Compiled Reference Document - 51995.1611.04 (As Published)

                 Your Mates Bowlsy Pty Ltd                                                                                      Reference: #1859d1-B
                 Your Mates Bowls Pub                                                                                             Date: 6 March 2025
                 Noise Impact Assessment


                 Appendix A – Nomenclature
                  Term                         Description
                                               means the part of the environment of an area or place characterised by the total amount of noise
                  Acoustic environment
                                               that may be experienced there.
                                               for an area or place, means the maximum level of noise that should be experienced in the acoustic
                  Acoustic quality objective
                                               environment of the area or place.
                                               Total encompassing sound in each situation at a given time usually composed of sound from many
                  Ambient (or total) noise
                                               sources near and far.
                                               Assessment Background Level (ABL) is a single figure background level for each assessment
                  Assessment background
                                               period (day, evening and night). It is the tenth percentile of the measured L90 statistical noise
                  level (ABL)
                                               levels.
                                               The following time periods are prescribed in the EHP’s Noise Measurement Manual to be used for
                  Assessment periods           long term background noise measurements: 7am to 6pm (‘Day’); 6pm to 10pm (‘Evening’); and
                                               10pm to 7am (‘Night’).
                                               Background creep occurs when noise levels creep higher and higher over time with the
                  Background creep
                                               establishment of new development in or near an area.
                                               The A-weighted sound pressure level of the residual noise (dB) exceeded for 90 per cent of a given
                  Background noise level,
                                               time interval, T, measured using time weighting ‘F’ and quoted to the nearest whole number of
                  (LA90,T)
                                               decibels.
                  Residence                    means a building or part of a building used or capable of being used as a residence.
                                               The value of the A-weighted sound pressure level of a continuous steady sound that within a
                  Equivalent continuous A-
                                               specified time interval, T, has the same mean-square sound pressure as a sound under
                  weighted sound pressure
                                               consideration whose level varies with time. The equivalent continuous A-weighted sound pressure
                  level (LAeq,T)
                                               level is quoted to the nearest whole number of decibels.
                                               A position where there are no reflecting surfaces, other than the ground, close enough to influence
                  Free field                   the sound pressure level. Taken as a minimum of 1.2 metres above ground level and 4m from the
                                               closest building façade.
                  Immission                    The sound energy received at a receptor point.
                                               Sound characterised by brief excursions of sound pressure (acoustic impulses) that significantly
                  Impulsive sound              exceed the background sound pressure. The duration of a single impulsive sound is usually less
                                               than one second.
                                               An area or place where noise is measured. A list of Sensitive Receptors is defined in EPP (Noise)
                  Sensitive Receptors
                                               2019 Schedule 1.
                                               Rating Background Level (RBL) is the overall single-figure background level representing each
                  Rating background level      assessment period (day/evening/night) over the whole monitoring period (as opposed to over each
                  (RBL)                        24-hour period used for the ABL). The RBL (or minLA90,1hour) is the level used for assessment
                                               purposes.
                                               Defined objectively in several different ways ranging from the smallest detectable physiological
                                               response to some external stimulus whilst asleep to actual behavioural awakening. Sleep
                  Sleep disturbance            disturbance can also be described subjectively using some appropriate scale after the event. If
                                               there are any effects on mood, attitudes or performance of some task the next day, such variables
                                               could also be measured, both objectively and subjectively.
                  Sound pressure level         Sound Pressure Level (SPL) in decibels is a logarithmic measure of the effective pressure of a
                  (SPL)                        sound relative to a reference level of 20 micro pascals (uPA)
                                               Sound Power Level (SWL) in decibels is ten times the logarithm of the ratio of the sound power to a
                  Sound power level (SWL)
                                               sound power reference level of 1 pico Watt (pW).
                                               Component of the ambient noise (or total noise) that can be specifically identified by acoustical
                  Specific noise source
                                               means and is associated with a specific source.
                                               Noise that gives fluctuations over a range of not more than 3dB on a sound level meter set to
                  Steady noise
                                               frequency weighting ‘A’ and time weighting ‘F.’




                 Live It Acoustics                                                                                                             Page 22

Document Set ID: 23656872
Version: 1, Version Date: 26/03/2025