The number of trains operating on the O-Train Line 1 was to be temporarily reduced starting on Wednesday evening after a new issue was identified with their wheel assemblies, OC Transpo announced. Read MoreTrains in service on the O-Train Line 1 will undergo maintenance after an issue was detected with the cartridge bearing assemblies. News, Local News, OC Transpo, Ottawa Sun, Realtime The number of trains operating on the O-Train Line 1 was to be temporarily reduced starting on Wednesday evening after a new issue was identified with their wheel assemblies, OC Transpo announced. Read More