Contact: Julie McDonagh. Thursday, 10 September Amex Corporation Level 1, 56 Boundary Street PO Box 3790 South Brisbane QLD 4101

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1 Our Ref pl_a038_790147_stage 8_13_14 category 2_Rev1.docx Contact: Julie McDonagh Thursday, 10 September 2015 Amex Corporation Level 1, 56 Boundary Street PO Box 3790 South Brisbane QLD 4101 Attention: Doug Lukin Dear Doug, RIPLEY VALLEY, SECONDARY URBAN CENTRE EAST, AS 3671 CATEGORY 2 CONSTRUCTION REQUIREMENTS STAGES 8A, 13 & 14 Cardno (Qld) Pty Ltd ABN Level St Paul s Terrace Fortitude Valley QLD 4064 Australia Locked Bag 4006 Fortitude Valley QLD 4006 Australia Phone: Fax: Further to our conversation earlier today, we provide the following information: Most Lots within Stages 8a, 13 and 14 require Category 2 construction in accordance with the requirements of Australian Standard AS3671:1989, Acoustics Road Traffic Noise Intrusion Building Siting & Construction. This is not the same as Category 2 construction in accordance with Queensland Development Code Mandatory Part 4.4 (QDC MP4.4) which applies to a small section at the northern end of Stage 14 only which is impacted by the Centenary Highway, which is a state controlled road in a designated transport corridor. Lots Within the Transport Corridor For building construction requirements for Stage 14 Lots affected by the Centenary Highway (refer to the acoustic report to confirm this requirement), referral to Queensland Development Code MP4.4 is required. This document along with details in the acoustic report, provides the required acoustic ratings for the building envelope elements (walls, glazing roof construction etc.) for dwellings to be located on these Lots. Lots Outside the Transport Corridor Subject to AS3671 AS 3671 requires the following noise reduction performance and building construction, but does not specify building materials that will comply with a category 2 construction 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. However, AS 3671 Category 2 requires a building envelope noise reduction performance of 25 db(a), and QDC MP4.4 category 1 also requires a building envelope noise reduction of 25 db(a). Belgium Brussels Indonesia Jakarta Kenya Nairobi New Zealand Auckland Christchurch Wellington Papua New Guinea Port Moresby Sri Lanka Colombo United Arab Emirates Abu Dhabi United Kingdom London United States of America Portland Washington Phoenix Sacramento Boise Las Vegas Charlotte pl_a038_790147_stage 8_13_14 category 2_Rev1.docx

2 A038_ September 2015 For this reason we believe that the requirements of QDC MP4.4 for category 1 in terms of minimum building construction performance are equivalent to that of AS 3671 category 2 requirements. A summary of the QDC MP4.4 Category 1 Requirements are as follows: Noise Category Minimum transport noise reduction (db(a)) required for habitable rooms Category 1 25 Component of building external envelope Minimum Rw required for each component 27 (where total area of glazing for a habitable room is greater than Glazing 1.8m 2 ) 24 (where total area of glazing for a habitable room is less than 1.8m 2 ) External Walls 35 Roof 35 Entry Doors 28 For Lots where AS3671 category 2 is required, in our experience, as long as the requirements of AS3671 category 2 construction as described above, are being met in terms of noise reduction, specific review of each dwelling by an acoustic consultant would not generally be required to confirm compliance. Please note that the above advice refers to AS 3671 category 2 construction only. This advice does not apply to Lots where AS 3671 category 3 construction and above are required, where the proposed material and building construction would require specific review by an acoustic consultant to determine compliance. We trust that the above is constructive. Please do not hesitate to contact the undersigned if you require further information. Yours sincerely Julie McDonagh Manager Acoustics for Cardno pl_a038_790147_stage 8_13_14 category 2_Rev1.docx

3 Road Traffic Traffic Noise Noise Impact Impact Assessment Assessment Ripley Valley Amex SUCE Development Stages 8A, 13 & 14 ROL Phase Ripley Valley Amex SUCE Development Stages 8A, 13 & 14 ROL Phase A038_ Prepared for AMEX Corporation March 2015

