Appendices 6 SMP, 7 Bushfire & 8 Noise impact - Email 3 of 4 - MCU16/0153 & REC16/0041

It is noted that the Hotel’s mechanical plant is currently generating noise levels in excess of what would be
acceptable under the EPP Act as required with the adjoining land uses.
ASK has been advised that to reduce the potential noise impacts from the Hotel’s mechanical plant, it is
proposed to mitigate the plant at the noise source i.e. install noise attenuation at the Hotel.

6.5         Predicted Music Noise Levels
The amplified music and patron noise emissions from the Hotel have been predicted at the proposed Linea
houses. The noise levels are predicted to be 65 dBA Lmax at facade the nearest Linea house.
As previously discussed, the OLGR licensing requirements for the Hotel are unknown to ASK Consulting, so
it is unclear if the Hotel was operating in accordance with its Licensing conditions or not during the
measurement period.
It is ASK’s understanding that in assessing potential noise complaints from licensed venues, OLGR would
undertake noise measurements within the sensitive location with all external windows/doors open.
Therefore any mitigation controls incorporated into the residential development would not be taken into
consideration by OLGR. Based on the noise measurements undertaken, the internal noise levels from the
Hotel would likely exceed OLGR’s noise criteria at the proposed Linea Houses.
On the basis that the external windows/doors are closed, to reduce the potential noise impacts from the
Hotel and achieve the internal acoustic quality objective of 47 dBA LA1,adj,1hour, upgrades to the external
facade of the Linea Houses would include the following:
    External Walls: Lightweight external walls (Rw 41): 6mm fibre cement sheeting over minimum 76mm
     wide steel studwork (or 90mm wide timber studwork), lined internally with 10mm plasterboard
     sheeting and 50mm glasswool insulation in the cavity.
    Roof (Rw 41): Pitched metal roof with internal 10mm plasterboard sheeting for the ceiling and
     50mm glasswool insulation in the cavity.
    External Glazing (Rw 33): Acoustically rated glazing system including frame, which may entail 10mm
     think laminated glass.
To achieve the nominated internal noise criteria will require external openings to be closed when these
habitable rooms are occupied. Therefore, an air‐conditioning/mechanical ventilation system that does not
degrade the internal acoustic environment or the sound isolation of the building envelope, and also meets
the ventilation requirements of the Building Code of Australia may need to be installed.

6.6         Predicted Drive‐Thru Noise Levels
The noise emissions from the drive‐thru have been predicted at the proposed Linea Houses. It is anticipated
that there are minimal vehicle movements through the drive‐thru and only between the daytime and
evening hours of 7am and 10pm.
Preliminary calculations indicated that a 2.5m high acoustic fence (2.5m above the height of the Hotel
driveway) would be required along the eastern boundary adjacent the Hotel site as presented in Figure 6.1.
On this basis, the predicted noise levels from 15 vehicles in a 15 minute period have been predicted and are
presented in Table 6.2.

Table 6.2 Predicted Drive‐Thru Noise Levels

                                                                  Comply with Day or       Comply with Day or
                           Predicted Noise      Predicted Noise
        Source                                                    Evening Noise Limit      Evening Noise Limit
                          Level Leq,1hour dBA    Level Lmax dBA
                                                                   42 dBA LAeq,adj,1hour    52 dBA LA1,adj,1hour
  10 x car movements              29                  46                   Yes                     Yes


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