Those alternatives would require siting permits and construction. Those alternatives are less safe than a pipeline and much more costly than a pipeline.
Over time, you can replace Line 5 and Line 9 into the province of Quebec, but it will be much more costly for consumers, and an immediate shutdown would obviously cause energy scarcity, as I mentioned in my prior remarks. Ontario is in a tougher position, because it doesn't have water access to crude oil like Quebec does. Ontario would be like Michigan, effectively, where rail and truck would have to take up the slack for the pipeline.