4 Document Information Prepared for AMEX Corporation Project Name File Reference PR_A038_310315_02LM.docm Job Reference A038_ Date March 2015 Contact Information Cardno QLD Pty Ltd Trading as Cardno ABN L11 Green Square North Tower 515 St Pauls Terrace Fortitude Valley QLD 4006 Telephone: Facsimile: International: paul.lonard@cardno.com.au julie.mcdonagh@cardno.com.au Document Control Version Date Author Author Initials Reviewer Draft 01 24/03/2015 Liam McDonagh LM Julie McDonagh JM Draft 02 31/3/15 Liam McDonagh LM Julie McDonagh JM Reviewer Initials Cardno 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. March 2015 Cardno ii

5 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 8a, 13 and 14. 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. The centre of lot spot heights, are tabulated in the results section (Section 7.3). 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: Economic Development Queensland (EDQ) (Ripley Valley SUCE stage 1 noise conditions) Queensland Development Code Mandatory Part Buildings in a Transport Noise Corridor (QDC, MP 4.4) Relevant Australian Standards Assessment Conclusions The following conclusions apply to this assessment: Centenary Motorway along the northern boundary of Stage 14 of the development has been identified to be the primary source of noise predicted to impact on Ripley Valley (AMEX SUCE) development, Stage 14. For stages 8, 13 and 14 the primary source of noise was road traffic from both the highway and local internal roads. Residential Lots within the Amex SUCE Stages 8a, 13 and 14 (south) 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 Stages 8a, 13 and 14 (south)of this development. However, some Lots located in Stage 14 (north) are located within 200 metres of the Highway, and as such have been assessed against QDC MP4.4 criteria. QDC Assessment Stage 14 (North) The previous DA Assessment for Stages indicated that a 3 metre noise barrier along the northern boundary of the site provided some benefit to the ground floors of receivers located to the north of Stage 14. The subsequent development approval condition 14 required that this barrier be reduced in height to 1.8 metres. Therefore this report reflects a 1.8 metre high noise barrier ion this location. For Stage 14 Modelling indicates that a 1.8 metre noise wall located along the northern boundary of stage 14 (north) provides some noise reduction for ground floor noise levels at 4 residential lots. In addition, QDC MP 4.4 specifies acoustic building treatments based upon a noise category, determined from the predicted noise March 2015 Cardno iii

6 level at the building facade. A 1.8 metre barrier reduces the acoustic treatment requirements at ground level for these 4 lots from a category two to a category one. Furthermore, acoustic design principles should be taken into account during the final stage when considering the overall layout and building orientations and shielding affects. Some principles to consider are listed below. The building to be set back from the transport corridor as far as possible; The building to shape away from the transport corridor; The building to shield courtyards and open space areas from the corridor; 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 corridor. EDQ Assessment Stage 8A, 13 & 14 (South) Modelling indicates that with no additional barriers in place EDQ, AS3671 standard building category 2 constructions will be required for all other Lots located outside of the transport noise corridor. It is not possible to accurately predict L Amax noise levels from road traffic noise. Therefore this has not been assessed. LAmax 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. Without a barrier, road traffic noise levels are predicted to exceed the external formal entertainment space criteria at the first floor level of 3 Lots by up to 1 db(a). However, we understand that a barrier is not in accordance with the planning intent for internal roads within this development, therefore formal external living spaces (such as balconies) should be located on the southern side of the dwellings or with no clear line of sight to the main local road to the south of Stage 8A. March 2015 Cardno iv

7 Table of Contents Executive Summary Glossary and Abbreviations 1 Development Proposal 8 2 Existing Noise Environment Noise Monitoring Locations 9 3 Existing Noise Conditions Environmental Monitoring Conditions Equipment Calibration Measurement Parameters Measurement Results 11 4 Noise Assessment Criteria Statutory Requirements Economic Development Queensland (formerly Urban Land Development Authority) Queensland Development Code (QDC) MP 4.4 Buildings In A Transport Noise Corridor Australian Standards 19 5 Design Benchmarks External Road Traffic Noise 21 6 Noise Assessment Methodology Modelled Scenarios Noise Model Inputs & Assumptions General Modelling Inputs Traffic Flow Information Additional Assumptions Noise Model verification Modelled scenarios Predicted 2031 Traffic Noise Levels (Scenarios 2 and 3) External Formal Living Space Assessment (Scenario 4) 33 8 Recommendations Building Envelope Design Private Recreation Areas 38 9 Conclusions 39 iii vii 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 L A10, 1hr (averaged over 7 day period) noise levels at logger locations. 16 Table 4-1 Summary of EDQ Noise Assessment Criteria 17 Table 4-4 Recommended design internal noise levels AS/NZS 2107: Table 5-1 Summary of Adopted Road Traffic Criteria 21 March 2015 Cardno v

