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DYNA

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Abstract

JARAMILLO, ANA; GONZALEZ, ALICE; BETANCUR, CATALINA  and  CORREA, MAURICIO. COMPARATIVE STUDY BETWEEN URBAN MEASUREMENT ENVIRONMENTAL NOISE AT HEIGTH 1,5 m AND 4 m IN MEDELLÍN, ANTIOQUIA - COLOMBIA. Dyna rev.fac.nac.minas [online]. 2009, vol.76, n.157, pp.71-79. ISSN 0012-7353.

Since Resolution 0627 has been brought into force in 2006, regulating a height of 4 m for measurements of environmental noise, urban noise management policies in Colombia have taken a new course. However, a controversy has arisen involving government officers, academics and professionals as regards economic, logistic and operational implications for the fieldwork. With the objective of assessing whether there is or not a statistically significant difference between urban environmental noise measurements at 1,5 m and 4 m above the floor, a statistical analysis of a large amount of data gathered during the development of the noise map of Medellin, data have been grouped according to measurement site, time of day (daytime and nighttime) and type of day (working and weekend). It is not possible to affirm the noise samples taken at 1,5 m and 4 m above the floor are similar, not only by the numerical differences, but they represent different noise landscapes.

Keywords : Environmental noise; noise pollution; acoustic measurement at 1,5m and 4m; Resolution 0627 of 2006; statistical analysis.

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