US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter II — FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 236 — RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCESSubpart G — Definitions236.73449 C.F.R. § 236.734Current of traffic.Last amended: 2017Year: 2026Length: 12 wordsOfficial source Cite as 49 C.F.R. § 236.734 (2026)The movement of trains on a specified track in a designated direction.Previous49 C.F.R. § 236.733Next49 C.F.R. § 236.735