The City Born Great is N. K. Jemisin's entry in the Hugo short story category, though it's nearly a novella in length. Our protagonist is a homeless man, first seen ululating at the city of New York. In general. Is he a madman, or clued in on its future? Pretty quickly we find out the latter--he is chosen to bring the city to birth. This will not be at all easy or safe.
Along the way we get a take on our current relationship between blacks and cops. But the intent of the story seems to be to show someone deeply in love with his city, knowing it in a way others do not. Not the first of these I have read, and New York is often a focus (see James Blish's Cities in Flight series--this story reminded me of these, if only for the setting). It's enjoyable and a fine entry for the short story award. 3 stars from me.