Approved report

4 C D Developments
Environmental Traffic and Rail Noise Level Impact Assessment for Proposed Residential Unit Development,
54 Elm Street and 5 Pearl Street, Cooroy                                                                         Page 23 of 35



Rail Noise Control to Habitable Rooms

For rail noise control to habitable rooms Figure 7 details the location and height of the acoustic barriers.

For rail noise control to habitable rooms Table 9 details the Noise Category for each Unit, for Level 1
and Level 2, for each facade.

                                                       Table 9
     Rail Noise Category For Proposed Residential Units, Level 1 and Level 2, With 2.0 m Acoustic Barriers in Place

                                   Level 1 Noise Category                               Level 2 Noise Category
      Unit
                       West         North         East         South        West          North           East        South

        1                1           N/A           0             1            1            N/A             0            1
        2                0           N/A           0             1            0            N/A             0            1
        3                0            1            0            N/A           0             1              0           N/A
        4                1            1            0            N/A           1             1              0           N/A
        5               N/A           1            0             1           N/A            1              0            1
        6               N/A           1           N/A            1           N/A            1             N/A           1
        7                0            1           N/A            1            0             1             N/A           1
        8               N/A           1            0             1           N/A            1              0            1
        9               N/A           1           N/A            1           N/A            1             N/A           1
       10               N/A           0           N/A            0           N/A            1             N/A           1
       11                0            0           N/A            0            2             2             N/A           2



Combined Traffic and Raial Noise Control to Habitable Rooms

To ensure adequate noise control to habitable rooms for both rail and ultimate traffic noise levels, Table
10 below details the combined traffic and rail Noise Categories for each Unit, for Level 1 and 2, for each
facade.

                                                      Table 10
Traffic and Rail Combined Noise Category For Proposed Residential Units, Level 1 and Level 2, With 2.0 m High Acoustic
                                                  Barriers in Place

                                   Level 1 Noise Category                               Level 2 Noise Category
      Unit
                       West         North         East         South        West          North           East        South

        1                1           N/A           0             1            2            N/A             0            1
        2                0           N/A           0             1            0            N/A             0            1
        3                0            1            0            N/A           0             1              0           N/A
        4                1            1            0            N/A           2             1              0           N/A
        5               N/A           1            0             1           N/A            1              0            1
        6               N/A           1           N/A            1           N/A            1             N/A           1
        7                0            1           N/A            1            0             1             N/A           1
        8               N/A           1            0             1           N/A            1              0            1
        9               N/A           1           N/A            1           N/A            1             N/A           1
       10               N/A           0           N/A            0           N/A            2             N/A           2
       11                1            0           N/A            0            2             2             N/A           2




David Moore & Associates Pty Ltd                                                  Our reference: R21046/D3569/Rev.0/2.07.21