There are two parts. We've established the regulations and we've done audits to ensure compliance. We're using the data from that activity to improve effectiveness.
There is a broader question, which is mapping the safety outcome. The safety management system is built on the principle that the operator has a key role and that their management is a key factor in safety outcomes, along with the regulations and standards of Transport Canada and the oversight of Transport Canada and the work of communities at grade crossings, and employees. There are many players and there are many factors in the safety outcome.
The work the Auditor General has asked us to do is to start to isolate those factors and to identify in some analytical and, if possible, quantitative manner how each specific factor of each element of the SMS and the other elements of the safety system contribute to improving performance to have lower accidents with higher volumes.
We are in the process of doing that. The fact that it is ongoing does not undermine the fact that the operators are accountable to a much more exacting standard in their safety management systems, and have been since 2015, and they're being rigorously audited on it. When they're coming up short, they are subject to enforcement measures from Transport Canada.