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Mount Druitt Commuter Car ParkReview of Environmental FactorsTable 6.10Predicted construction LAeq(15minute) noise levelsReference Scenario Most potentially affectedreceiversBackground LA90noise level (dBA)Noise managementlevelLAeq(15minute) noise level (dBA)Predicted noise levelExceedance of noisemanagement level1 Demolition ofexisting structureand site clearing2 Relocation ofservices andpreparation ofsubstructure3 Construct floorslabs, columnsand walls4 Construction ofexternal cladding5 Construction ofexternal roadworks andfootpaths3 Mount Street (Commercial) 50 70 86 1659 North Parade (Court House) 50 76 1 82 6TAFE NSW – Western Sydney 50 65 2 76 112 Dixon Street (Residential) 47 57 67 103 Mount Street (Commercial) 50 70 73 359 North Parade (Court House) 50 76 1 70 -TAFE NSW – Western Sydney 50 65 2 64 -2 Dixon Street (Residential) 47 57 54 -3 Mount Street (Commercial) 50 70 80 1059 North Parade (Court House) 50 76 1 76 -TAFE NSW – Western Sydney 50 65 2 70 52 Dixon Street (Residential) 47 57 61 43 Mount Street (Commercial) 50 70 75 559 North Parade (Court House) 50 76 1 72 -TAFE NSW – Western Sydney 50 65 2 66 12 Dixon Street (Residential) 47 57 56 -3 Mount Street (Commercial) 50 70 81 1159 North Parade (Court House) 50 76 1 77 1TAFE NSW – Western Sydney 50 65 2 71 62 Dixon Street (Residential) 47 57 62 51 External noise level at Court Rooms‘ skylights. 2 External noise level assuming windows are closed - this assumptions is based on the relatively high road traffic noise levels in the areaKMH-2010123a REF Rev 4 doc. Page 68 of 116Status: Final
Mount Druitt Commuter Car ParkReview of Environmental FactorsThe commercial property north of the proposed site has no windows or entrancesfacing the site. The predicted construction levels in Table 6.10 represent thoseexpected on the eastern and western facades of the building. Exceedances of thenoise management levels of up to 16 dBA are predicted.The construction noise levels are predicted to exceed the noise management levels byup to 6 dBA at the Mount Druitt Court House.Predicted noise levels at the nearby Mount Druitt TAFE are expected to exceed thenoise management levels for some scenarios, but not by more than 11 dBA.Exceedances of the noise management levels of up to 10 dBA are predicted for theresidential receivers south of the railway corridor.Construction vibrationFor the proposed car park, equipment likely to generate ground-borne vibrationincludes jackhammers, CFA rig, excavators, vibratory rollers and dump trucks.As a guide, safe working distances for typical items of vibration intensive plant arelisted in Table 7 of Appendix E. The safe working distances are quoted for both―cosmetic damage‖ and human comfort.The safe working distances presented in Table 7 are indicative and would varydepending on the particular item of plant and local geotechnical conditions. Thedistances to the nearby commercial receivers and the Court House may fall within thesafe working distances with regard to ―cosmetic damage‖ for several of the plantitems. Any exceedences would be addressed in the Construction EnvironmentalManagement Plan.Operational noise assessmentThe ambient noise environment at the nearest residential receivers is dominated byexisting road traffic and rail noise. The proposed development would not introduce anynew noise sources to the area as it would be built on a site near existing car parks.Also, the distance to the nearest sensitive receivers would not be significantly reduced.Consequently, the maximum noise levels from short-term events, such as door slams,engine start-ups and cars accelerating are not expected to increase as a result of theProposal.The commercial building on the northern boundary of the proposed site is notexpected to experience any increases in noise levels due to operational noise from theproposed car park. The noise environment at the nearby TAFE would continue to bedominated by road noise from existing local streets without any expected adverseeffects from the proposed car park. Operational noise emissions from the proposedcar park to the adjacent Court House are not expected to create a noticeable increasein noise levels and are therefore not expected to cause any adverse impacts.In terms of additional traffic on nearby streets, only a very minor increase in traffic flowwould be expected due to the proposed car park. It would also mostly be limited topeak commute times.On this basis, the noise level contribution from activities within the proposed car parkand any additional road traffic to and from the car park would be consideredinsignificant when compared to existing levels of traffic noise.KMH-2010123a REF Rev 4 doc. Page 69 of 116Status: Final
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MOUNT DRUITT COMMUTER CARPARKREVIEW
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MOVEMENT SUMMARYMt DruittSouthern C
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MOVEMENT SUMMARYMt DruittMount St /
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MOVEMENT SUMMARYMt DruittSherbrooke
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KMH-2010123a REF Rev 4 docStatus: F
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Commuter Car Park Mt DruittVisual I
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Appendix AReport Number610.08297Pag
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Preliminary Site Investigation at63
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