8 Table 6-1 Noise Modelling inputs 22 Table Road Traffic modelling inputs 23 Table Modelling Inputs 25 Table 6-4 Modelling Verification Results 25 Table 7-1 Modelling Summary 26 Table 7-2 EDQ, AS3671 Assessment 2031 Predicted Noise & Required Category Based on Criteria for Inside Bedrooms and Living areas of a Proposed Dwelling 28 Table 7-3 EDQ External formal Living Space 33 Figures Figure 1-1 Site Layout & Surrounding Topography 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 12 Figure 3-4 Site Ambient Noise Levels logger 4 13 Figure 3-5 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 1 13 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 14 Figure 3-8 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 4 15 Figure hour ultimate traffic map of the proposed development 24 Figure Existing Road Traffic Noise Contours 42 Figure 9-2 EDQ, AS3671 Assessment Ground Floor Noise Contours Day L Aeq No Mitigation 43 Figure 9-3 EDQ, AS3671 Assessment First Floor Noise Contours Day L Aeq No Mitigation 44 Figure 9-4 EDQ, AS3671 Assessment Ground Floor Noise Contours Night L Aeq No Mitigation 45 Figure 9-5 EDQ, AS3671 Assessment First Floor Noise Contours Night L Aeq No Mitigation 46 Figure 9-6 EDQ, AS3671 Assessment Ground Recreation Areas Noise Contours L A10, 18h No Mitigation 47 Figure 9-7 EDQ, AS3671 Assessment First Floor Noise Contours Night L A10, 18h No Mitigation 48 March 2015 Cardno vi

9 Glossary and Abbreviations A-weighted Level Ambient Sound Background Sound Level Decibel, db L 90, L 10 etc L Abg, T L Aeq, T RBL Sound Pressure Level, Lp, db, of a sound Sound Power Level, Law, db of a source As per db(a) defined below. Of an environment: the all-encompassing sound associated with that environment, being a composite of sounds from many sources, near and far. 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. Unit of acoustic measurement. Measurements of power, pressure and intensity may be expressed in db relative to standard reference levels. A statistical measurement giving the sound pressure level which is exceeded for the given percentile of an observation period, i.e. L90 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. The A-weighted background sound level measured over a time interval 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. Rating Background Level 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 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. March 2015 Cardno vii

10 1 Development Proposal The AMEX SUCE Stages 8A, 13 and 14, developments are under the control of the Economic Development Queensland (EDQ) formerly the Urban Land Development Authority. The site covers an estimated 9.25Ha with a saleable area of 5.9Ha. The site will be bounded by the existing Centenary Motorway approximately 90 metres to the north, proposed new roads to the east and Ripley Road approximately 700 metres to the west of the proposed site. Figure 1-1 below displays the site location relative to the surrounding area. Figure 1-1 Site Layout & Surrounding Topography Transport Noise Corridor Stage 14 Stage 13 Stage 8A March 2015 Cardno

11 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 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 April 2012 Iron NL Approximately 4m from Ripley Road April 2012 Iron NL m from Ripley Road on Bayless Road April 2012 Iron Nl Approximately 800m from Centenary Highways on Abrahams Road April 2012 Iron Nl 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. March 2015 Cardno

12 Figure 2-1 Noise Logger Locations Logger 1 Logger 2 Logger 4 Logger 3 March 2015 Cardno

13 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 2 24 km/h from a WSW / ESE direction Humidity: 38 83% Temperature: Range between 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: LA1: L A10: L A90 : 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 ). L Aeq : 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. March 2015 Cardno

14 Figure 3-1 Site Ambient Noise Levels logger Logger 1 - Ambient Noise Levels Measured at Centenary Highway (east of Ripley Road), Ripley Between 23 and 30 March Sound Pressure Level db(a) LAeq LAmax LA10 LA /03/2012 0:00 29/03/ :00 29/03/2012 0:00 28/03/ :00 28/03/2012 0:00 27/03/ :00 27/03/2012 0:00 26/03/ :00 26/03/2012 0:00 25/03/ :00 25/03/2012 0:00 24/03/ :00 24/03/2012 0:00 23/03/ :00 Figure 3-2 Site Ambient Noise Levels logger Logger 2 - Ambient Noise Levels Measured at Ripley Road, Ripley Between 23 and 30 March Sound Pressure Level db(a) LAeq LAmax LA10 LA /03/ :45 29/03/ :45 28/03/ :45 28/03/ :45 27/03/ :45 27/03/ :45 26/03/ :45 26/03/ :45 25/03/ :45 25/03/ :45 24/03/ :45 24/03/ :45 23/03/ :45 23/03/ :45 Figure 3-3 Site Ambient Noise Levels logger 3 March 2015 Cardno

