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Navegando por Assunto "Traffic noise"

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    Influência do ruído de tráfego em edifícios e proposta de solução desenvolvida com auxílio de modelos numéricos
    (Universidade Federal do Pará, 2011-05-27) GUIMARAES, Erick Van Casseb; MELO, Gustavo da Silva Vieira de; http://lattes.cnpq.br/8850986817571748
    In Brazil, the number of houses and apartments that suffer the influence of noise pollution is quite large. Currently, this question gained important local attention when Belém-PA was elected the “National Capital of Noise” for several years in a row, according to data obtained by the IBGE. Among the most common types of noise pollution, the biggest complaint of society is regarding traffic noise, which is inherent to the daily life of any great city. While the traffic noise concerns increase, so does the preoccupation with a degree of discomfort from the population, justifying the development of means to quantify and reduce such discomfort beyond the means of regulations for this situation by Brazilian standards. Therefore, the condition of traffic noise, while a principal agent of annoyance for the population in which it refers to the noise pollution, it comes to justify the necessity to realize a study that aims at the development of elements of construction by means of new geometrics and composition of existing materials that minimize the penetration of traffic noise to the internal environments of these constructions. So, this work presents the results of studies of the acoustic behavior in situated constructions next to roads of great flow of vehicles which suffer interferences caused by the generation of traffic noise. So far, there were measures carried out in the field of a 25 story building in advanced stages of construction and was chosen as the subject for this study, which represents a numerical modeling of this building with the help of the software ODEON.
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    Ruído e configuração espacial urbana: estudo de caso em Belém-PA
    (Universidade Federal do Pará, 2012-11-23) MOURA, Vânia Raposo de; MELO, Gustavo da Silva Vieira de; http://lattes.cnpq.br/8850986817571748
    A large portion of the population that lives in urban centers has already suffered or is suffering from problems caused by urban noise, especially due to, among other factors, the proximity of roads of intense traffic of vehicles. Studies of several areas of knowledge are presenting possible harms caused to people as a consequence of a long exposure to high noise levels. Under this point of view, noise has become a social problem, implying the necessity to make its control to improve the quality of life for citizens. Lately, this control has been done mainly by private initiatives, through the internal ambient sound insulation. Regarding the external environment, few measures were taken. Studies about this reveal conflicts between the urban guidelines for the urban development, land use and occupation and the acoustic comfort. The main objective of this work is to study the interactions between urban noise (especially regarding traffic noise) and urban space configuration, using as experimental field an area of Marco neighborhood, in Belém-PA, near Almirante Barroso Avenue. For this, a methodology was created based on standards and theories that approach this theme and makes it possible to obtain built mass characteristic indexes (roughness, porosity, concentration and porosity). The comparison of these indexes with sound levels obtained through “in loco” collected data (using a sound pressure level meter), allow the identification of the urban form physical characteristics that influence external sound environment and that can serve as subsidies to the planning and design of the cities, preventing the formation of extremely unhealthy sound areas.
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