Well, according to the worlds brain (internet) the longest street in North America is Yonge Street.
Yonge Street (pronounced “young”) is a major arterial street in Toronto, Ontario, Canada, and its northern suburbs. It was formerly listed in the Guinness Book of Records as the longest street in the world at 1896 km, and is a national historic site.
These guys are crazy…
Therefore the idea of having a spiral street act like a single street is still impossible to beat Canada.