15 120 Logger 3 - Ambient Noise Levels Measured at Abrahams Road, Ripley Between 23 and 30 March Sound Pressure Level db(a) LAeq LAmax LA10 LA /03/ :30 23/03/ :30 24/03/2012 0:30 24/03/2012 6:30 24/03/ :30 24/03/ :30 25/03/2012 0:30 25/03/2012 6:30 25/03/ :30 25/03/ :30 26/03/2012 0:30 26/03/2012 6:30 26/03/ :30 26/03/ :30 27/03/2012 0:30 27/03/2012 6:30 27/03/ :30 27/03/ :30 28/03/2012 0:30 28/03/2012 6:30 28/03/ :30 28/03/ :30 29/03/2012 0:30 29/03/2012 6:30 29/03/ :30 29/03/ :30 30/03/2012 0:30 30/03/2012 6:30 Figure 3-4 Site Ambient Noise Levels logger Logger 4 - Ambient Noise Levels Measured at Bayliss Road, Ripley Between 23 and 30 March Sound Pressure Level db(a) LAeq LAmax LA10 LA /03/ :30 23/03/ :30 24/03/2012 0:30 24/03/2012 6:30 24/03/ :30 24/03/ :30 25/03/2012 0:30 25/03/2012 6:30 25/03/ :30 25/03/ :30 26/03/2012 0:30 26/03/2012 6:30 26/03/ :30 26/03/ :30 27/03/2012 0:30 27/03/2012 6:30 27/03/ :30 27/03/ :30 28/03/2012 0:30 28/03/2012 6:30 28/03/ :30 28/03/ :30 29/03/2012 0:30 29/03/2012 6:30 29/03/ :30 29/03/ :30 30/03/2012 0:30 30/03/2012 6:30 Figure 3-5 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 1 March 2015 Cardno

16 Logger 1 - Averaged Ambient Noise Levels Measured at Centenary Highway (east of Ripley Road), Ripley, Between 23 and 30 March Sound Pressure Level db(a) LAeq LAmax LA10 LA90 Figure 3-6 Typical 24 Hour Averaged Site Ambient Noise Levels Logger Logger 2 - Averaged Ambient Noise Levels Measured at Ripley Road, Ripley Between 23 and 30 March Sound Pressure Level db(a) LAeq LAmax LA10 LA90 Figure 3-7 Typical 24 Hour Averaged Site Ambient Noise Levels Logger 3 March 2015 Cardno

17 100.0 Logger 3 - Averaged Ambient Noise Levels Measured at Abrahams Road, Ripley Between 23 and 30 March Sound Pressure Level db(a) LAeq LAmax LA10 LA90 Figure 3-8 Typical 24 Hour Averaged Site Ambient Noise Levels Logger Logger 4 - Averaged Ambient Noise Levels Measured at Bayliss Road, Ripley Between 23 and 30 March Sound Pressure Level db(a) LAeq LAmax LA10 LA90 The following tables demonstrate the measured noise levels for the daytime, evening and night-time periods at each logger location. March 2015 Cardno

18 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) Logger 2 (Ripley Road) Logger 3 (Abrahams Road) Logger 4 (Bayliss Road) pm- 7am Table 3-2 Measured Average LA10, 1hr (averaged over 7 day period) noise levels at logger locations. Measured L A10 1hr Noise Level,dB(A) Measured L A10 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: :00-13: :00-02: :00-14: :00-03: :00-15: :00-04: :00-16: :00-05: :00-17: :00-06: :00-18: :00-07: :00-19: :00-08: :00-20: :00-09: :00-21: :00-10: :00-22: :00:11: :00:23: :00-12: :00-00: March 2015 Cardno

