Saransk is a station on the Kuybyshev Railway, and has additional stations serving regional railways to Ruzayevka and Krasny Uzel.
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Formerly, Saransk was also served by two daily Penza–Nizhny Novgorod passenger trains, carrying passengers from nearby villages mainly to either Ruzayevka junction station and Penza or to Arzamas and Nizhny Novgorod.