La chiusura della galleria autostradale del San Gottardo per lavori di risanamento (quindi in caso di bocciatura del raddoppio) comporterebbe un massiccio spostamento del traffico pesante su valichi alternativi. Al San Bernardino sono previsti 20'000 camion supplementari all'anno, al Sempione 10'000 e al Gran San Bernardo 9’000.
I dati sono stati forniti dalla consigliera federale Doris Leuthard in risposta a una domanda di Thierry Burkart (PLR/AG). La titolare del DATEC ha giustificato il “travaso” di traffico con il fatto che la prevista autostrada viaggiante non permetterebbe di trasportare tutti i 900’000 camion che passano attraverso il San Gottardo.
Il servizio navetta non potrebbe trasportare più di 600'000 mezzi pesanti. Da notare che la Legge sul trasferimento del traffico merci (LTrasf) fissa un obiettivo di 650'000 transiti annui da raggiungere entro il 2018.
Secondo i dati dell'Ufficio federale delle strade, nel 2014 sono transitati 758’000 camion sotto il San Gottardo, mentre 151'000 hanno valicato il San Bernardino, 77'000 il Sempione e 45’000 il Gran San Bernardo.
Red.MM/ATS/Swing
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