19 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 the Centenary Highway Extension (CHE), Road traffic noise impact on the development site from proposed roads within the SUCE development Road traffic noise impact from Ripley Road 4.1 Statutory Requirements Development Approval Condition 14, Ipswich City Council The Development Application Decision Notice 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 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. 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 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 the 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. External formal living space of a proposed dwelling house, multiple dwelling or accommodation unit. Design Level Road Traffic Noise Criteria (a) Average L Amax (10pm-6am) not greater than 50dB(A), and (b) L Aeq(1hr) (10pm-6am) not greater than 35dB(A) L Aeq(1hr) (6am - 10pm) not greater than 45dB(A) L 10(18hr) not greater than 63dB(A) March 2015 Cardno

20 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 Buildings in a Transport Noise Corridor (QDC MP 4.4). QDC MP 4.4 specifies acoustic treatments based upon a noise category. Part of Amex SUCE Stage 14 has been identified to be located within 200 metres of the Centenary Highway. Therefore QDC MP 4.4 criteria is applicable to the affected 24 Lots within Stage 14 of this development and as a result have been assessed as such. Noise categories are defined by the measured (or predicted) L A10, 18hrat 1m from the facade of a dwelling, and are displayed below in Table 4-2. Table 4-2 QDC MP4.4 Noise Categories Noise Category Category 4 Category 3 Category 2 Category 1 Category 0 Level of transport noise*(l A10,18hr) for State controlled roads and designated local government roads 73 db(a) db(a) db(a) db(a) 57 db(a) The acoustic treatment for a dwelling is dependent upon its applicable noise category, with a recommended Weighted Sound Reduction Index (RW rating) specified for each building element (e.g. windows, walls, etc.) as shown below in Table 4-3. The applicable noise category for a dwelling can be reduced with the inclusion of screening features such as acoustic barriers. Table 4-3 QDC MP4.4 Schedule 1 Noise Category Minimum transport noise reduction (db(a)) required for habitable rooms Component of Buildings external envelope Minimum Rw required for each component Glazing 43 External Walls 52 Category 4 40 Roof 45 Floors 51 Entry Door 35 Category 3 35 Glazing 38 (where total area of glazing for a habitable room is greater than 1.8m 2 ) 35 (where total area of glazing for a habitable room is less than or equal to March 2015 Cardno

21 Noise Category Minimum transport noise reduction (db(a)) required for habitable rooms Component of Buildings external envelope Minimum Rw required for each component 1.8m 2 ) External Walls 47 Roof 41 Floors 45 Entry Door 33 Category 2 Glazing 35 (where total area of glazing for a habitable room is greater than 1.8m 2 ) 32 External Walls 41 Roof 38 Floors 45 Entry Door 33 Category 1 Glazing 27 (where total area of glazing for a habitable room is less than or equal to 1.8m 2 ) (where total area of glazing for a habitable room is greater than 1.8m 2 ) 24 Roof 35 Floors 35 Entry Door 28 (where total area of glazing for a habitable room is less than or equal to 1.8m 2 ) Category 0 No additional acoustic treatment required standard building assessment provisions apply Australian Standards The following Australian Standards provide criteria and methodology that has been adopted in this assessment. Australian Standard AS1055: 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 , Methods for the Measurement of Road Traffic Noise. March 2015 Cardno

22 Australian Standard AS3671:1989, Acoustics Road Traffic Noise Intrusion Building Siting & Construction AS/NZS 2107:2000 Table 4-4, 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 4-4 Recommended design internal noise levels AS/NZS 2107:2000 Type of occupancy/activity Recommended design sound level, L eq, Satisfactory db(a) Maximum 7 RESIDENTIAL BUILDINGS Houses & apartments near major roads Living areas Sleeping areas Work areas Apartment common areas (e.g. foyer, lift lobby 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 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: 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 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 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 Category 4. TNR greater than 35 db(a) is required; special acoustic advice should be sought. March 2015 Cardno

23 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 L A10, 18hr One metre in front of the most exposed part of a proposed noise sensitive place within 100m of a designated transport noise corridor QDC MP db(a) (Facade Corrected) L A10, 18hr External formal living space of a proposed dwelling house, multiple dwelling or accommodation unit. EDQ 63 db(a) (Facade Corrected) L Aeq, 1hr (6am-10pm) Inside living rooms of a proposed dwelling house, multiple dwelling or accommodation unit. EDQ 45 db(a) (Internal) L Amax, (10pm-6am) L Aeq, (10pm-6am) Inside bedrooms of a proposed dwelling house, multiple dwelling or accommodation unit. EDQ a) Lmax, 10pm-6am not greater than 50dB(A) b) Leq, 10pm-6am not greater than 35dB(A) March 2015 Cardno

