Less commonly, elevation is measured using the center of the Earth as the reference point. Due to equatorial bulge, there is debate whether the summits of Mt. Everest or Chimborazo are at the higher elevation, as the Chimborazo summit is further from the Earth's center while the Mt. Everest summit is higher above mean sea level.
In a Geographic Information System (GIS), digital elevation models (DEM) are commonly used to represent the surface (topography) of a place, through a raster (grid) dataset of elevations. Digital terrain models are another way to represent terrain in GIS.
Effect of Super-Elevation on Vertical and Lateral Wheel Forces: Using Data Collected at a Test Site in West Virginia, Norfolk Southern and TTCI Measured the Effect Elevation Change Had on Rail Forces
Nov 01, 2012; Super-elevation is the height, in inches, that the outside rail of a curve is elevated above the inside rail. It is...