RCL MATC presentation - Planning€¦ · Table 3 of ICNG / Table A2 of TfNSW’s Construction Noise...
Transcript of RCL MATC presentation - Planning€¦ · Table 3 of ICNG / Table A2 of TfNSW’s Construction Noise...
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MMR IAC Hearing
Presentation on behalf of Melbourne
Anglican Trust Corporation
13 September 2016
Ross Leo
Airborne Construction Noise
Conclave agreed that noise limits recommended in ICNG or the
COM NVMG should be considered
Table 3 of ICNG / Table A2 of TfNSW’s Construction Noise
Strategy provides an internal management level of
45 dB LAeq,15 minute for places of worship
EPA 1254 provides no guidance for acoustically sensitive non-
residential receivers
Definition of unavoidable work in EPA 1254
Evening services on weekends potentially the most impacted
COM action levels 66 and 61 dB LAeq Saturday and Sunday
Evenings, respectively.
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Scenario A – Demolition –70-75 dB LAeq (Normal Hours)
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Scenario B – Shaft Construction –75-80 dB LAeq (Normal Hours)
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Scenario F – Concrete Pour –65-70 dB LAeq (24 Hours)
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Construction Vibration Building Damage
NV6 - DIN 4150 referenced which is
considered appropriate
St Paul’s Cathedral floor particularly
susceptible to vibration and ground
subsidence
A building damage threshold should
be considered
Uncertainty regarding prediction
accuracy given that propagation is
site specific – assessment is based
on theoretical estimates which have
a significant margin of error.
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Construction Vibration Building Damage
Stained glass windows, the organ and the
spire all susceptible to vibration
Construction of the Federation Square
connection has not been clearly defined
in the EES.
Building Damage - Recommendations
Given the sensitivity and heritage value of St Paul’s, detailed
propagation measurements must be made in-situ
St Paul’s requires a full geotechnical survey and building damage
assessment
Ongoing vibration monitoring during construction period at St
Paul’s Cathedral recommended.
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Environmental Performance Requirements
Unanimity between all experts in Conclave on most EPR’s
Particular concern over NV1 (EPA 1254 should be replaced by
ICNG), as no reference to acoustically sensitive non-residential
receivers
Definition of “Unavoidable” works
NV5 to be revised to include places of worship
NVB in its current form is incomplete (CNVMP)
Vibration propagation measurements essential (refer to conclave
comments regarding NV6).
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