Permit me to answer, if I could. We don't build hangars everywhere. Hangars are like dry docks. You have a few of them located strategically around the country, and one hangar would serve 25 airships or more.
Going out to the community, most of the time the airships live in the sky. Some of them will need masts, which are relatively inexpensive. They need a cleared area, and in some of the designs they need no mast whatsoever, so the infrastructure cost is very low.
You would need a few hangars in a few places, that's true, but not in every community by any stretch of the imagination.
Let me follow up on the roads issue. While it is true that building roads with mining companies and others associated is a solution for some locations, it's not a solution for every community. In Manitoba alone we build 2,000 kilometres of ice roads every year, so to convert those to gravel roads at roughly a million dollars a kilometre would be $2 billion just for Manitoba, and more like $3 billion for Ontario. That wouldn't solve the problem farther north.
Beyond that, there is the issue of permafrost. Some of our existing infrastructure in the north is threatened right now. As the permafrost melts you get places where sinkholes are showing up on runways and on all-weather roads that exist in the north. The roads are not necessarily a solution.