{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"Dart+26-IRF","datum":{"type":"GeodeticReferenceFrame","name":"Dart+26 Intermediate Reference Frame","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"}]},"scope":"Engineering survey and topographic mapping for railway applications.","area":"Ireland - on or related to the DART+ rail project from Dublin city centre to Drogheda, Greystones, Hazelhatch and Kilcock.","bbox":{"south_latitude":53.1,"west_longitude":-6.75,"north_latitude":53.8,"east_longitude":-6},"id":{"authority":"EPSG","code":11461},"remarks":"Intermediate CRS created in 2026 to assist the emulation of the ETRS89 / Dart+26 SnakeGrid projected CRS through transformation ETRS89-IRE [ETRF2000] to Dart+26-IRF (1) (code 11462) used in conjunction with the Dart+26-TM map projection (code 11463)."}