Digital Train Radio System Kingsgrove BTS Site Review of ...

The ICNG states:
Where the predicted or measured LAeq (15 min) is greater than the noise affected level, the
proponent should apply all feasible and reasonable work practices to meet the noise
affected level;
The proponent should also inform all potentially affected residents of the nature of works to
be carried out, the expected noise levels and duration, and contact details; and
For works above the highly affected noise criteria respite periods may be required, and for
works outside standard hours there needs to be a strong justification and negotiation with
the community (DECC 2009).
Noise is likely to be created by construction trucks, machinery and, in particular, boring activities
required to establish the foundations for the monopole. These activities will be of a short
duration.
Construction is expected to take between four and six weeks and all works is expected to be
undertaken during standard working hours. Given this, background noise monitoring and the
establishment of noise management levels for residential receivers is not proposed. The ICNG
does, however, prescribe a highly noise affected criteria of 75 dBA L Aeq, 15min, which is the point
where there may be strong community reaction to noise. Given the offset distance and the
natural vegetation barrier, it is unlikely that dwellings, commercial premises or schools will
experience a noise level above the highly affected level of 75 dBA L Aeq, 15min during the noisiest
works.
A range of standard construction noise mitigation measures is proposed to minimise noise
(Refer to Table 2), and the community will be provided with details of the works before
construction begins. A qualitative construction noise assessment table is provided to assess
construction activity to the nearest residential receivers (Refer to Section 4.5.1).
Construction Vibration
Vibration effects from the operation of heavy machinery, such as vibratory rollers or large earth
moving equipment have the potential to cause structural disturbance or discomfort. The
proposed work will not require the use of vibration causing heavy machinery.
Discomfort effects are not expected given the types of machinery required for construction
works. Similarly, structural damage to buildings is not expected as the nearest buildings are
adjacent to the railway and already experience vibration from trains on a regular basis.
Operational Noise and Vibration
No operational impacts are expected.
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