24 6 Noise Assessment Methodology Computer modelling has been undertaken for the development site using SoundPLAN 7.3 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 7.3 computer noise modelling software. SoundPLAN 7.3 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 northern boundary of Stage 14 between the site and the Centenary Highway (where direct access is required, barriers are not practical, or an approved mitigation measure by TMR). 6.2 Noise Model Inputs & Assumptions 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 Input Date/Source Reference Ground Elevation Geometry Road Alignment Provided by Cardno Civil Provided by Cardno Civil 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 Road Traffic Noise Management Code of Practice (TMR RTNM CoP2008) to be applied to all modelling scenarios Assumed 100% soft ground absorption surfaces between road and March 2015 Cardno

25 Input Parameter Facade Reflection Correction to CoRTN for Façade Corrected Australian Conditions Receiver Height receivers Input Date/Source Reference +2.5 db(a) applied to prediction models, as all receivers are located at facades of receiver db(a) CoRTN correction for Australian conditions (with reference to TMR RTNM CoP2008) Assumed to be 1.8 & 4.6 metres above ground for ground and first floors respectively as required by the TMR RTNM CoP Traffic Flow Information The following road traffic flow model inputs were obtained from Cardno: Table 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 8A, 13 and 14 and Appendix B presents the 2031 traffic flows for the entire proposed development. March 2015 Cardno

26 Figure hour ultimate traffic map of the proposed development Stages 8A, 13 & 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. This report therefore, without shielding provided by site dwellings, provides a conservative assessment of predicted road traffic noise impact. March 2015 Cardno

27 6.3 Noise Model verification An existing scenario model was set up using SoundPLAN 7.3 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 Modelling Inputs Input Parameter Centenary Highway Ripley Road Traffic speed 100 km/h 60km/h Traffic flow: AADT 5, % 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 Logger 2 Ripley Road Logger 3 Bayliss Road (1) Logger 4 Abrahams Road (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. March 2015 Cardno

28 7 7.1 Modelled scenarios Ultimate 2031 traffic noise predictions were modelled using the verified SoundPLAN 7.3 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 8a and 13 and the southern part of Stage 14 have been identified to be in excess of 200 metres from the Centenary Highway therefore QDC MP 4.4 criteria has only been applied to the northern section of Stage 14. The remainder (Stages 8A, 13 and southern part of Stage 14) has been assessed against the EDQ criteria. For assessment against EDQ criteria, road traffic noise has been assessed against the most stringent EDQ internal 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 Existing road traffic noise contours (extrapolated from 2010 road traffic flow data) Ground EDQ / AS3671 Predicted road traffic noise contours for inside bedrooms and living areas of a proposed dwelling with no mitigation (Stages 8, 13 & 14 South) First EDQ / AS3671 Predicted road traffic noise contours for inside bedrooms and living areas of a proposed dwelling with no mitigation (Stages 8, 13 & 14 South) Ground EDQ / AS3671 Predicted road traffic noise impact for inside bedrooms and living areas of proposed dwellings with, 1.8m high barriers First EDQ / AS3671 Predicted road traffic noise impact for inside bedrooms and living areas of proposed dwellings with, 1.8m high barriers Ground QDC MP4.4 Predicted road traffic noise impact at the most exposed part of proposed dwellings within 200m from the designated transport corridor (Stage 14 north) First QDC MP4.4 Predicted road traffic noise impact at the most exposed part of proposed dwellings within 200m from the designated transport March 2015 Cardno

29 Modelled Scenario Year Floor Assessment Criteria Basis Description corridor (Stage 14 north) Ground QDC MP4.4 Predicted road traffic noise impact at the most exposed part of proposed dwellings within 200m from the designated transport corridor with, 1.8m high barriers (Stage 14 north) First QDC MP4.4 Predicted road traffic noise impact at the most exposed part of proposed dwellings within 200m from the designated transport corridor with, 1.8m high barriers (Stage 14 north) Ground EDQ / AS3671 Predicted road traffic noise contours for external formal living space with no mitigation (Stages 8, 13 & 14 South) Ground EDQ / AS3671 Predicted road traffic noise impact for external formal living space with 1.8m high barriers (Stages 8, 13 & 14 South) 7.2 Modelled Noise Barriers A 1.8 metre high road traffic noise barrier located as shown in Figure 7-1 has been included in the modelling to the north of the Stage 14 site along the site boundary with the Centenary Highway. 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. 7.3 Predicted 2031 Traffic Noise Levels 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 AS3671. There is no statutory recommended correction factor to convert L A10,18hrto 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 LAeq values. Table 7-2 LA10 to LAeq Conversion Factors for Day and Night Time Period Year Basis (Day) 6 am to 10pm L Aeq,1hr = L A10,18hr 3 db(a) Recommended in AS 3671 (Night) 10pm to 6 am L Aeq,8hr = L A10,18hr 7 db(a) Review of current logger data March 2015 Cardno

