Planimetric Map

http://www.texasfreeway.com/houston/historic/road_maps/houston_road_maps.shtml

This is an example of a planimetric map. This is a road map of the Gulf Freeway in Houston Texas. It takes a three dimensional map and draws it on a two dimensional surface. This map illustrates activity taking place in this area. This shows and labels the roads in the city of Houston and allows drivers to navigate through the city that maybe they have never visited before. This map probably uses a coordinates system and uses symbolism to differentiate between land and bodies of water as well as the roads. The red grid either demonstrates townships or latitude and longitudinal lines. Usually small scale maps and road maps are illustrated using the Lambert conformal conic projection.