What animal has 32 brains?​

Leeches have 32 brains,,,

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it

Not only is it the purchase of about 40% of america, it also grounds to on-go our advancement as a civilization.