Moisheh:
...my specialization is in spatial (geographic) analysis. Geospatial analytics. This can entail analyzing epidemiological data geospatially; all the way to aerially collected hyperspectral analysis of Earth surface mineral deposits. To the best location to build a new Walmart supercenter. Traffic network analysis (road system vehicle routing problem solving)...etc.
There isn't anything to be said about Canadian west/east/west interstate roadways, but be have the old stand-by: railroads LOL. Look at the US interstate system: I-10, I-20, I-40, I-70, I-80, I-90 (all west/east/west). Then add all the north/south US interstates. I-15, I-25, I-35, I-55 etc...Canada's population is about ~11.5% that of the US presently, but they (the US) have just under 48,000 miles of interstate system; compared to Canada's one single Trans Canada highway....and that is not even a divided multi-lane freeway for most of its length....IN 2021! The main Trans Canada artery coast-to-coast is only 4645 miles. A few short "real" divided freeways exist linking large cities in all 10 Provinces to US interstates...but their length is very short, reflecting the fact that 90% + of Canadians live within 100 miles of the US border. Train lines (and a few logging truck routes) exist to move raw oil, ore, trees (for later cutting into lumber) southward.
Imagine how expensive it is to move a 20 foot container-load of Chinese-made T-shirts or running shoes in port at Vancouver, shipped by road, all the way to Quebec and Maritimes, thousands of miles ? Walmart USA (metaphor for all consumables) ships all this stuff to Canada's Walmarts, straight up from south to north....not across Canada Vancouver to Quebec.
Anyhow, this is a long-winded post showing how, without the US, Canada couldn't function as tiny "island economies" each separated latitudinally by ~600 miles of nothing, functioning but as a hewer of wood, and pumper of oil (notwithstanding post-industrial era Canada's finance, real estate and insurance industries, and the IT companies providing the contracted back-office processing). This will be very contentious among Canadians, but maybe better to have 4 countries (BC+Alberta; Central West; Ontario; Quebec+Maritimes), each with their own trade deal with the US, with Euro-zone like free unimpeded migration (ie. no border with the US for Canadians, and visa-versa for US nationals), and a health care system modeled after the UK's. Today, all our Provinces compete against each other (Canada has a "free trade agreement" with ITSELF, did you know? The C-FTA Canada free trade agreement, as of July 2017) Imagine??
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