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Di: TG/GM
Per lottare contro l’inquinamento fonico, da due anni il Municipio di Losanna ha introdotto il limite di 30 km/h in due strade del centro durante la notte. Una fase test che sta dando i suoi frutti: il rumore percepito dai cittadini è dimezzato. A una riduzione di 20 km/h corrisponde infatti un calo di 3 decibel.
Nella Svizzera tedesca questa soluzione ha già preso piede in diverse città e paesi. Più restii i comuni della Romandia e della Svizzera italiana.
A livello federale, due interpellanze sono nel frattempo state depositate al Consiglio degli Stati affinché si valuti l’introduzione di nuove regole. Il Consiglio federale ha però ribadito in passato che la competenza per questo genere di misure compete in particolare a Cantoni e Comuni.
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