Assessing the Acoustical Climate of Underground Stations

Nowicka, E.

doi:10.1080/10803548.2007.11105100

Cited by 5 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowicka [51] measured three underground stations, including Metro Politechnika, Metro Wierzbno, and Metro Stoklosy in Warsaw, Poland. The enclosures were one-platform stations of 10.0 to 11.0 m in width.…”

Section: Transport Hubs/stationsmentioning

confidence: 99%

“…Based on the physical outcomes obtained by measurements and software simulation, some studies [28] for museums/exhibition spaces suggested users' control, or presented conditional results, e.g., with/without the investigated exhibits, to avoid detrimental effects of noise level. Some studies [37] for shopping malls and transportation hubs/stations [51] put forward advice on the selections of space scale, shape with different acoustic absorption solutions. Feedbacks from the users certainly helped those seeking sufficient acoustic comfort besides loudness and speech intelligibility, for example, the results of some studies [40] indicated that the differences between large and small space scales were obvious.…”

Section: Effects On Designmentioning

confidence: 99%

See 1 more Smart Citation

Sound Environments in Large Public Buildings for Crowd Transit: A Systematic Review

2021

View full text Add to dashboard Cite

Sound environments in large public buildings are likely to be different from those of performance spaces, as well as those not specifically designed for acoustic “performance”, but where sounds still play an important role because of the function they can promote (or disrupt). The aim of this study was identifying common strategies and empirical approaches researchers have been implementing for these acoustically complex enclosures and to provide some methodological indications for future studies on the topic. Studies conducted in three building types for crowd transit, such as museums/exhibition spaces, shopping malls, and transportation hubs/stations, which were collecting data about either physical outcomes or individual responses for such sound environments, were selected. The Scopus databases were searched for peer-reviewed journal papers published in English without time limitations. An additional manual search was performed on the reference lists of the retrieved items. The general consideration on inclusion was to meet the requirement that the case belonged to the three building types, and then the specific inclusion criteria were: (1) including at least an objective acoustic measure of the space; or (2) including at least a subjective measure of the space. The search returned 1060 results; after removing duplicates, two authors screened titles and abstracts and selected 117 papers for further analysis. Twenty-six studies were eventually included. Due to the limited number of items and differences in measures across studies, a quantitative meta-analysis could not be performed, and a qualitative approach was adopted instead. The most commonly used objective measures were SPL, and more specifically often considered as LAeq, and T. The intervals across studies were currently of inconsistency, and the selection is recommended to take space scale factor into account. The used subjective measures can be classified into four categories as annoyance, affective quality, room-acoustic quality, and acoustic spatiality. Four basic perceptual assessments concerning dynamic contents are accordingly suggested as “annoying-not annoying”, “crowded-uncrowded”, “long-short (reverberation)”, and “far away-nearby”. The other descriptors can be project-specific. The methodologies involve measurement, questionnaire/interview, listening test, and software simulation. It is necessary for the former two to consider temporal and spatial features of such spaces, and the adoption of the latter two will lead to better understanding of users’ exposure in such spaces, e.g., acoustic sequences and user amount. The outputs of investigations inform that background noise level, e.g., 90 dB in museum/exhibition spaces, and sound reverberation, e.g., 4.0 to 5.0 s in shopping malls and transportation hubs/station, are of fundamental importance to the design of such spaces. Sufficient acoustic comfort can be achieved with integrated design of indoor soundscape.

show abstract

Section: Transport Hubs/stationsmentioning

confidence: 99%

Section: Effects On Designmentioning

confidence: 99%

Sound Environments in Large Public Buildings for Crowd Transit: A Systematic Review

2021

View full text Add to dashboard Cite

show abstract

Objective approach for analysis of noise source characteristics and acoustic conditions in noisy computerized embroidery workrooms

Aliabadi

Golmohammadi

Mansoorizadeh

2013

Environ Monit Assess

View full text Add to dashboard Cite

It is highly important to analyze the acoustic properties of workrooms in order to identify best noise control measures from the standpoint of noise exposure limits. Due to the fact that sound pressure is dependent upon environments, it cannot be a suitable parameter for determining the share of workroom acoustic characteristics in producing noise pollution. This paper aims to empirically analyze noise source characteristics and acoustic properties of noisy embroidery workrooms based on special parameters. In this regard, reverberation time as the special room acoustic parameter in 30 workrooms was measured based on ISO 3382-2. Sound power quantity of embroidery machines was also determined based on ISO 9614-3. Multiple linear regression was employed for predicting reverberation time based on acoustic features of the workrooms using MATLAB software. The results showed that the measured reverberation times in most of the workrooms were approximately within the ranges recommended by ISO 11690-1. Similarity between reverberation time values calculated by the Sabine formula and measured values was relatively poor (R (2) = 0.39). This can be due to the inaccurate estimation of the acoustic influence of furniture and formula preconditions. Therefore, this value cannot be considered representative of an actual acoustic room. However, the prediction performance of the regression method with root mean square error (RMSE) = 0.23 s and R (2) = 0.69 is relatively acceptable. Because the sound power of the embroidery machines was relatively high, these sources get the highest priority when it comes to applying noise controls. Finally, an objective approach for the determination of the share of workroom acoustic characteristics in producing noise could facilitate the identification of cost-effective noise controls.

show abstract

Comparative Evaluation of Ray Tracing and Diffusion Equation Modeling in Room Acoustics Design of Subway Stations

2020

View full text Add to dashboard Cite

Assessing the Acoustical Climate of Underground Stations

Cited by 5 publications

References 4 publications

Sound Environments in Large Public Buildings for Crowd Transit: A Systematic Review

Sound Environments in Large Public Buildings for Crowd Transit: A Systematic Review

Objective approach for analysis of noise source characteristics and acoustic conditions in noisy computerized embroidery workrooms

Comparative Evaluation of Ray Tracing and Diffusion Equation Modeling in Room Acoustics Design of Subway Stations

Contact Info

Product

Resources

About