{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeodeticCRS","name":"LTF2004(G)","datum":{"type":"GeodeticReferenceFrame","name":"Lyon Turin Ferroviaire 2004","ellipsoid":{"name":"GRS 1980","semi_major_axis":6378137,"inverse_flattening":298.257222101}},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Geocentric X","abbreviation":"X","direction":"geocentricX","unit":"metre"},{"name":"Geocentric Y","abbreviation":"Y","direction":"geocentricY","unit":"metre"},{"name":"Geocentric Z","abbreviation":"Z","direction":"geocentricZ","unit":"metre"}]},"scope":"Engineering survey and mapping for the Trans-Europe Lyon-Turin (TELT) railway project.","area":"France and Italy - on or related to the rail route from Lyon to Turin.","bbox":{"south_latitude":44.87,"west_longitude":4.65,"north_latitude":45.89,"east_longitude":7.88},"id":{"authority":"EPSG","code":9545}}