Noise mapping approach for the acoustic environment of mountainous cities: A pilot study in Chongqing, China

2015 ◽  
pp. 261-266
Environments ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 4 ◽  
Author(s):  
Georgia Gerolymatou ◽  
Nicolas Rémy ◽  
Konstantinos Vogiatzis ◽  
Vassiliki Zafiropoulou

In 2013 and 2014, two main International Airports in Greece were evaluated through the European directive on noise environment 2002/49/EC: “Nikos Kazantzakis” International Airport of Heraklion Crete and “Ioannis—Kapodistrias” International Airport in Corfu, both located in highly touristic areas of Greece. Acoustic measurement’s campaign, environmental noise mapping simulations and population exposure to noise were implemented in order to produce a complete Strategic Noise Map. Correlated to this acoustic approach, a comprehensive interview campaign and a detailed soundscape analysis were also conducted in both airports’ adjacent areas (Alikarnassos district in Heraklion and the peninsula of Canoni in Corfu City) in order to understand the impact of aircraft movements on both local residents and tourists, and analyze the perception of the soundscapes. A similar evaluation was also executed in order to assess possible health effects by using the WHO’s DALY’s (Disability Adjusted Life Year) metrics for environmental noise in relation to the exposure of the population. This paper presents the main results of these representative case studies, attempting a combined assessment of both health effects and soundscape characteristics to be used as evaluation tools towards the management and the rehabilitation acoustic environment characterized mainly by aircraft noise in touristic areas.


Noise Mapping ◽  
2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Francesco Aletta ◽  
Jian Kang

AbstractIn the guidelines about the management of areas of good environmental noise quality recently published by the European Environment Agency (EEA) it is suggested to combine different methodologies, like noise mapping, sound level measurements and the soundscape approach. Such a recommendation has started to be recognised by a number of local authorities in Europe that are gradually integrating a holistic concept into their environmental noise policies. This research aimed to explore and demonstrate the possibility to integrate conventional noise mapping methods and soundscape methods in an actual urban redevelopment project. A case study was made using the Valley Gardens project in Brighton & Hove (UK). Different scenarios of sound-pressure level distributionswere simulated for both traffic sound sources (i.e. noise maps) and natural sound sources (i.e. sound maps). Additionally, individual responses about the sound environment of the place collected during an on-site question survey were used to implement soundscape maps.The overall picture revealed that the road traffic noise should be reduced, but also it is feasible that preferred sounds likewater features or birdsong could be introduced to make the sound environment more appropriate for the place. Generally, within the framework of this research, noise maps, sound maps and soundscape maps were used together to "triangulate" different layers of information related to the acoustic environment and the way it is perceived, providing a possible working procedure to consider for planners and policy-makers in the future.


Proceedings ◽  
2020 ◽  
Vol 42 (1) ◽  
pp. 60 ◽  
Author(s):  
Francesc Alías ◽  
Joan Claudi Socoró ◽  
Ferran Orga ◽  
Rosa Ma Alsina-Pagès

Road Traffic Noise (RTN) is one of the main pollutants in urban and suburban areas, negatively affecting the quality of life of their inhabitants. In the context of the European LIFE DYNAMAP project, two Wireless Acoustic Sensor Networks (WASN) have been deployed to monitor RTN: one in District 9 of Milan, and another along the A90 motorway of Rome. Since the dynamic mapping system should be able to identify and remove those Anomalous Noise Events (ANEs) unrelated to regular road traffic (e.g., sirens, horns, speech, and doors), an Anomalous Noise Event Detector (ANED) has been included in the dynamic noise mapping pipeline to avoid biasing the computation of the equivalent RTN levels. After deploying the 24 low-cost acoustic sensor networks in both pilot areas, WASN-based acoustic datasets were built to adapt the previous version of the ANED algorithm to run in real-operation conditions. In this work, we describe the preliminary results of the analysis of the 154 h WASN-based urban acoustic dataset obtained from the Milan city in terms of the main characteristics of ANEs. The results confirm the unbalanced nature of the problem (83.7% of the data corresponds to RTN), showing the urban WASN-based dataset a larger number of ANEs with higher local predominance than what was observed in the previous expert-based recording campaign, which underlines the importance of the accurate modeling of the urban acoustic environment to train the ANED properly.


Noise Mapping ◽  
2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Brigitte Schulte-Fortkamp ◽  
Pamela Jordan

AbstractThe harmonization of noise indicators, noise mapping, and action plans delivers basic administrative information not only for noise abatement in highly noisepolluted areas, but also for comparisons across built environments regionally and internationally. However, such activities do not provide any tools or essential knowledge for the more demanding tasks required in designing and planning sustainable built environments that are supportive to wellbeing and health. Without knowing the determining factors behind dose-response curves [1, 2], the decision process for developing action plans is unnecessarily restricted. Optional courses of action for handling a noise problem cannot be sufficiently considered without understanding the full context—physical, cultural, emotional— of noise’s effect on people. Therefore, an approach for considering these many angles must involve diverse fields of practice and interdisciplinary approaches. One such methodology is the multidimensional Soundscape Approach, which emphasizes how the acoustic environment is perceived, experienced, and/or understood by a person or people in context. Relying on principles of the Soundscape Approach, two urban green spaces will be examined regarding noise abatement strategies in relation to visitors’ experiential expectations. It will be shown how and why soundscape is an invaluable tool in detecting and analyzing needs for an adequate acoustic environment, accounting for people’s concerns and integrating their local expertise to guide the process of planning, designing and maintaining sites.


