sydney-city-centre-review-of-environmental-factors

Long-term unattended noise monitoring
Table 6-17 shows the monitored long-term ambient noise levels across the study
area.
Table 6-17
Summary of unattended noise monitoring data for the study area
Report Reference 1
Clarence Street and York
Street
(ref: BPI-Erskine Street)
Daytime 7.00am
6.00pm
Noise level (dB(A))
Evening 6.00pm
10.00pm
Night-time
10.00pm 7.00am
RBL RBL RBL
66 64 57
Erskine Street intersection 63 59 54
(ref: BPI- Clarence Street)
Note 1: BPI denotes a measurement referenced from the Sydney City Centre Bus
Infrastructure.
The above data support the short-term attenuated monitoring, showing a similar
small variation in average long-term noise levels in the city centre between the
daytime, evening and night time.
Noise sensitive receivers
There is a diversity of land uses within the study area (refer to section 6.5.2). They
include high-rise residential buildings, public open spaces and other noise-sensitive
receiver types (eg educational facilities, health facilities and community support
facilities). As a result it was not feasible to assess the impact at every single receiver.
Consequently, a number of representative receivers within the study area were
selected. They represented those locations that are the most sensitive to change
(eg those that are located closest to each work site). The receiver locations are
described in Table 6 to Table 16 of Appendix D.
Vibration sensitive receivers
Structural building damage can occur up to 15 metres from a vibration source whilst
amenity effects (human comfort) can be experienced up to 100 metres from a
vibration source. Construction vibration impacts could therefore affect any noisesensitive
receivers that are located this distance from the works as well as any
buildings.
6.2.4 Potential impacts
Noise and vibration construction impacts
Construction noise
The noise modelling assessment assumed a typical worst case scenario where the
nosiest equipment (or a combination of equipment) would operate at its maximum
output and at the minimum distance between the limit of each work site and the
representative noise-sensitive receiver(s) listed in Table 6 to Table 16 of Appendix D.
Sydney City Centre Capacity Improvement 217
Review of Environmental Factors