Noise mapping in area of an urban overpass

Abstract

The paper presents the concept of noise mapping in an urban area around major overpass in city of Kraljevo. The overpass is used by road traffic and is built over a railroad track. The height of the overpass is variable, with one end in the foot, and with the other end at the top of a hill. On one side of the overpass is the hill, which is covered by vegetation. On the other side of the overpass is residential area with houses and multi-floor buildings. The dominant source of the noise is the road traffic on the overpass, and the railroad traffic represents secondary source of the noise. Uneven terrain and presence of complex concrete structure of the overpass represent a challenge for the calculation of the noise field. The concept of calculation is performed according ISO 9613:2, using both commercial and proprietary software tools.