Geocentric translations (geog2D domain)
For many purposes NAD83(2011) can be considered to be coincident with WGS 84. This approximation ignores the ~2.2m offset of NAD83 from the geocentre, the low accuracy of the WGS 84 ensemble and the application of tectonic plate motion to WGS 84 data.
NAD83 (National Spatial Reference System 2011)
Engineering survey and topographic mapping for railway applications.
United States (USA) - parts of Connecticut, Delaware, District of Columbia, Maryland, Massachusetts, New Jersey, New York, Pennsylvania, Rhode Island and Virginia on or related to the Amtrak northeast corridor rail route from Boston to Washington DC via New York and Philadelphia.
Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ft.