This paper describes an assessment of noise caused by railway traffic in a large Latin American city. Measurements were taken of noise levels generated by trains passing through residential neighborhoods with and without blowing their horns. Noise maps were also calculated showing noise pollution generated by the train traffic. In addition - annoyance of the residents - affected by railway noise, was evaluated based on interviews. The measurements indicated that the noise levels generated by the passage of the train with its horn blowing are extremely high, clearly exceeding the daytime limits of equivalent sound pressure level - Leq = 55 dB(A) - established by the municipal laws No 10.625 of the city of Curitiba. The Leq = 45 dB (A) which is the limit for the night period also are exceeded during the passage of trains. The residents reported feeling affected by the noise generated by passing trains, which causes irritability, headaches, poor concentration and insomnia, and 88% of them claimed that nocturnal noise pollution is the most distressing. This study showed that the vast majority of residents surveyed, (69%) believe that the noise of the train can devalue their property.
ResumoO presente estudo apresenta a avaliação do impacto sonoro gerado na Linha Verde trecho sul. Para realização deste estudo, foram efetuadas medições em 24 pontos em uma extensão total de 14 km -a partir do Contorno Sul até o Jardim Botânico. A partir de todas as informações obtidas neste estudo concluiu-se que o tráfego de veículos na Linha Verde -Trecho Sul produz um impacto ambiental que resulta em níveis de poluição sonora inadequados para as pessoas que vivem ou trabalham em torno desta via. O nível de ruído para todos os 24 pontos analisados está acima dos valores aceitos pela lei municipal de Curitiba 10.625:02, ou seja, está acima de 65 dB(A) no período diurno. Através do estudo observou-se que a geração de ruído no local é constante e intensa, sendo o ruído fundamentalmente gerado pelo fluxo intenso de veículos leves (carros de passeio, utilitários e motocicletas) e veículos pesados (caminhões, ônibus). Os mapas acústicos mostraram ser uma ferramenta
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