VibraSIG - Modeling railway structure-borne noise and vibrations and implementation in QGIS geographic information software

In the context of engineering studies for passenger rail line projects, a method for predicting vibration and structure-borne noise levels in buildings close to the line is needed on the scale of a town or territory. ACOUSTB has developed VibraSig, a method for calculating railway vibration and structure-borne noise, based on two numerical models (VibraFer, CSTB and MEFISSTO, CSTB). A numerical model in VibraFer is used to define a railway excitation source term. A numerical model in MEFISSTO is used to calculate the vibratory response of the tunnel and the ground up to the building on a cross-section. A statistical building response model is used to estimate structure-borne noise and floor vibration levels. Finally, the method for predicting vibration and structure-borne noise levels is extended to the entire project route, and the results are visualized for each building on a Geographic Information System (GIS).