1421 82.4 Ground 53 51 47 2 53 51 47 2 First 55 52 48 2 54 52 48 2 1422 81.5 Ground 53 51 47 2 53 51 47 2 1423 80.5 Ground 53 51 47 2 53 51 47 2 1424 79.6 Ground 53 51 47 2 53 51 47 2 1425 78.9 Ground 53 51 47 2 53 50 46 2 1426 78.4 Ground 53 51 47 2 53 51 47 2 1427 77.9 Ground 53 51 47 2 53 51 47 2 1428 77.6 Ground 53 51 47 2 53 51 47 2 1429 77.4 Ground 53 51 47 2 53 51 47 2 1430 77.2 Ground 53 51 47 2 53 51 47 2 1431 77.1 Ground 53 51 47 2 53 51 47 2 July 2017 Cardno 27

Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier LA10, 18h Day Night AS:3671 Category Required Predicted External Road Traffic Noise Level With 1.8 Barrier LA10, 18h Day Night AS:3671 Category Required 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1655 1656 77.0 Ground 53 51 47 2 54 51 47 2 First 54 52 48 2 55 52 48 2 76.9 Ground 54 51 47 2 53 51 47 2 First 55 52 48 2 55 52 48 2 78.7 Ground 53 51 47 2 53 51 47 2 78.9 Ground 53 51 47 2 53 51 47 2 79.0 Ground 53 51 47 2 53 51 47 2 79.1 Ground 53 51 47 2 53 51 47 2 79.8 Ground 53 51 47 2 53 51 47 2 80.1 Ground 53 51 47 2 53 51 47 2 80.7 Ground 53 51 47 2 53 51 47 2 81.6 Ground 53 51 47 2 53 51 47 2 82.5 Ground 53 51 47 2 53 51 47 2 84.9 Ground 54 51 47 2 53 51 47 2 First 55 52 48 2 54 52 48 2 71.4 Ground 54 52 48 2 54 51 47 2 First 55 53 49 2 55 53 49 2 72.8 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 74.1 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 76.8 Ground 56 54 50 2 56 54 50 2 First 58 55 51 2 57 55 51 2 76.7 Ground 56 54 50 2 56 54 50 2 First 57 55 51 2 57 55 51 2 78.1 Ground 56 54 50 2 56 54 50 2 1657 First 57 55 51 2 57 55 51 2 1658 78.2 Ground 56 53 49 2 55 53 49 2 1659 77.8 First 57 54 50 2 57 54 50 2 Ground 55 53 49 2 55 53 49 2 First 56 54 50 2 56 54 50 2 1660 Ground 55 53 49 2 55 53 49 2 July 2017 Cardno 28

Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier LA10, 18h Day Night AS:3671 Category Required Predicted External Road Traffic Noise Level With 1.8 Barrier LA10, 18h Day Night AS:3671 Category Required 78.1 First 56 54 50 2 56 54 50 2 1666 76.9 Ground 55 52 48 2 54 51 47 2 First 55 53 49 2 55 52 48 2 1667 76.8 Ground 55 52 48 2 54 51 47 2 First 55 53 49 2 55 52 48 2 1668 78.3 Ground 54 52 48 2 54 51 47 2 First 55 53 49 2 55 52 48 2 1669 75.0 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1670 74.4 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1671 73.1 Ground 55 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1672 74.4 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1673 75.0 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1674 76.9 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1675 78.6 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1676 79.1 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1677 79.4 Ground 54 52 48 2 54 51 47 2 First 55 52 48 2 55 52 48 2 1678 80.8 Ground 56 54 50 2 56 54 50 2 First 57 55 51 2 57 55 51 2 1679 81.3 Ground 56 54 50 2 56 54 50 2 First 57 55 51 2 57 55 51 2 1680 82.7 Ground 55 53 49 2 55 53 49 2 First 57 54 50 2 56 54 50 2 1681 88.9 Ground 55 53 49 2 55 53 49 2 First 56 54 50 2 56 54 50 2 1682 89.9 Ground 55 52 48 2 54 52 48 2 First 56 54 50 2 56 54 50 2 1683 90.6 Ground 55 53 49 2 55 52 48 2 First 56 54 50 2 56 54 50 2 1684 92.5 Ground 55 53 49 2 55 53 49 2 First 56 54 50 2 56 54 50 2 1685 93.0 Ground 55 53 49 2 55 53 49 2 First 56 54 50 2 56 54 50 2 1686 Ground 55 53 49 2 55 53 49 2 July 2017 Cardno 29

Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier LA10, 18h Day Night AS:3671 Category Required Predicted External Road Traffic Noise Level With 1.8 Barrier LA10, 18h Day Night AS:3671 Category Required 93.3 First 57 54 50 2 57 54 50 2 1687 89.2 Ground 56 54 50 2 56 54 50 2 First 57 55 51 2 57 55 51 2 1688 84.7 Ground 56 54 50 2 56 54 50 2 First 57 55 51 2 57 55 51 2 1689 86.4 Ground 55 53 49 2 55 53 49 2 First 57 55 51 2 57 55 51 2 1690 85.1 Ground 55 53 49 2 55 53 49 2 First 57 55 51 2 57 55 51 2 1691 84.5 Ground 55 53 49 2 55 53 49 2 First 57 55 51 2 57 55 51 2 1692 83.6 Ground 56 53 49 2 56 53 49 2 First 57 55 51 2 57 55 51 2 1693 88.2 Ground 56 54 50 2 56 53 49 2 First 58 56 52 2 58 55 51 2 1694 87.4 Ground 57 54 50 2 56 54 50 2 First 58 56 52 2 58 56 52 2 1695 86.4 Ground 57 55 51 2 57 54 50 2 First 58 56 52 2 58 56 52 2 1696 81.4 Ground 57 55 51 2 57 54 50 2 First 58 56 52 2 58 56 52 2 1697 79.9 Ground 57 55 51 2 57 54 50 2 First 58 56 52 2 58 56 52 2 1698 80.2 Ground 57 55 51 2 57 54 50 2 First 59 56 52 2 58 56 52 2 1699 80.4 Ground 57 55 51 2 57 53 49 2 First 59 57 53 2 59 56 52 2 1700 81.5 Ground 58 56 52 2 58 53 49 2 First 59 57 53 2 59 57 53 2 1808 81.8 Ground 58 55 51 2 57 55 51 2 First 59 57 53 2 59 57 53 2 1809 86.2 Ground 58 56 52 2 58 55 51 2 First 60 58 54 2 59 57 53 2 1810 87.7 Ground 58 56 52 2 58 56 52 2 First 60 58 54 2 60 58 54 2 1811 88.9 Ground 58 56 52 2 58 55 51 2 First 61 59 55 2 60 58 54 2 1812 83.1 Ground 66 64 60 3 56 55 51 2 First 69 67 63 3 65 63 59 2 1813 82.5 Ground 66 64 61 3 58 57 53 2 First 70 67 63 3 67 64 60 3 1814 81.7 Ground 66 64 60 3 58 57 53 2 July 2017 Cardno 30

Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier LA10, 18h Day Night AS:3671 Category Required Predicted External Road Traffic Noise Level With 1.8 Barrier LA10, 18h Day Night AS:3671 Category Required 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 First 69 67 63 3 67 64 60 3 79.1 Ground 66 64 60 3 58 57 53 2 First 70 67 63 3 68 65 61 3 79.9 Ground 66 64 60 3 58 57 53 2 First 70 68 64 3 68 65 61 3 79.8 Ground 66 64 60 3 59 57 53 2 First 70 68 64 3 68 65 61 3 83.8 Ground 70 68 64 3 58 57 53 2 First 70 68 64 3 68 65 61 3 92.3 Ground 70 68 64 3 58 57 53 2 First 70 68 64 3 68 64 60 3 91.7 Ground 70 68 64 3 58 56 52 2 First 70 68 64 3 68 64 60 3 86.8 Ground 70 68 64 3 58 57 53 2 First 70 68 64 3 68 65 61 3 85.4 Ground 70 68 64 3 58 57 53 2 First 70 68 64 3 68 64 60 3 83.9 Ground 66 64 60 3 59 57 53 2 First 70 68 64 3 68 64 60 3 84.0 Ground 66 64 60 3 60 58 54 2 First 71 69 65 3 69 65 61 3 84.8 Ground 66 64 60 3 60 58 54 2 First 72 69 65 3 69 65 61 3 86.9 Ground 66 64 60 3 60 58 54 2 1826 First 72 69 65 3 69 65 61 3 1827 90.9 Ground 66 64 60 3 62 59 55 2 First 72 69 65 3 69 66 62 3 1828 91.1 Ground 66 64 60 3 60 57 53 2 First 71 69 65 3 69 65 61 3 1829 91.5 Ground 59 57 55 2 58 56 52 2 First 61 59 55 2 60 57 53 2 1830 89.9 Ground 59 56 52 2 58 55 51 2 First 60 58 54 2 59 57 53 2 1831 89.7 Ground 58 56 52 2 57 55 51 2 First 60 58 54 2 59 57 53 2 1832 89.2 Ground 58 56 52 2 57 54 50 2 1833 1834 First 60 58 54 2 59 56 52 2 85.3 Ground 55 52 48 2 54 52 48 2 First 57 55 51 2 57 55 51 2 85.3 Ground 55 53 49 2 55 53 49 2 First 57 55 51 2 57 55 51 2 1835 85.2 Ground 56 54 50 2 56 54 50 2 July 2017 Cardno 31

Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier LA10, 18h Day Night AS:3671 Category Required Predicted External Road Traffic Noise Level With 1.8 Barrier LA10, 18h Day Night AS:3671 Category Required First 58 56 52 2 58 55 51 2 1836 85.5 Ground 56 54 50 2 56 54 50 2 First 58 56 52 2 58 56 52 2 1837 85.4 Ground 56 54 50 2 56 54 50 2 First 59 56 52 2 58 56 52 2 1838 85.2 Ground 57 54 50 2 56 53 49 2 First 59 57 53 2 58 56 52 2 1839 84.9 Ground 56 54 50 2 55 53 49 2 First 58 56 52 2 57 55 51 2 1840 84.7 Ground 56 53 49 2 55 53 49 2 First 57 55 51 2 57 54 50 2 1841 84.5 Ground 55 53 49 2 55 52 48 2 First 57 54 50 2 56 54 50 2 1842 84.3 Ground 55 53 49 2 54 52 48 2 First 56 54 50 2 56 53 49 2 1843 83.3 Ground 54 52 48 2 54 52 48 2 First 56 53 49 2 55 53 49 2 1844 82.4 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1845 81.5 Ground 54 51 47 2 53 51 47 2 First 55 53 49 2 55 52 48 2 1846 80.5 Ground 53 51 47 2 53 51 47 2 First 55 52 48 2 54 52 48 2 1847 79.6 Ground 53 51 47 2 53 51 47 2 1848 78.9 Ground 53 51 47 2 53 50 46 2 1849 78.4 Ground 53 51 47 2 53 50 46 2 1850 77.9 Ground 53 51 47 2 53 50 46 2 1851 77.6 Ground 53 51 47 2 53 50 46 2 1852 77.4 Ground 53 51 47 2 53 50 46 2 1853 77.2 Ground 53 51 47 2 53 51 47 2 1854 77.1 Ground 53 51 47 2 53 51 47 2 1855 77.0 Ground 53 51 47 2 53 51 47 2 1857 78.7 Ground 54 52 48 2 54 51 47 2 July 2017 Cardno 32

Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier LA10, 18h Day Night AS:3671 Category Required Predicted External Road Traffic Noise Level With 1.8 Barrier LA10, 18h Day Night AS:3671 Category Required First 55 53 49 2 55 52 48 2 1858 78.9 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1859 79.0 Ground 55 53 49 2 55 52 48 2 First 56 54 50 2 56 53 49 2 1860 79.1 Ground 55 53 49 2 55 53 49 2 First 57 54 50 2 56 54 50 2 1861 79.8 Ground 56 54 50 2 55 53 49 2 First 57 55 51 2 57 54 50 2 1862 80.1 Ground 57 54 50 2 56 53 49 2 First 58 56 52 2 57 55 51 2 1863 81.6 Ground 57 55 51 2 56 54 50 2 First 59 57 53 2 58 56 52 2 1864 82.5 Ground 55 53 49 2 55 53 49 2 First 56 54 50 2 56 54 50 2 1865 84.9 Ground 56 53 49 2 55 53 49 2 First 57 54 50 2 56 54 50 2 1866 71.4 Ground 56 54 50 2 55 53 49 2 First 57 55 51 2 57 54 50 2 1867 72.8 Ground 56 54 50 2 56 54 50 2 First 57 55 51 2 57 55 51 2 1868 74.1 Ground 57 54 50 2 57 54 50 2 First 58 56 52 2 58 55 51 2 1869 76.8 Ground 55 53 49 2 55 53 49 2 First 57 55 51 2 57 55 51 2 1870 76.7 Ground 55 53 49 2 55 53 49 2 First 57 54 50 2 57 54 50 2 1871 78.1 Ground 55 53 49 2 55 53 49 2 First 56 54 50 2 56 54 50 2 1872 78.2 Ground 55 53 49 2 55 52 48 2 First 56 54 50 2 56 54 50 2 1873 78.3 Ground 54 52 48 2 54 52 48 2 First 56 53 49 2 56 53 49 2 1874 77.8 Ground 54 51 47 2 53 51 47 2 First 55 53 49 2 55 53 49 2 1875 78.1 Ground 55 53 49 2 55 53 49 2 First 56 54 50 2 56 54 50 2 1876 78.3 Ground 55 53 49 2 55 52 48 2 First 56 54 50 2 56 54 50 2 1877 75.0 Ground 57 55 51 2 56 54 50 2 First 60 57 53 2 58 56 52 2 1878 Ground 56 54 50 2 56 53 49 2 July 2017 Cardno 33

Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier LA10, 18h Day Night AS:3671 Category Required Predicted External Road Traffic Noise Level With 1.8 Barrier LA10, 18h Day Night AS:3671 Category Required 74.4 First 58 56 52 2 57 55 51 2 1879 73.1 Ground 56 53 49 2 55 53 49 2 First 57 55 51 2 56 54 50 2 1880 74.4 Ground 55 53 49 2 54 52 48 2 First 56 54 50 2 56 54 50 2 1881 75.0 Ground 54 52 48 2 54 52 48 2 First 56 53 49 2 55 53 49 2 1882 76.9 Ground 54 52 48 2 53 51 47 2 First 55 53 49 2 55 53 49 2 1883 78.6 Ground 53 51 47 2 53 51 47 2 First 55 53 49 2 54 52 48 2 1884 79.1 Ground 53 51 47 2 53 51 47 2 1885 79.4 Ground 53 50 46 2 53 50 46 2 First 54 52 48 2 54 51 47 2 1886 80.8 Ground 53 51 47 2 53 50 46 2 1887 81.3 Ground 53 51 47 2 53 51 47 2 1888 82.7 Ground 53 51 47 2 53 51 47 2 1889 88.9 Ground 53 51 47 2 53 51 47 2 First 55 52 48 2 54 52 48 2 1890 89.9 Ground 54 52 48 2 54 52 48 2 First 55 53 49 2 55 53 49 2 1891 90.6 Ground 55 52 48 2 54 52 48 2 First 56 53 49 2 55 53 49 2 1892 92.5 Ground 55 53 49 2 54 52 48 2 First 56 54 50 2 56 53 49 2 1893 93.0 Ground 55 53 49 2 55 52 48 2 First 56 54 50 2 56 54 50 2 1894 93.3 Ground 56 53 49 2 55 53 49 2 First 57 55 51 2 57 54 50 2 1895 89.2 Ground 56 54 50 2 55 53 49 2 First 58 55 51 2 57 55 51 2 1896 84.7 Ground 56 54 50 2 56 54 50 2 First 58 56 52 2 58 56 52 2 1897 86.4 Ground 57 55 51 2 56 54 50 2 First 60 58 54 2 59 57 53 2 1898 85.1 Ground 58 56 52 2 57 55 51 2 First 61 59 55 2 60 58 54 2 1899 Ground 57 54 50 2 56 54 50 2 July 2017 Cardno 34

8 Recommendations To ensure internal noise levels within habitable rooms of future dwellings, comply with the internal design benchmarks (Section 5), future dwellings in Stages 33 to 37 should be designed and constructed in accordance with Australian Standard AS 3671:1989 Acoustics-Road Traffic Noise Intrusion-Building Siting and Construction. Future dwellings on all lots will need to be designed and constructed to Category 2 & 3 requirements which are detailed as follows: 3.2.2 Category 2. Standard construction, except for lightweight elements, such as fibrous cement, or metal cladding, or all glass facades. Windows, doors and other openings must be closed. TNR of approximately 25 db(a) is expected. 3.2.3 Category 3. Special construction, chosen in accordance with the methodology described in Clause 3.4 (of AS3671:1989). Windows, doors and other openings must be closed. TNR between 25 and 35 is expected. Further clarification of the acoustic treatment and review process required for each Lot is detailed in Appendix C. In the absence of noise barriers, all ground floor Lots will require AS3671 Category 2 construction whilst 17 lots (Lots 1812 to 1828) will require Category 3 construction for the first floor. If a 1.8 metre barrier is provided along the southern boundary of Stages 33 to 37, as shown in Figure 7.1, it will reduce the number of required Category 3 first floor receivers to 14 (1813, 1815 1821, 1823 to 1828 ). Ground floor Lots would still require Category 2 construction with the provision of a 1.8 metre noise barrier along the southern boundary of Stages 33 to 37. It should be noted that external windows and doors will need to be closed for predicted internal noise levels to comply with the design benchmarks. July 2017 Cardno 36

