Application of hybrid Shannon’s entropy – PROMEHTEE methods in weighing and prioritizing industrial noise control measures

2021 ◽  
pp. 1-14
Author(s):  
Mojtaba Haghighat ◽  
Saeid Yazdanirad ◽  
Mohammad Faridan ◽  
Mahsa Jahadi Naeini ◽  
Seyed Mahdi Mousavi
Keyword(s):  
Noise Control ◽  
Shannon’S Entropy ◽  
Control Measures ◽  
Industrial Noise ◽  
Shannon's Entropy

scholarly journals ASSESSMENT OF URBAN SPRAWL USING SHANNON’S ENTROPY AND FRACTAL ANALYSIS: A CASE STUDY OF ATAKUM, ILKADIM AND CANIK (SAMSUN, TURKEY)

2017 ◽  
Vol 25 (3) ◽  
pp. 264-276 ◽  
Author(s):  
Derya OZTURK
Keyword(s):  
Urban Sprawl ◽  
Fractal Analysis ◽  
Urban Form ◽  
Entropy Method ◽  
Shannon’S Entropy ◽  
Analysis Method ◽  
Maximum Likelihood Classification ◽  
Shannon's Entropy ◽  
Box Counting

Urban sprawl is one of the most important problems in urban development due to its negative environmental and societal impacts. Therefore, the spatial pattern of urban growth should be accurately analyzed and well understood for effective urban planning. This paper focuses on urban sprawl analysis in the Atakum, Ilkadim and Canik districts of Samsun, Turkey. In this study, urban sprawl was examined over a period of 24 years using Shannon's entropy and fractal analysis based on remote sensing and Geographic Information System (GIS). The built-up areas in 1989, 2000 and 2013 were extracted from Landsat TM/ETM+/OLI images using the maximum likelihood classification method, and urban form changes in the 1989–2013 period were investigated. The Shannon's entropy method was used to determine the degree of urban sprawl, and a fractal analysis method based on box counting was used to characterize the urban sprawl. The results show that Atakum, Ilkadim and Canik experienced important changes and have considerable sprawl and complex characteristics now. The study also revealed that there is no monotonic relationship between Shannon's entropy and fractal dimension.

Urban planning-Simulation of noise control measures

2015 ◽  
Vol 63 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Fernando Bunn ◽  
Paulo Henrique Trombetta Zannin
Keyword(s):  
Urban Planning ◽  
Noise Control ◽  
Control Measures

Priorities for occupational noise in Britain

2021 ◽  
Vol 263 (5) ◽  
pp. 996-1007
Author(s):  
Chris Steel ◽  
Paul Brereton
Keyword(s):  
Noise Control ◽  
Control Measures ◽  
Occupational Noise ◽  
High Noise ◽  
Enforcement Action ◽  
High Incidence ◽  
Hearing Damage ◽  
Workplace Noise ◽  
Current Risk ◽  
Reduced Risk

Regulation of occupational exposure to noise in Britain for 50 years has reduced risk. However, statistics from around the globe (and in Britain alone) suggest that the range in harm is between around zero and more than 1 in 4 workers exposed to high noise. The uncertainty in statistics and the potential high incidence and prevalence of harm justifies investigation. In Britain, we will investigate the current risk of occupational hearing loss and the effectiveness of current noise control measures. We propose to gather data during inspections of industries that are known to have high levels of workplace noise. Finding high incidence of hearing damage will indicate a failure of immediate management of risk and likely result in enforcement action. We propose to review employers' control of noise propagation in the workplace through use and maintenance of noise controls supplied with machines and supplemented with acoustic barriers and noise havens. We propose to review suppliers design and build of noise control into their products and their reported noise emissions for noisiest typical use. We are looking to benefit from the experience of our global counterparts before finalising our plans.

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