TY CONF TI WAYS TO IMPROVE THE EFFICIENCY OF USING THE CAPACITY OF LONG-DISTANCE PASSENGER TRAINS OF THE NORTH-WESTERN POLYGON KW population KW passenger traffic KW local speed KW passenger service JO INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE "MANAGEMENT OF OPERATIONAL WORK IN TRANSPORT" (UERT-2022) AU Perehoda, K.S. AU Al'-Shumari, A.S. PY 2022 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"