List 3 characteristics of geocentric model of the solar system

Earth centered universe, everything else revolves around the earth, known as the old concept and understanding of the universe

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