TY JOUR TI The methodology of collecting and analyzing heterogeneous geoinformation for solving problems of construction control at railway construction sites KW construction control KW aerial photography KW unmanned aerial vehicle KW railway KW orthophotoplane KW digital terrain model KW cross-profile construction KW calculation of excavation volumes KW photogrammetry KW satellite data KW remote sensing of the Earth JO Izvestia Vuzov. Geodesy and Aerophotosurveying AU Scheglov, M.A. AU Karelov, A.I. AU Pavlovskiy, A.A. PY 2025 IS 69 PB MIIGAiK