Request for Further Information - 010.2007.00002398.001 [As Published] · 132007.2398

13.   Table 4.5 of the report indicated that buildings throughout the entire site require
      either Category 2 or Category 3 construction. This effectively precludes natural
      ventilation.    Part 6 of the report refers to air-conditioning to the ILU’s.
      Confirmation is required that it is intended to air-condition all buildings on the site
      and advice as to the form that air-conditioning will take (e.g. split systems
      servicing all rooms etc.).

14.   The report demonstrates in Figure 4 that outdoor spaces within approximately 40
      metres of the South-West boundary will exceed the 60dBA (LA10 18hr) criterion. In
      Section 4.6.5, it indicates that “architectural acoustic barriers” will be necessary.

      The Town Planning report at Section 5.4 refers to proposed noise control
      measures in the form of extended front patio areas. From Figure 4 it would
      indicate that the proposed measures would not be universally effective i.e. the
      front patios are not always in the sound shadow. Indicate how these other
      outdoor areas will be protected.

15.   The criteria for rail noise nominated in the EPP (Noise), namely 87dBA (max LA)
      and 65dBA (LAeq 24hr) set the obligations placed on QR in relation to the control of
      rail noise. They do not define the obligations of a Developer planning a noise
      sensitive use adjacent to a rail corridor.

      The council’s obligation is to ensure an appropriate indoor amenity for future
      residents. This shall be taken as an average maximum intruding noise level due
      to train passby events that does not exceed 50dBA in bedrooms and 55dBA in
      other living areas. This applies universally and not only in instances where the
      outdoor level is greater than 87dBA.

      The methodology of AS3671 can be used as a guide, namely that Category 1
      (normal) construction achieves an outdoor to indoor reduction of 10dBA. It
      follows that to meet an indoor limit of 50dBA, the outdoor limit at dwelling facades
      is 60dBA.

      The report should reassess rail noise against these criteria using the same
      calculation procedure as for AS3671.

16.   The report at Table 2.2 relies on the Offence Limits for refrigeration and air-
      conditioning plant defined in the Environment Protection Regulation. These are
      Office Limits and not Nuisance Limits. They should not be used as planning
      criteria.

      For fixed plant and equipment, Council requires compliance with the following
      noise limits at noise sensitive receptors:

          Daytime and evening 7am – 10pm: LA max adj equal to or less than LA90 +
      5dBA,
          night 10pm – 7am: LA max adj equal to or less than LA90 + 3dBA.

      These shall apply to all noise sensitive receptors including those within the
      facility.




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