Published on 6 May 2025

Noise abatement

The Swiss government has invested several billion francs to protect the population from excessive railway noise. Measures include noise barriers, soundproof windows and low-noise rolling stock.

Noise barriers are just one of the noise abatement measures on the railway network — © SBB

The Confederation has – very early on compared to other countries – taken measures to maintain or improve the quality of life of people who live alongside the key transport routes. An initial programme of noise abatement on the railways was put together at the turn of the millennium, with Parliament providing CHF 1.854 billion. Under this programme, Swiss rolling stock in both passenger and goods traffic was completely remediated by 2016, and about 276 km of noise barriers were built and more than 70,000 sound-insulating windows installed.

As early as 2013 Parliament decided to finance a follow-up programme. A total of CHF 1.515 billion (pricing basis Oct. 1998) was earmarked.

The most important measure in this second package is the introduction of a binding emission threshold for goods wagons – including those belonging to foreign wagon keepers. Since 2020, noisy wagons with grey cast iron brakes may not run on track in Switzerland. Further elements of the second noise abatement package are grants for the purchase and operation of particularly quiet goods wagons, and strengthening research federal on railway noise.