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Per garantire la protezione dall'inquinamento fonico sulle strade nazionali l'Ufficio federale delle strade (USTRA) prevede di investire in tutta la Svizzera altri 1,3 miliardi di franchi entro il 2030, oltre ai 2,8 miliardi già spesi sino ad oggi, ed una parte di questi fondi sono destinati al Ticino.
A Bellinzona, in particolare, per il periodo 2015-2018, si prevede il risanamento di 32 km di strade nazionali, su un totale di 58km, per costi stimati in 57 milioni di franchi. Dopo il 2018 rimangono da riammodernare 26 km.
Proprio oggi, martedì, scade il termine per il primo risanamento acustico delle strade nazionali previsto dall'ordinanza contro l'inquinamento fonico. I lavori sin qui eseguiti hanno interessato il 90% della rete viaria (1'650 km).
L'USTRA giustifica i maggiori costi con il continuo aumento del traffico, si legge in un comunicato odierno.
ats/joe.p.
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