I can't comment on the specific ratio. What I can tell you from our preliminary 2018 statistics, when we look at the number of occurrences in the rail mode, is that there were 1,468 occurrences reported to the TSB in 2018, which included 1,173 rail accidents. That's all types of accidents: derailments, collisions and so on.
When we look at pipelines, we had a total of 110 occurrences reported to us, including one accident. So there is a definite difference in terms of the number of occurrences that are reported to us, recognizing that we only do federally regulated pipelines. Secondly, we have no outstanding pipeline recommendation. Pipelines are not on our watchlist, but there are a number of anecdotal things that can be used to suggest, or to indicate, relative issues between the modes.
The issue that I think we also have to keep in mind is that if there is a pipeline spill—and depending on whether it is carrying crude oil or gas—the consequences can be quite significant in terms of the amount spilled compared to the amount carried in a unit train of, say, crude oil. I use the example of the October 2018 occurrence that we're investigating north of Prince George, which involved the rupture and fire of a natural gas pipeline.
If you talk frequency, there are more rail occurrences reported than pipeline, but then you also have to look at the consequences in terms of how much is spilled, what is spilled and where it spilled.