Question juridique clé
Whether the cantonal noise-remediation project could be approved without examining a 30 km/h speed limit
Solution extraite
No. A speed reduction to 30 km/h on the affected main-road section was not excluded in principle and had first to be examined by an expert report.
Motifs extraits
Under the SVG and SSV, speed reductions may be ordered for overburdened roads and for excessive environmental noise. Before relying on mitigation exemptions, the authority had to assess whether a lower speed limit could materially reduce noise and whether it would be proportionate.