what are the three uses of a map

You can map anything that occupies space (has a location and property). Their are groundwatermaps, temperature maps, maps of growing areas,vegetation maps, there are maps that show the locations of other maps!Road maps(how do I get to my rock outcrop!), bathemetric maps (water depth), land use maps, maps showing property ownership, political boundary maps, resource maps, maps used to navigate aircraft, flood maps, other probability maps, and weather maps. There are maps of the sky (start maps). There more types of maps than any of us can imagine.The maps all have specific uses, typically they answer the questions of "where is something", "how much is there of something", "How likely is something", "what is the distribution of something" etc.

General Reference - want to know where these places are we need a map. to find out 'where' places are in our world.Navigation, Control and Route Planning - Whether we move on land, at sea, or in the air we rely heavily on maps to plan our routes and to maintain our course. We have hiking and biking maps, maps for crawling through caves or orienteering through woods, highway and off road maps, as well as nautical and aeronautical charts. We have maps to show rapids in white water and fishing structure in lakes. We use these maps to plan our routes and then to navigate when we are in motion.Communication, persuasion and propaganda - Maps in newspapers accompanying an article or on TV with a report aid in telling the story. Under this category we might include maps that are used to route traffic in specific directions, maps employed to get people to register to vote, and a number of persons select map projections to convey a specific image; this is particularly true of the Peters projection which advances the argument that it is time for a new image of the world.Planning - Because 'where' is important, we use maps to determine where we want to do what. We turn to maps to determine where a communications tower should be located in terms of reception, visual impact, zoning and landuse restrictions. Urban and regional planning rely heavily on maps for the location of schools and public facilities, for the development of highway, sewer and water networks and for the orderly organization of space through zoning and other techniques..