>>2063620The point of a tram is that it's *not* grade separated, hence needing much less intrusive and cheaper infrastructure.
Monorail is basically just "elevated tram", maybe it's cheaper than metro but it's more expensive than a tram and much more intrusive. You need an elevated infrastructure and bulky stations which may not fit the purpose.
>>2063687Monorails only work well in somewhat specific situations
>difficult to fit in a tram but can fit elevated structure>relatively simple and isolated system with just one line or few branchings>demand between bus and metroIn the case of Japan they don't always have large thoroughfares and urbanism is generally cramped, at the same time they show surprising receptiveness to intrusive infrastructure and somewhat chaotic (in a good way) urbanism, they don't seem to mind these things as much as in the west. So it's more likely to be a good fit for over there.