Millennium Line
In late 2016, the SkyTrain system underwent a service change in preparation for the opening of the Evergreen Extension, resulting in a new branch of the Expo Line serving four stations that were originally built for the Millennium Line. On October 22, 2016, this branch began service from Columbia to Sapperton, Braid, Lougheed Town Centre, and Production Way–University stations, while the Millennium Line began running between VCC–Clark and Lougheed Town Centre (and later, Lafarge Lake–Douglas) stations, effectively ending nearly 15 years of Millennium Line service between Waterfront and Braid. The main Expo Line service between Waterfront and King George stations remained in place, operating at the same frequency levels.