It is clear that different measures must be taken when dealing with dangerous goods, but fatigue can manifest regardless of what the train is transporting. It is just that the consequences of an accident can be more significant when dangerous goods are involved.
The TSB issued a number of recommendations following the Lac-Mégantic incident, and even prior to it, in order to mitigate the risks associated with transporting dangerous goods. Transport Canada has also adopted many measures since those events to reduce the risk, but the systems still involve risks. We continue to monitor the situation and issue recommendations.