GEODCRS["Xrail84",DATUM["Xrail84",ELLIPSOID["WGS 84",6378137,298.257223563,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[Cartesian,3],AXIS["(X)",geocentricX,ORDER[1],LENGTHUNIT["metre",1]],AXIS["(Y)",geocentricY,ORDER[2],LENGTHUNIT["metre",1]],AXIS["(Z)",geocentricZ,ORDER[3],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey and topographic mapping for transport applications."],AREA["United Kingdom (UK) - Greater London and surrounding area."],BBOX[51.1,-1.33,52,0.8]],ID["EPSG",10991]]