TY JOUR TI Engineering Survey Errors under Constrained Urban Conditions: Structural and Statistical Analysis KW engineering surveys KW constrained conditions KW urban development KW survey errors KW statistical analysis KW classification of violations KW risk of errors KW data reliability JO Construction production AU Abramov, I.L. AU Ekba, S.I. AU Pavlov, P.A. AU Streltsov, A.V. PY 2026 IS PB Publishing Center RIOR