The Chicago Transit Authority (CTA) announced Yellow Line trains would resume service Jan. 5, almost two months after a train collision near Howard station in November injured more than a dozen people. Since the crash the line has been shut down and the CTA has cooperated with the National Transportation Safety Board (NTSB) while the agency has investigated. A full report from the NTSB is expected later this year. CTA President Dorval Carter said several interim safety enhancements would be in place as the line opens back up "out of an abundance of caution," including reduced travel speeds for trains, supervisors accompanying operators on the first few train runs, manual command procedures for the movement of heavy non-transport vehicles on the rails and newly power-washed tracks.