I will begin to answer the question and will then pass it on to my colleague.
It is hard to say whether CN's response time could have been better. Rather than the response itself, I think the issue is that there is usually no need to respond.
Given the protocols we have in place for our own infrastructure, we believe that at no time during that storm was VIA Rail's infrastructure unavailable for rail traffic.
Perhaps Michael can deal with the proactive steps we have taken to weatherproof our own infrastructure in order to enable our trains to continue to operate.