Thinking of the Sanborn fire maps I’ve been working with it could be useful to know how far fire hydrants are from buildings that could be susceptible to fires. So I think it could be done in a way where it shows buildings that are made out of wood or flammable materials and their distance from fire hydrants. It could highlight the need for hydrants in certain areas and could be farther away from areas with say stone or brick buildings. For me I thought of doing these with residential buildings and how many there are in relation to churches and other identified community centers to show the importance of these buildings as community anchors.
Nice additional example!