Mr. McSweeney, I've noticed that autoroute 40 in Montreal has been resurfaced, mostly with concrete. Concrete is supposed to be more resistant and to last longer.
Some of the witnesses have said that concerns over the tracks have to do with our climate, in particular our cold weather. Will the concrete react as well in cold weather? Has its performance already been analysed elsewhere? Japan's climate is different from ours. Has concrete been tested under extremely cold conditions, or is that not a problem?