30 The results of noise modelling are displayed below in Table 7-3. Table 7-3 EDQ, AS3671 Assessment 2031 Predicted Noise & Required Category Based on Criteria for Inside Bedrooms and Living areas of a Proposed Dwelling Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier AS:3671 Category Required L A10, 18h Day L Aeq, 1h Night L Aeq, 1h Stage 8A Stage Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First March 2015 Cardno

31 Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier AS:3671 Category Required L A10, 18h Day L Aeq, 1h Night L Aeq, 1h Stage Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground Stage 13 First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First March 2015 Cardno

32 Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level With No Barrier AS:3671 Category Required L A10, 18h Day L Aeq, 1h Night L Aeq, 1h Stage Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First March 2015 Cardno

33 Figure 7-1 Location of Modelled Noise Barrier Stage 14 Stage QDC MP 4.4 Assessment Table 7-4 below provides results of the QDC, MP4.4 Assessment and the required category construction with and without the modelled noise barriers. The results highlighted in orange indicate Lots where the barrier is providing useful noise reduction. Table 7-4 QDC MP4.4 Assessment 2031 Predicted Noise & Required Construction Category With and Without a 1.8 metre High Perimeter Barrier Lot Centre of Lot RL, m Floor Level Predicted Traffic Noise Level With No Barrier Predicted Traffic Noise Level With 1.8m Barrier Required Construction Category with 1.8m Noise Barrier L A10, 18h L A10, 18h Stage Ground First Ground First Ground First Ground First Ground March 2015 Cardno

34 Lot Centre of Lot RL, m Floor Level Predicted Traffic Noise Level With No Barrier Predicted Traffic Noise Level With 1.8m Barrier Required Construction Category with 1.8m Noise Barrier L A10, 18h L A10, 18h First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First March 2015 Cardno

35 7.4 External Formal Living Space Assessment (Scenario 4) Noise modelling predictions indicate that a 1.8 metre noise barrier as previously modelled in the above sections will provide some benefit to reduce noise levels at ground level to comply with the EDQ / AS3671 external formal living space noise criteria of 63dB(A) for Stage 14. Barriers have not been modelled on internal roads within the site as we understand that this is not in accordance with the design intent for the site. The following table indicates the lots where balconies and formal entertainment spaces are recommended to be located on the opposite façade of the dwelling to the road and with no clear line of sight to the road. Table 7-5 EDQ External formal Living Space Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level L A10, 18h AS3671 external formal living space noise criteria Stage 8A Stage Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground March 2015 Cardno 33

36 Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level L A10, 18h AS3671 external formal living space noise criteria Stage 14 First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground Stage 13 First Ground First Ground First Ground First March 2015 Cardno 34

37 Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level L A10, 18h AS3671 external formal living space noise criteria Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground March 2015 Cardno 35

38 Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level L A10, 18h AS3671 external formal living space noise criteria Stage 14 First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground First Ground March 2015 Cardno 36

39 Lot Centre of Lot RL, m Floor Level Predicted External Road Traffic Noise Level L A10, 18h AS3671 external formal living space noise criteria First Ground First Ground First March 2015 Cardno 37

40 8 Recommendations 8.1 Building Envelope Design To ensure internal noise levels within habitable rooms of future dwellings, comply with the internal design benchmarks (Section 5), future dwellings in Stages 8A, 13 and 14 (south) 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 requirements which are detailed as follows: 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. Future dwellings located in Stage 14 should be designed in accordance with the category requirements of QDC MP4.4 as described in section of this report. 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. 8.2 Private Recreation Areas Road traffic noise levels are predicted to marginally exceed the external formal entertainment space criteria by up to 1 db(a) at 1 st floor external living spaces at lots 693, 694 & 742 Therefore, formal external living spaces (such as balconies) on the first floor level should be located on the southern side of the dwellings or with no clear line of sight (i.e. line of sight obstructed by blade walls) to The Centenary Motorway. March 2015 Cardno 38

