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Previous issue date: 2017-01-25 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / As fontes sonoras propagadas no espa?o urbano, em especial o ru?do gerado pelos
ve?culos automotivos, t?m elevado os ?ndices de polui??o sonora nas grandes
cidades. Para avalia??o e controle do ru?do ambiental, surgem os mapas sonoros,
que permitem representar, mediante as curvas isof?nicas, os n?veis de press?o
sonora atuantes no espa?o urbano. Nesse contexto, o presente estudo objetiva
avaliar o impacto sonoro provocado pelo ru?do de tr?fego no bairro Castelo Branco,
em Jo?o Pessoa/ PB, por meio de simula??es computacionais no software
SoundPLAN?. Foram analisadas tr?s situa??es sonoras distintas: cen?rio atual no
per?odo de f?rias, cen?rio atual no per?odo de aulas e cen?rio hipot?tico de predi??o
para o ano de 2026. Como resultado, observou-se que o bairro est? fragmentado em
duas ?reas ac?sticas: a primeira, com ?ndices sonoros mais amenos, ? representada
pelo campus da UFPB; a segunda, com n?veis sonoros mais intensos, ? a ?rea de
uso predominantemente residencial. Os n?veis sonoros resultantes, nos tr?s
cen?rios, nos per?odos matutino e vespertino, encontram-se acima dos valores
recomendados pela legisla??o. Houve pouca diferen?a sonora entre o cen?rio atual
de f?rias e o de aulas. A morfologia urbana do bairro, em especial a vegeta??o
densa e os acentuados desn?veis topogr?ficos, desempenha importante papel de
atenua??o sonora. Os pontos cr?ticos de ru?do urbano presentes no Castelo Branco,
atingindo 83dB(A), s?o encontrados nas margens da Rodovia BR 230, nas rotat?rias
e nas vias arteriais. / The sound sources propagated in the urban space, in particular the noise generated
by automotive vehicles, have raised the levels of noise pollution in big cities. For the
evaluation and control of the environmental noise, sound maps have appeared,
which allows to represent, through the isophonic curves, the sound pressure levels
active in the urban space. In this context, the present study aims to evaluate the
noise impact caused by traffic noise in the Castelo Branco neighborhood, in Jo?o
Pessoa / PB, through computational simulations in SoundPLAN? software. Three
different sound situations were analyzed: current scenario in the vacation period,
current scenario in the class period and hypothetical scenario of prediction for the
year 2026. Three different sound situations were analyzed: current scenario in the
vacation period, current scenario in the class period and hypothetical scenario of
prediction for the year 2026. As a result, it was observed that the neighborhood is
fragmented into two acoustic areas: the first one, with smoother noise levels, is
represented by the UFPB campus; The second one, with more intense sound levels,
it is the area of predominantly residential use. The resulting sound levels in the three
scenarios during the morning and vespertine periods are above the values
recommended by the legislation. There was little sound difference between the
current holiday and classroom settings. The urban morphology of the neighborhood,
especially the dense vegetation and the accentuated topographic differences, plays
an important role of sound attenuation. The urban noise critical points, in Castelo
Branco, reaching 83dB (A), are found on the edges of the BR 230 highway, in the
rotations and in the arterial ways.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/22394 |
| Date | 25 January 2017 |
| Creators | Brasileiro, Tam?ris da Costa |
| Contributors | 03144094404, http://lattes.cnpq.br/6438797671562128, Moraes, Elcione Maria Lobato de, 30124867200, http://lattes.cnpq.br/2689084217741371, Ara?jo, Virginia Maria Dantas de, 14087979415, http://lattes.cnpq.br/5410580416665461, Ara?jo, Bianca Carla Dantas de |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM ARQUITETURA E URBANISMO, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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