Line 1 Yonge-University: There will be no subway service between St Clair West and Union stations, starting at 12.30 a.m., Tuesday July 22 and Wednesday July 23, due to planned track work. Shuttle buses will operate. See other service alerts. (Updated Tue Jul 22 )Line 1 Yonge-University: There will be no subway service between St Clair West and Union stations, starting at 12:30 a.m., Tuesday July 22 and Wednesday July 23, due to planned track work. Shuttle buses will operate. See other service alerts. (Updated Tue Jul 22 )