Le imbarcazioni della Società di navigazione del Lago di Zurigo, dalla scorsa settimana, non possono più segnalare incondizionatamente l'arrivo e la partenza suonando brevemente la sirena. A dirlo è l'Ufficio federale dei trasporti.
A seguito di una lamentela avanzata da un abitante, disturbato dal rumore emesso, la segnalazione acustica è ora tollerata solo in caso di pericolo. La compagnia che gestisce i battelli per il trasporto di passeggeri ha dovuto dunque abbandonare una tradizione che durava da cinquant'anni.
Sui laghi svizzeri questa pratica è consentita solo se vi è una ragione concreta legata alla sicurezza, specifica l'ufficio competente, precisando che "a ogni situazione corrisponde un segnale specifico".
ATS/APe
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