The implementation of High-Speed Rail in Canada is necessarily subject to politics. Canada is the most decentralized federal state in the world. This has had a major impact on inter-provincial trade, which is still shackled by prohibitions such as restrictions on carrying alcoholic beverages across provincial borders despite Section 121 of Canada's Constitution Act, 1867, which says, “All Articles of the Growth, Produce, or Manufacture of any one of the Provinces shall, from and after the Union, be admitted free into each of the other Provinces.”
Also Canada is the only country in the world which does not have a national highway system, an accidental result of the fact that in 1867 all long distance travel was by railway and roads were only used to get people to and from the railroad.
For the deployment of High-Speed Rail in Canada the central issue is that there is only one route where economic factors clearly justify implementation, based upon density of population, the Windsor to Quebec City corridor. But implementing High-Speed Rail for the benefit of just two provinces is politically insupportable. The other eight provinces will demand either an equivalent deal or compensation equivalent to the $30 million per km construction cost of HSR.