7.0 CONTROL OF NOISE AND OPERATION TIMES
1. Refer to the EIA/PMM and AEC/MD for the piling method and/or any other mitigation to be installed or provided to reduce noise pollution.
2. Conduct development activities within the specified time frame of 8:00 am to 5:00 pm and prohibit activities on Sundays and public holidays.
3. Carry out maintenance on vehicles and machinery and keep records of such maintenance as evidence for the environmental auditor.
4. Erect physical noise barriers with height and at locations specified in the AEC/MD. Material commonly used to erect the physical noise barrier are sheet metal panels (zinc hoarding). Other than that, composite panels can also be considered for constructing the noise barrier. Please refer to Plates 20 and 21 for examples of noise barriers.
Plate 20: Example of temporary noise barrier using zinc hoarding.
Plate 21: Example of temporary noise barrier using composite panels.
5. When probable, place high noise-emitting machinery at the furthest point from the receptor (Please refer to Figure 11 for an illustration of noise source allocation within a project site).
Figure 11: Illustration showing the allocation of the noise source from probable receivers.
6. Consider installing movable noise barriers when it is anticipated that high noise-emitting machinery such as piling machines are used on-site. Install the movable noise barrier as close as possible to either the noise source or the receiver, with no gaps or openings at the barrier joints to minimise noise disturbance to adjacent land users. Refer to Plate 22 for an example of a removable noise barrier.
Plate 22: Example of movable barrier used for mitigating noise from piling.
7. Refer to Appendix 1 for additional references on controlling noise from sites.