Key facts
The Confederation contributes to the costs of the cantons for noise abatement and protection in the road sector. Global contributions are paid for main roads (a total of CHF 180 million per year, not only for noise abatement), while financial aid for other roads (approx. CHF 25 million per year) is regulated in programme agreements. The Swiss Federal Audit Office (SFAO) examined the Federal Office for the Environment’s (FOEN) management and supervision in this area.