Make ONT or LGB a hub.
LGB is a hub with B6 connecting to HA, but it's got limited connections & B6's two biggest hubs are served by HA daily non-stop before the event, which means no.
HA does one thing very well, well several things, but for my point, this is the business "taking people to/from those beautiful Islands" this they know & do a good enough job in most markets they command a premium. HA by means of survival could not, nor would their BOD allow such a venture. I bet Hawaii is going to continue with quarantines until they can breathe safely.
The one think I want for the four main islands are level 4 or better trauma hospitals, but there would never be enough bed rooms built & Hawaii would be overwhelmed. Too much packed in together on Oahu
and other than climate? Honolulu and New York, Chicago, Philadelphia, Atlanta and Los Angeles are different How in Density? You're not making a real good argument here. HA could expend without a doubt and it's not like they shouldn't. The Matter is? the Airplanes and the route structure on the mainland. . They could also form alliances with carriers like B6, and F9, as that would give them petty much an instant Network and give the other 2 carriers access to Asia and possibly Europe as HA will now have B787's with Longhaul capability. It would be a win-win for all of them until HA can do it on their own.
in the time I lived there, in the late 90's granted 20 years ago & the couple of acres on Kauai & decades of trips over, there have been multiple discussions on Hawaii's ability to medically handle a widespread pandemic, or large scale crash of two large aircraft, or (name the tragic situation here).
Hawaii flat out does not have the capacity to heal at this rate, & with a sudden influx, hospitals that can handle even a heart attack existon on Oahu & Maui only, others are medivaced out, if stable to fly.
While Oahu also has the Army's Tripler Hospital, even the generous (population wise) rooms Oahu has, are not capable of the extreme explosion this could bring.
It is likely killing businesses & that crushes me, I think of the poor, the homeless & the massive amounts of unemployment. Even if they opened up in a week, to the Hawaiians, they are getting the first taste of what limited tourism could look like. I doubt it's their biggest rush.
To try & answer your question, if you consider the densest parts only, of course the density is relatively similar in that all have multiple high rise options in the highest densities. But hospitals are built based on population of the metro areas served, for instance in Chicago, hospitals that serve the area, are not just in Chicago, but in the suburbs. That in fact applies to Atlanta, Los Angeles & NYC.
So yes indeed, my point makes sense, it also is why Hawaii has been as cautious as they have been. No one should expect them to be anything but cautious, the last diseases washing up on their shores, wiped out swaths off their ancestors.
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