Lower railway noise, and railway noise assessment by noise information system Deutsche Bahn AG's noise exposure cadastre

摘要

Railway noise is created between the rolling wheel and the rail. Freight trains with an influence on environmental noise are most disturbing at nighttime (22:00-06:00 h). Deutsche Bahn AG intends to reduce railway noise where it is created. Source-related measures could be a smooth rail surface (acoustic grinding) and a smooth wheel surface. Changing the brake system is one possible solution to reduce the noise level of freight trains passing by. In the current noise abatement programme on existing railway lines, the measures for noise reduction are noise barriers, noise-insulation windows and rail grinding.