"No Tav": Turin-Lyon train line

Certainly lots of environmental issues are more significant than the high-speed rail line between Turin, in Italy, and Lyon, in France.  But an article on the project in today's Corriere della sera caught my eye.  I have a personal interest in the line having once followed the route on a train from Milan to Paris.  I'd paid for a ticket on a high-speed train, but in fact very little of it was high-speed until after we passed through the mountains and got into France.

For years, the French and Italian rail companies, backed by political authorities, have wanted to modernize the rail connection between the two cities.  The most dramatic engineering feature of the line is a planned 57 km long tunnel from the Susa Valley in Italy to the Maurienne Valley in France.  (Several famous Tour de France climbs, like the Col du Télégraphe, the Col du Croix de Fer, and the Col de la Madeleine, rise out of the Maurienne Valley.)

Environmentalists in both countries oppose the line out of concern, among others, for its impact on a fragile alpine ecology.  Questions have also been raised, especially in France, about its costs.  Lately, in Italy, elements of the "No Tav" ("Treno alta velocità") opposition has become violent.  The article in Corriere della Sera reported what is counted as the 15th incident of sabotage against the line.  Yesterday, while workers were off for lunch, someone entered a worksite at Bussoleno in the Susa  Valley and set fire to a piece of heavy equipment.  Bussoleno is about 50 km west of Turin.

This kind of violence is never acceptable opposition. It's dangerous and extortionist and those found responsible deserve serious judicial sanction, never mind their motives.  Still, I'm not sure yet where I stand on the matter of the line itself.  Will it, in fact, cause environmental harm?  I've visited the Maurienne Valley and it is not an isolated alpine environment, at least down along the highway running along the Arc River.  And that highway, as I rode my bike next to it, seemed to be carrying quite a bit of truck traffic.  Wouldn't that freight travel with a lot less pollution on a train?