Innovative noise remediation
To expand our portfolio of noise remediation measures, we, together with BMVI, have launched the new and application-oriented noise control trials initiative (Initiative Lärmschutzerprobung neu und anwendungsorientiert; I-LENA) as part of the Future Capital Expenditure Program (Zukunftsinvestitionsprogramm; ZIP). Under this program, about 30 innovative products for noise protection no. 43 will be tested on the infrastructure under real-world conditions over the next two years. These include new types of sound barriers and innovative technologies to reduce rolling noise at the source through improved rail grinding and rail damping. I-LENA no. 54 also focuses on sound insulation technologies for particular “hotspots” where there is loud squeaking in curves, construction noise or annoying rumbling when crossing railway bridges. In the year under review, this began with six measures on two test lines. Technologies to reduce cornering squeals, rail dampers and shieldings as well as a miniature noise barrier, are currently being tested.