TY JOUR TI The Use of Correlation Analysis for Determining Factors Influencing Monthly Commuter Traffic Volumes KW Irregularities (unevenness) KW suburban transportation KW average monthly temperature KW circular migration KW recreational area KW passenger flow KW correlation dependence JO Proceedings of Petersburg Transport University AU Smirnov, S.S. AU Kostenko, V.V. PY 2025 IS 22 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"