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Stadt-Casino concert hall, Basel

Vibration and structure-borne sound caused by trams

In order to plan possible measures to protect the concert hall against structure-borne sound from passing trams, it was necessary first to identify which sections of tram track were the main source of vibration and noise. A vibrating roller was driven along Basel's Steinenberg to measure vibrations as a function of roller position to determine the area that had the greatest sound impact.
The spatial expansion of an elastic-mounted track supporting slab was subsequently established. The dynamic behavior of this slab could then be analyzed and optimized using the finite element method.