I'm not sure that it is possible from a system point of view. When I look at what is carried across Canada and the routes that those products have to travel over, I'm not sure that it is possible to avoid every urban area. We would rather see a more systemic approach that would have those older cars phased out so that the cars that do go through all of our communities will be safer.
On April 1st, 2014. See this statement in context.