Avaliação do ruído do tráfego no entorno da sede Ecoville da Universidade Tecnológica Federal do Paraná

Abstract

Vehicle traffic is the main cause of noise in urban environment and brings a series of hazardous effects while deteriorates the acoustic quality of universities. With that in mind, the present work objective was to measure and analyze noise pressure levels generated by vehicles around the Ecoville campus of the Federal Technological University of Paraná (Universidade Tecnológica Federal do Paraná). Noise level measurements were made in 23 points. 19 of them were measured in external locations whilst 4 being measured inside the lot. Traffic around the university was the main source of this noise. Upon using the methodology explained by NBR 10151/00, equivalent continuous sound pressure level (LAeq), maximum level, and minimum level were measured, while also taking into account the number of light and heavy vehicles and motorcycles during 10 minutes per spot. Values were then compared against limits established by the World Health Organization (WHO), Curitiba’s city regulation 10625/02, NBR 10151/00, NR 15 and NR17 from the brazilian Ministry of Labor and Employment (Ministério do Trabalho e Emprego). A noise map was generated with the collected data, exhibiting noise levels to which the university’s buildings are exposed. The noise map was then compared with the one generated by Ansay (2013) for the same year. In conclusion, noise levels surpass the limits established, except the 85 dB (A) limit defined by the NR 15 for an 8-hour work journey, and noise levels do not seem to have increased over time, albeit consistently crossing regulations and recommendations.