Archives of Acoustics, 33, 2, pp. 185–199, 2008

Evaluation of transportation noise in urbanised areas. A case study

Alfredo CALIXTO
Laboratório de Acústica Ambiental - Industrial e Conforto Acústico Departamento de Engenharia Mecânica, Universidade Federal do Paraná, Centro Politécnico

Cristiane PULSIDES
Laboratório de Acústica Ambiental - Industrial e Conforto Acústico Departamento de Engenharia Mecânica, Universidade Federal do Paraná, Centro Politécnico

Paulo Henrique Trombetta ZANNIN
Laboratório de Acústica Ambiental - Industrial e Conforto Acústico Departamento de Engenharia Mecânica, Universidade Federal do Paraná, Centro Politécnico

The paper describes a study of noise emission levels by
roads inside an urban setting. For this purpose simultaneous measurements were
performed: a) noise levels Leq, L10 and L90, b) vehicle flow and c) traffic
composition. Vehicle flow and traffic composition have been used to estimate
sound emission levels using mathematical models. Models were developed for two
different situations, either as a function of a single variable (vehicle flow,
VF), or as a function of two variables (VF and percentage of heavy vehicles,
HV). Results of the prediction models agreed well with measured noise levels,
especially for the model considering the two independent variables, VF and HV.
Keywords: emission noise levels; road traffic noise; noise in urbanised areas; urban noise; environmental noise
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