TY JOUR TI Comparison of Transportation Energy Efficiency on the World Railways KW Railway transportation KW reduced freight turnover KW passenger turnover KW energy efficiency KW environment KW CO2 emissions KW specific energy volumetric capacity JO Proceedings of Petersburg Transport University AU Izvarin, M.Y. AU Evstaf'eva, M.V. AU Talyukin, D.A. AU Pavlova, V.S. PY 2022 IS 19 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"