That's an interesting question. A very short answer is no, there is no constraining capacity problem that would cause a short-term loss in market share. I would say there isn't even a long-term capacity problem, but there are things that need to be done to maintain the capacity.
One of the outstanding things that happened in the last few years is that CN and CP agreed to share the two tracks that run between Kamloops and Vancouver. Railway research takes a long time to happen. We worked on that more than twenty years ago and saw it as being a very positive thing, but it took that long for the railways to finally come to the point where the capacity on those two single-track lines had reached a tough decision point on how much capital would have to be spent to maintain the growth in traffic, and here was an easy solution: to share the track. That gave them an increase of somewhere between 200% and 400% in capacity.
There are lots of things such as that that the railways are doing elsewhere. They're running longer trains. In the mountains, they've been running radio-controlled locomotives in the middle of the train to allow a longer train to operate, and they're using those in more areas than before. There are many things of that kind.
Freight car weights have been increased from 263,000 pounds to 284,000 pounds, with no change in the rest of the car. This does require some strengthening of a few bridges on branch lines that were not originally built for those kinds of loads.
So there's a lot of flexibility in things that are being done that essentially keep the capacity ahead of the demand.