9 Conclusions This report assesses the predicted road traffic noise, from the Centenary Highway, SEA and other nearby local roads impacting on the proposed Ripley Valley (AMEX SUCE) development, for Stages 33 to 37. The proposed Ripley Valley (AMEX SUCE) development, Stages 33 to 37 are located within largely undeveloped future residential area of Ripley with low existing noise levels. The South East Arterial Road is the dominant traffic noise source in the area. The following conclusions apply to this assessment: The Centenary Motorway located along the northern boundary of the development has been identified to be the primary source of noise predicted to impact on the overall Ripley Valley (AMEX SUCE) development, along with Ripley Road and some of the proposed new internal roads. The primary road traffic noise sources impacting on the assessed sites for Stage 33 to 37 are Bayliss Road and the South East Arterial Road. Residential Lots within the Amex SUCE Stages 33 to 37 have been identified to be in excess of 200 metres from the Centenary Highway at the nearest point to the proposed development therefore QDC MP 4.4 criteria has not been considered applicable to this assessment. Modelling indicates that without any noise barriers Australian Standard AS3671 building Category 2 construction will be required for the ground floor of dwellings on all Lots located within Stages, 33 to 37 with the exception of 17 Lots (1812 to 1828) inclusive, which would require Category 3 construction. With a 1.8 metre barrier installed along the southern boundary of Stages 33-37 as shown in Figure 7-1, the ground floor construction requirements reduce to Category 2. The requirements of AS 3671 Category 2 and 3 construction are explained further in Section 8 and Appendix C of this report. 17 Lots (Lots 1812 to 1828) will require Category 3 construction for the upper floors if constructed with more than one level with or without a 1.8 metre high barrier installed as shown in Figure 7-1. In summary, without a barrier 17 Lots (1812 to 1828) will require Category 3 construction for both floors (if they are two storey dwellings) and with a 1.8 metre barrier, the ground floor construction requirement of these dwellings will be reduced to Category 2, and the upper floor will remain at Category 3. It is not possible to accurately predict L Amax noise levels from road traffic noise. Therefore this has not been assessed. L Amax noise level will be dependent on traffic types proposed to use the development s internal roads. We would expect that given the nature of the road traffic, being low speed local access traffic, the L Amax noise levels from traffic pass-bys are likely to be in accordance with other similar developments in Queensland. July 2017 Cardno 37

Ripley Valley Amex SUCE Development Stages 33-37 ROL Phase APPENDIX A NOISE CONTOUR MAPS July 2017 Cardno 38

Figure A1 2012 Existing Road Traffic Noise Contours July 2017 Cardno 39

Figure A2 Stages 33 to 37 - EDQ, AS 3671 Assessment Ground Floor Noise Contours Day LAeq No Mitigation July 2017 Cardno 40

Figure A3 Stages 33 to 37 - EDQ, AS 3671 Assessment First Floor Noise Contours Day LAeq No Mitigation July 2017 Cardno 41

Road Traffic Noise Impact Assessment - Draft Figure A4 July 2017 Stages 33 to 37 - EDQ, AS 3671 Assessment Ground Floor Noise Contours Night LAeq No Mitigation Cardno 42

Road Traffic Noise Impact Assessment - Draft Figure A5 July 2017 Stages 33 to 37 - EDQ, AS 3671 Assessment First Floor Noise Contours Night LAeq No Mitigation Cardno 43

Figure A6 Stages 33 to 37 EDQ, AS 3671 Assessment Ground Floor Noise Contours Day LAeq With a 1.8 metre Barrier July 2017 Cardno 44

Figure A7 Stages 33 to 37 EDQ, AS 3671 Assessment First Floor Noise Contours Day LAeq With a 1.8 metre Barrier July 2017 Cardno 45