APPLICATION OF ACOUSTIC MODEL TO TRAFFIC NOISE MAPPING – A CASE STUDY

Pawel Komorski; Grzegorz Marek Szymanski

Pawel Komorski Poznan University of Technology, Faculty of Machines and Transport
Grzegorz Marek Szymanski Poznan University of Technology, Faculty of Machines and Transport

Keywords: road and rail noise measurement, traffic noise map

Abstract

Nowadays traffic noise in large urban areas became serious problem, especially for inhabitants and their life comfort. It is well founded to accurately identify the sound sources and their impact to environment. Therefore plenty of acoustic models allow to calculate the distribution and prediction of sound pressure levels. Unfortunately many of them do not have the required calculation accuracy in different conditions.

In the article is presented the comparison of the traffic noise modelling and measurement on the selected area of Poznan City (Poland). The LimA software was used to elaborate several acoustic maps, with different input parameters of model. The traffic noise measurement was performed during day time. Differences are shown and analyzed. Also one of the solution to reduce traffic noise was proposed.

Key words:
road and rail noise measurement, traffic noise map