The thing that makes a wave a wave is that itfrom one place to another. A. Transport energy
B. Transports the medium
C. Travels with a vacuum
D. Carries Solids

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

Compound light microscope