With assistance of Wikipedia and a very large search engine.
There is no correlation between what side of the road is driven on and what side of the escalator to stand on.
Stand on the right in London, Washington, Boston, Hong Kong (contradicted elsewhere), Seoul and Moscow.
Stand on the left in New Zealand, Australia and Singapore.
Montreal and Toronto, walking on escalators is prohibited.
Malaysia and Rome, stop walking when reaching the escalator and stand both sides.
I can now confidently travel the world knowing that I will not make an escalator faux pas. Of course, easier, follow what the locals do.