Façade Shaping as Local Means Protecting Against Traffic Noise

Janczur, R.; Walerian, E.; Czechowicz, M.

doi:10.3813/aaa.918457

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…When a window is located between two vertical fins, this situation is even worse, because of the multiple reflections between the fins. Janczu et al [24] numerically illustrated the noise distribution within a vertical re-entrant region of a high-rise building facing a parallel road. The channel-like dual-fin structure resembles a re-entrant region, which tends to direct the noise energy to the upper floors.…”

Section: Fins Lintels Screens and Similar Protrusionsmentioning

confidence: 99%

A Review on Natural Ventilation-enabling Façade Noise Control Devices for Congested High-Rise Cities

Tang

2017

Applied Sciences

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Abstract:This review summarizes the current status of the research and development of natural ventilation-enabling noise control devices for use on the façades of high-rise residential buildings in congested cities. These devices are important for a sustainable urbanized city, as they are supposed to offer good acoustical protection to citizens, allowing for an acceptable level of natural ventilation inside residential units; energy for mechanical ventilation can then be saved. From the information presented in the existing literature, it is concluded that protrusive devices, such as lintels and balconies, are not effective noise screening devices, even if they are installed with sound absorbers and/or reflectors, under the effect of city reverberation. On the contrary, plenum windows and similar structures, which are plenum structures with a staggered air inlet and outlet, are interesting alternatives that are worth rigorous considerations.

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Section: Fins Lintels Screens and Similar Protrusionsmentioning

confidence: 99%

A Review on Natural Ventilation-enabling Façade Noise Control Devices for Congested High-Rise Cities

Tang

2017

Applied Sciences

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“…Naish assessed nine balcony types to provide guidance on optimised acoustic treatment [24]. Janczur assessed the recess of façades and building position to reduce noise levels [25].…”

Section: Introductionmentioning

confidence: 99%

The effect of street canyon design on traffic noise exposure along roads

Sánchez

Renterghem

Thomas

et al. 2016

Building and Environment

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Abating road traffic noise pollution is one of the main urban environmental challenges nowadays.However, architects and urbanists take decisions on urban regulations that define the shape of streets and buildings without taking this aspect into account. Furthermore, there is little information about the influence of urban geometry on traffic noise exposure in streets. In this study, the effect of street canyon design on sound pressure level distribution is numerically studied in high detail with the full-wave finite-difference time-domain method (FDTD). The CNOSSOS equivalent source power spectra were used to approach road traffic noise sources along two traffic lanes. Receivers both along the façades and the sidewalks have been considered in 42 cases. Numerical results demonstrate that building shape, street geometry and the presence of street furniture can have a strong impact on people's noise exposure. Building shape can be responsible for variations of up to 7.0dB(A) at pedestrians. Building-façade design can reduce the average exposure at windows with 12.9dB(A). It was further predicted that street geometry can enhance the positive effect of low barriers to 11.3dB(A) along sidewalks. It was therefore concluded that carefully designing building façades and street geometry could improve the sound climate for people living and walking along busy urban streets and should be considered in future urban street design.

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