Road Traffic Noise Propagation between Two Dimensional City Canyons using an Equivalent Sources Approach
The sound pressure level at courtyards from road traffic noise is difficult to predict using standardised methods. A simple model for a courtyard is a two dimensional city canyon, where a second canyon represents the street with vehicles. Here an equivalent sources approach is used to couple the canyons and the free half-space above them. The strengths of the virtual sources that couples the different domains can be determined by solving an equation system. After that the level can be calculated anywhere inside or outside the canyons. Unfortunately the method is rather computationally heavy, but less so than the standard boundary element method (BEM) or the finite difference – time domain method (FDTD). The method is verified against BEM in a simple case, and against full-scale measurements in the field. The comparisons show that the agreement is acceptable if sufficiently many streets are included as sources.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: March 1, 2004
More about this publication?
- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Information for Advertisers
- Online User License
- Ingenta Connect is not responsible for the content or availability of external websites