41 9 Conclusions 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, for Stages 8a, 13 and 14. The proposed Ripley Valley (AMEX SUCE) development, Stages 8a, 13 and 14 are located within largely undeveloped future residential area of Ripley with low existing noise levels. The Centenary Highway is the dominant traffic noise source in the area, but currently carries relatively low traffic flow, with only 7,070 vehicles per day in This is expected to significantly increase to an estimated 63,000 vehicles per day in The following conclusions apply to this assessment: Centenary Motorway along the northern boundary of Stage 14 of the development has been identified to be the primary source of noise predicted to impact on Ripley Valley (AMEX SUCE) development, Stage 14. Residential Lots within the Amex SUCE Stages 8a, 13 and 14 (south)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 Stages 8a, 13 and 14 (south)of this development. However, some Lots located in Stage 14 (north) are located within 200 metres of the Highway, and as such have been assessed against QDC MP4.4 criteria. 9.1 QDC Assessment Modelling indicates that a 1.8 metre noise wall located along the northern boundary of stage 14 (north) provides some noise reduction to ground floor noise levels at 4 residential lots. QDC MP 4.4 specifies acoustic building treatments based upon a noise category. A 1.8 metre barrier reduces the acoustic treatment requirements at ground level for these 4 lots from a category two to a category one. Furthermore, acoustic design principles should be taken into account during the final stage when considering the overall layout and building orientations and shielding affects. Some principles to consider are listed below. The building to be set back from the transport corridor as far as possible; The building to shape away from the transport corridor; The building to shield courtyards and open space areas from the corridor; 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 corridor 9.2 EDQ Assessment Modelling indicates that with no additional barriers in place EDQ, AS3671 standard building category 2 constructions will be required for all other Lots located outside of the transport noise corridor. 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. March 2015 Cardno 39

42 Without a barrier, road traffic noise levels are predicted to exceed the external formal entertainment space criteria at the first floor level of 3 Lots by up to 1 db(a). However, we understand that a barrier is not in accordance with the planning intent for internal roads within this development, therefore formal external living spaces (such as balconies) should be located on the southern side of the dwellings or with no clear line of sight to the local road within the site, to the south of Stage 8A. March 2015 Cardno 40

43 Ripley Valley Amex SUCE Development Stages 8A, 13 & 14 ROL Phase APPENDIX A NOISE CONTOUR MAPS March 2015 Cardno 41

44 Figure Existing Road Traffic Noise Contours March 2015 Cardno 42

45 Figure 9-2 EDQ, AS3671 Assessment Ground Floor Noise Contours Day LAeq No Mitigation March 2015 Cardno 43

46 Figure 9-3 EDQ, AS3671 Assessment First Floor Noise Contours Day LAeq No Mitigation March 2015 Cardno 44

47 Figure 9-4 EDQ, AS3671 Assessment Ground Floor Noise Contours Night LAeq No Mitigation March 2015 Cardno 45

48 Figure 9-5 EDQ, AS3671 Assessment First Floor Noise Contours Night LAeq No Mitigation March 2015 Cardno 46

49 Figure 9-6 EDQ, AS3671 Assessment Ground Recreation Areas Noise Contours LA10, 18h No Mitigation March 2015 Cardno 47

50 Figure 9-7 EDQ, AS3671 Assessment First Floor Noise Contours Night LA10, 18h No Mitigation March 2015 Cardno 48

51 Figure 9-8 QDC, MP 4.4 Assessment Ground Floor Noise Contours LA10, 18h No Mitigation March 2015 Cardno 49

52 Figure 9-9 QDC, MP 4.4 Assessment Ground Floor Noise Contours LA10, 18h with 1.8 metre Barrier March 2015 Cardno 50

53 Figure 9-10 QDC, MP 4.4 Assessment First Floor Noise Contours LA10, 18h No Mitigation March 2015 Cardno 51

54 Figure 9-11 QDC, MP 4.4 Assessment First Floor Noise Contours LA10, 18h with 1.8 metre Barrier March 2015 Cardno 52

55 Ripley Valley Amex SUCE Development Stages 8A, 13 & 14 ROL Phase APPENDIX B TRAFFIC FLOW DATA March 2015 Cardno 53