Abstract
The paper reviews the progress made during the research project "Low Emission Railway System (LERM)" funded by the German Ministry of Education and Research. The construction of test tracks and in-situ measurements of air-borne and ground-borne sound emission is carried out together with partners from academics (IASP at Humboldt University, Berlin), industry (Edilon, Munich) and from railway infrastructure operators (City of Munich). Modelling of the acoustic properties of ballast track and slab track superstructures is carried out at the University of Karlsruhe.