Noise Mapping ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 87-98
Author(s):  
Konstantinos Vogiatzis ◽  
Dimitrios Dimitriou ◽  
Georgia Gerolymatou ◽  
Aristeidis Konstantinidis

AbstractAthens International Airport (A.I.A) is the first major transportation infrastructure in Greece with the participation of the private sector, a pioneer international Public-Private Partnership. Environmental protection is a priority, and AIA, is committed to protect the environment and preventing or lessening negative impacts, through a comprehensive Environmental Policy and Procedures. Within this framework, AIA has already carried out the study for Strategic Noise Map (SNM) and the Noise Action Plan (NAP) for the Aircraft Noise. According to the European Directive 49/2002 the study should be repeated every 5 years. This research article focuses on the comparative study for the latest SNMs 2017 & 2019 (ECAC Doc.29) and for 2019 (executed by the new methodology CNOSSOS-GR), for the respective traffic data 2016 & 2018, and presents the results of the acoustic model in order to create the Strategic Noise Maps for Lden & Lnight indicators. With a view to implementing the legislation, an analysis of aircraft mix for every year (except helicopters, military and other specific flights) was carried out in accordance with the categorisation provided for in the relevant recommendation of the Committee of 6 August 2003 and the European Commission adopted Directive 2015/996. The potential health effects were further analyzed using the World Health Organization (WHO’s) Disability Adjusted Life Year’s (DALY’s) metrics for aircraft noise in relation to the exposure of the population based on the results of alternative comparative Strategic Noise Maps. The aim of the study is to show how the combination of both the implementation of the European Directive 2002/49 and 2015/996 and the DALY approach is an analysis tool for the evaluation of the acoustic environment. As we can observe in the results, the overall findings are significantly lower in the case of SNM 2019 (executed by the new methodology CNOSSOS-GR) than in the others.


2021 ◽  
Vol 263 (2) ◽  
pp. 4615-4621
Author(s):  
Katarina Paunovic ◽  
Branko Jakovljević ◽  
Radmila Mirčić

We present a pilot study on noise perception and annoyance related to community and neighborhood noise sources during the COVID-19 lockdown in Serbia, enforced from March 15 to May 6, 2020. The online anonymous survey was conducted using social network platforms. Respondents from all over the country, aged 15 to 75 years took part in the study. All participants worked or studied from their homes during the investigated period. Overall, during the lockdown, participants perceived less noise from the major community sources, such as road traffic, air traffic, and construction works on the streets; at the same time, they perceived more noise from their neighbors, such as noise from electrical appliances and elevators inside the buildings, as well as noise from humans (music, voices, steps) and animals. In addition, respondents more often perceived "new" community sounds, such as birds, church bells, and emergency vehicles. They found the sirens of emergency vehicles and noise from their neighbors most annoying at that time. Many participants changed their behavior and attitudes toward noise during the lockdown. Every sixth participant complained about neighborhood noise. This study points to the need for the improvement of the acoustic environment at home in the future.


Noise Mapping ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 8-21
Author(s):  
Virginia Puyana-Romero ◽  
Giuseppe Ciaburro ◽  
Giovanni Brambilla ◽  
Christiam Garzón ◽  
Luigi Maffei

AbstractNoise mapping is a useful and widespread method to visualise various items like the exposure to noise pollution, statistics of affected population, different noise source contribution analysis, and it is also a useful tool in designing noise-control plans. Some researches have moved a step further, proposing maps to represent the people perception of the acoustic environment. Most of these maps use colours as mere tools to display the spatial variability of acoustic parameters. In this paper the colours associated by interviewed people to different urban soundscapes have been analysed, and the possibility of using meaningful colours to represent the soundscape quality in noise mapping has been examined. For this purpose, correspondence analysiswas applied on the data collected fromon-site interviews, performed in the water front of Naples and its surroundings. The outcomes show that in the pedestrian areas nearby the sea, the blue colour was often associated with the soundscape rating, whereas in the areas nearby the sea but open to road traffic the interviewees selected mainly the blue and grey colours. In the areas away from the sea, a wider selection of colours was observed: red and greywere predominantly selected in the areas open to road traffic and green, yellow and red in the green areas.


Author(s):  
John Silcox

Determination of the microstructure and microchemistry of small features often provides the insight needed for the understanding of processes in real materials. In many cases, it is not adequate to use microscopy alone. Microdiffraction and microspectroscopic information such as EELS, X-ray microprobe analysis and Auger spectroscopy can all contribute vital parts of the picture. For a number of reasons, dedicated STEM offers considerable promise as a quantitative instrument. In this paper, we review progress towards effective quantitative use of STEM with illustrations drawn from studies of high Tc superconductors, compound semiconductors and metallization of H-terminated silicon.Intrinsically, STEM is a quantitative instrument. Images are acquired directly by detectors in serial mode which is particularly convenient for digital image acquisition, control and display. The VG HB501A at Cornell has been installed in a particularly stable electromagnetic, vibration and acoustic environment. Care has been paid to achieving UHV conditions (i.e., 10-10 Torr). Finally, it has been interfaced with a VAX 3200 work station by Kirkland. This permits, for example, the acquisition of bright field (or energy loss) images and dark field images simultaneously as quantitative arrays in perfect registration.


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