| dc.description.abstract | With the urban trends towards higher density living and “mixed-use” developments, commercial premises are increasingly being located in close proximity to residential dwellings. Restaurants, cafeteria, bar & bistro and 24-hour gymnasiums below the residential apartments are some common examples of amenities in a mixed-use development that are often a source of noise annoyance. This paper investigates one such scenario where a commercial kitchen is located below a retirement living residential apartment. Sleep disturbance and noise an-noyance were key concerns for the resident, even though the measured indoor noise level within the dwelling achieved the acoustic design criteria. Analysis of the measured indoor noise levels and recorded audio showed that a low frequency noise source was cycling on and off periodically every 8 to 10-minutes. This noise source was generating noise levels at least 10 dB higher at 100 Hz than the residual noise in the apartment, and was considered to be the likely source of noise annoyance and sleep disturbance. The noise was traced to a nearby cool room refrigeration compressor associated with the commercial kitchen below. This paper discusses the in-vestigation undertaken and the noise control measures that were implemented. | en_US |
