What's meant by "lower Broadway"? Is there also an upper Broadway? Can we call it "south Broadway"?

Question

Here's the context, taken from "Ben Compton", "1919", "USA" by John Dos Passos:

Quote

He worked as a clerk in Stein's office on lower Broadway and in the evenings addressed protest meetings about the Everette massacre.

Answer 1

Its kind of vague, but "lower Broadway" would be in "lower Manhattan", IOW, the southern end of Manhattan Island, as in the Financial District, Greenwich Village, or Battery Park.

In New York, no one ever speaks of "south Manhattan" vs "northern Manhattan". its always "downtown" (south) or "uptown" (north).