It’s one of the most common map projections today. It’s the Universal Transverse Mercator (UTM) projection! How Universal Transverse Mercator (UTM) works Then, peel it like an orange evenly into sixty segments called “zones”.įinally, flatten each one of these zones. Start with a sphere or ellipsoid because that is the true form of the Earth. Universal Transverse Mercator (UTM) Projection