foot
Engineering survey and topographic mapping for railway applications.
None
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.
Data Source: EPSG v11.016 2024-08-31
Datum: NAD83 (National Spatial Reference System 2011)
Coordinate System: cartesian
Projection: Amtrak North East Corridor Coordinate System 2021 (international foot)
Geodetic CRS: NAD83(2011)
PROJCRS["NAD83(2011) / Amtrak NECCS21 (ft)",
BASEGEOGCRS["NAD83(2011)",
DATUM["NAD83 (National Spatial Reference System 2011)",
ELLIPSOID["GRS 1980",6378137,298.257222101,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",6318]],
CONVERSION["Amtrak North East Corridor Coordinate System 2021 (international foot)",
METHOD["Hotine Oblique Mercator (variant B)",
ID["EPSG",9815]],
PARAMETER["Latitude of projection centre",40.8333333333333,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8811]],
PARAMETER["Longitude of projection centre",-74,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8812]],
PARAMETER["Azimuth at projection centre",58,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8813]],
PARAMETER["Angle from Rectified to Skew Grid",58,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8814]],
PARAMETER["Scale factor at projection centre",0.99999,
SCALEUNIT["unity",1],
ID["EPSG",8815]],
PARAMETER["Easting at projection centre",1500000,
LENGTHUNIT["foot",0.3048],
ID["EPSG",8816]],
PARAMETER["Northing at projection centre",1500000,
LENGTHUNIT["foot",0.3048],
ID["EPSG",8817]]],
CS[Cartesian,2],
AXIS["easting (X)",east,
ORDER[1],
LENGTHUNIT["foot",0.3048]],
AXIS["northing (Y)",north,
ORDER[2],
LENGTHUNIT["foot",0.3048]],
USAGE[
SCOPE["Engineering survey and topographic mapping for railway applications."],
AREA["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."],
BBOX[38.64,-78.51,42.74,-70.48]],
ID["EPSG",20050]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "NAD83(2011) / Amtrak NECCS21 (ft)",
"base_crs": {
"name": "NAD83(2011)",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "NAD83 (National Spatial Reference System 2011)",
"ellipsoid": {
"name": "GRS 1980",
"semi_major_axis": 6378137,
"inverse_flattening": 298.257222101
}
},
"coordinate_system": {
"subtype": "ellipsoidal",
"axis": [
{
"name": "Geodetic latitude",
"abbreviation": "Lat",
"direction": "north",
"unit": "degree"
},
{
"name": "Geodetic longitude",
"abbreviation": "Lon",
"direction": "east",
"unit": "degree"
}
]
},
"id": {
"authority": "EPSG",
"code": 6318
}
},
"conversion": {
"name": "Amtrak North East Corridor Coordinate System 2021 (international foot)",
"method": {
"name": "Hotine Oblique Mercator (variant B)",
"id": {
"authority": "EPSG",
"code": 9815
}
},
"parameters": [
{
"name": "Latitude of projection centre",
"value": 40.8333333333333,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8811
}
},
{
"name": "Longitude of projection centre",
"value": -74,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8812
}
},
{
"name": "Azimuth at projection centre",
"value": 58,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8813
}
},
{
"name": "Angle from Rectified to Skew Grid",
"value": 58,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8814
}
},
{
"name": "Scale factor at projection centre",
"value": 0.99999,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8815
}
},
{
"name": "Easting at projection centre",
"value": 1500000,
"unit": {
"type": "LinearUnit",
"name": "foot",
"conversion_factor": 0.3048
},
"id": {
"authority": "EPSG",
"code": 8816
}
},
{
"name": "Northing at projection centre",
"value": 1500000,
"unit": {
"type": "LinearUnit",
"name": "foot",
"conversion_factor": 0.3048
},
"id": {
"authority": "EPSG",
"code": 8817
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "X",
"direction": "east",
"unit": {
"type": "LinearUnit",
"name": "foot",
"conversion_factor": 0.3048
}
},
{
"name": "Northing",
"abbreviation": "Y",
"direction": "north",
"unit": {
"type": "LinearUnit",
"name": "foot",
"conversion_factor": 0.3048
}
}
]
},
"scope": "Engineering survey and topographic mapping for railway applications.",
"area": "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.",
"bbox": {
"south_latitude": 38.64,
"west_longitude": -78.51,
"north_latitude": 42.74,
"east_longitude": -70.48
},
"id": {
"authority": "EPSG",
"code": 20050
}
}
{'azimuth_of_central_line': 58.0,
'crs_wkt': 'PROJCRS["NAD83(2011) / Amtrak NECCS21 '
'(ft)",BASEGEOGCRS["NAD83(2011)",DATUM["NAD83 (National Spatial '
'Reference System 2011)",ELLIPSOID["GRS '
'1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",6318]],CONVERSION["Amtrak '
'North East Corridor Coordinate System 2021 (international '
'foot)",METHOD["Hotine Oblique Mercator (variant '
'B)",ID["EPSG",9815]],PARAMETER["Latitude of projection '
'centre",40.8333333333333,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8811]],PARAMETER["Longitude '
'of projection '
'centre",-74,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8812]],PARAMETER["Azimuth '
'at projection '
'centre",58,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8813]],PARAMETER["Angle '
'from Rectified to Skew '
'Grid",58,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8814]],PARAMETER["Scale '
'factor at projection '
'centre",0.99999,SCALEUNIT["unity",1],ID["EPSG",8815]],PARAMETER["Easting '
'at projection '
'centre",1500000,LENGTHUNIT["foot",0.3048],ID["EPSG",8816]],PARAMETER["Northing '
'at projection '
'centre",1500000,LENGTHUNIT["foot",0.3048],ID["EPSG",8817]]],CS[Cartesian,2],AXIS["easting '
'(X)",east,ORDER[1],LENGTHUNIT["foot",0.3048]],AXIS["northing '
'(Y)",north,ORDER[2],LENGTHUNIT["foot",0.3048]],USAGE[SCOPE["Engineering '
'survey and topographic mapping for railway '
'applications."],AREA["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."],BBOX[38.64,-78.51,42.74,-70.48]],ID["EPSG",20050]]',
'false_easting': 1500000.0,
'false_northing': 1500000.0,
'geographic_crs_name': 'NAD83(2011)',
'grid_mapping_name': 'oblique_mercator',
'horizontal_datum_name': 'NAD83 (National Spatial Reference System 2011)',
'inverse_flattening': 298.257222101,
'latitude_of_projection_origin': 40.833333333333336,
'longitude_of_prime_meridian': 0.0,
'longitude_of_projection_origin': -74.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'NAD83(2011) / Amtrak NECCS21 (ft)',
'reference_ellipsoid_name': 'GRS 1980',
'scale_factor_at_projection_origin': 0.99999,
'semi_major_axis': 6378137.0,
'semi_minor_axis': 6356752.314140356}