A low-height acoustic screen in a setting with an urban road: measured and predicted insertion loss
Paper in proceedings, 2016

A low screen was temporarily installed alongside an urban road to test the acoustic performance. Within the on-going project, the screen is an acoustic prototype, whereas later, a screen design will be developed considering also perceived acoustic quality and visual aspects. The current acoustic prototype, built up from concrete modules, was placed beside a small park on the reservation between a two-lane road and a track for walking and cycling. A larger traffic system, of which the two-lane road is a part, determines the daytime equivalent noise level within the urban area. The screen height was about 1.3 m as measured from the level of the road surface and the width of the screen top was 0.3 m. Measurements were carried out both at 20 m distance from the road (within the park) and at 5 m distance from the road (on the cycle track). Insertion loss in maximum level, using controlled light vehicle pass-by at 50 km/h, was measured to 10 dB and 6 dB at 5 and 20 m distance, respectively, at 1.5 m height. The measured results have been compared with those predicted by both a noise mapping software and a boundary element method, showing reasonable agreement.

Author

Jens Forssén

Chalmers, Civil and Environmental Engineering, Applied Acoustics, Vibroacoustics

Laura Estévez Mauriz

Chalmers, Civil and Environmental Engineering, Applied Acoustics

Clas Torehammar

Tyréns AB

Philippe Jean

Centre Scientifique et Technique du Bâtiment (CSTB)

INTER-NOISE 2016, 45th International Congress and Exposition on Noise Control Engineering.

6435-6443

Areas of Advance

Transport

Building Futures (2010-2018)

Subject Categories

Other Civil Engineering

ISBN

978-3-939296-11-9

More information

Latest update

11/21/2018