Field measurement of reverberation time and average absorption of one high-rise building room by road traffic noise penetrating facade

The facade insulation (FI) is one choice for Road traffic noise (RTN) at a high-rise accommodation building nearby a motor road. The weakness of FI is from window, so the window insulation (WI) is also a prioritized descriptor. ISO16283-3 states a field method to measure FI using RTN. However, in room acoustics, besides FI, reverberation time (RBT) or indoor average sound absorption (IASB) are another two un-ignorable descriptors. When the value of IASB is small, the indoor noise is not only contributed from penetrating façade RTN, but also supplemented by the residual sound from high reverberation field, weakening FI. As a parallel to ISO16283-3, this paper suggests an engineering method to measure RBT and IASB of one high-rise building room close to a motor road by penetrating façade RTN. It can supply a convenient tool for the field measurement of RBT and IASB with RTN. At the end, we made a field measurement of RBT, IASB, and WI at a hotel room nearby a viaduct in Hangzhou of China, assistant to adjust RBT or IASB and WI so as to improve the sound quality of the hotel. Further, the method can extend to the lines of rail, aviation, and shipping.

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Measurements and prediction of road traffic noise along high-rise building façades in Athens

Noise Mapping ◽

10.1515/noise-2020-0001 ◽

2020 ◽

Vol 7 (1) ◽

pp. 1-13 ◽

Cited By ~ 1

Author(s):

Alexandra Sotiropoulou ◽

Ioannis Karagiannis ◽

Emmanouil Vougioukas ◽

Athanassios Ballis ◽

Aspasia Bouki

Keyword(s):

Vertical Distribution ◽

Road Traffic ◽

Traffic Noise ◽

Well Being ◽

Urban Morphology ◽

Design Stage ◽

Road Traffic Noise ◽

High Rise ◽

High Rise Building ◽

Building Facades

AbstractConstant exposure to traffic noise pollution can have significant impact on human health and well being. Occupants of high-rise buildings along noisy traffic arteries are severely affected. In an attempt to contribute to noise protection design of prospective high-rise buildings, traffic noise measurements and prediction using the CRTN (calculation of road traffic noise) model, were made along the façade of a high-rise building in central Athens. The aim was to test the accuracy of this model in predicting the vertical distribution (mapping) of traffic noise along such building façades, under the local urban characteristics of the Mediterranean capital. The predicted and measured noise levels were found to be highly coherent with each other, and their vertical distribution pattern, by and large, confirmed findings from earlier studies. Nevertheless, the predicted values had a tendency of underestimation, with a mean difference −2.2 dB(A) with reference to measured values. It is considered that this underestimation is associated mainly with a newly proposed feature of urban morphology, namely (local) geo-morphology. By and large, it can be inferred that the CRTN model is a useful tool, suitable for the prediction of traffic noise along high-rise building façades during their planning and design stage. The results represent a further step towards more general application of this model, as well as a contribution to the use of this model considering a wider number of urban features.

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Three-dimensional virtual reality-based subjective evaluation of road traffic noise heard in urban high-rise residential buildings

Building and Environment ◽

10.1016/j.buildenv.2018.11.004 ◽

2019 ◽

Vol 148 ◽

pp. 468-477 ◽

Cited By ~ 12

Author(s):

Jin Yong Jeon ◽

Hyun In Jo

Keyword(s):

Virtual Reality ◽

Road Traffic ◽

Residential Buildings ◽

Subjective Evaluation ◽

Traffic Noise ◽

Three Dimensional ◽

Road Traffic Noise ◽

High Rise

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Noise exposure of the residential areas close to urban expressways in a high-rise mountainous city

Environment and Planning B Urban Analytics and City Science ◽

10.1177/23998083211015249 ◽

2021 ◽

pp. 239980832110152

Author(s):

Heng Li ◽

Hui Xie

Keyword(s):

Urban Areas ◽

Noise Exposure ◽

Road Traffic ◽

Traffic Noise ◽

Road Traffic Noise ◽

Residential Areas ◽

Noise Levels ◽

Night Time ◽

Acoustic Environment ◽

High Rise

Urban expressways can generate excessive noise in the surrounding urban areas, and it tends to be more complex in mountainous cities, due to the undulating terrain, dense population and compact urban structures. This article aims to investigate the objective acoustic environment and road traffic noise exposure, including the noisy evaluation, annoyance and effect of roadside apartments in residential areas close to urban expressways in the high-density, high-rise, mountainous city of Chongqing. Three housing estates were selected for a series of field measurements, questionnaire surveys and noise mapping. There was a significant negative correlation between night-time noise levels and the distances to the urban expressway ( p < 0.01). Moreover, the differences between the daytime and night-time noise levels were generally insignificant (0.7 to 3.6 dBA) at the roadside locations. Differences in reaction to noise exposure in a variety of both person-related and housing condition variables were found, especially between roadside and non-roadside locations or residents. In addition, 75.0% of roadside residents identified the traffic noise as ‘very’ or ‘extremely’ annoying, and 66.7% of them regarded the acoustic environment as the priority environmental factor that needs to be improved. Difference in the ‘bedroom-window orientation’ had a significant effect on subjective noise evaluation. Rectangular-shaped apartments along the roadside obtain better noise reduction capacities than tower-blocks through the simulation. The acoustic performance of road cuttings, as an appropriately designed earth embankment, is improved along with deeper vertical alignment, and slope angles of 30° and 75° should be avoided.

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