I read the U.S. National Transportation Safety Board recommendation dated January 23, and yours is similar:
Rail carrier[s]...must annually analyze the safety and security risks for the transportation routes to include 27 risk factors, such as the volume,...track type, class,...maintenance schedule...curvature, environmentally sensitive or significant areas; population density along the route; emergency response capability...; areas of high consequence along the route.... [They] must identify alternative routes over which it has authority to operate and perform a safety and security risk assessment of those routes for comparison.
Then the FRA, the Federal Railroad Administration, analyzes those risk analyses and determines whether or not they need to be revised, whether in fact they are the safest opportunities.
We don't do that in Canada, do we?