The Eglinton Crosstown LRT opened in Toronto on Sunday, February 8th:
https://www.cbc.ca/news/canada/toronto/livestory/line-5-lrt-eglinton-crosstown-opening-9.7077945
https://globalnews.ca/news/11656920/eglinton-crosstown-lrt-opens/
This marks the end of a 15- year construction period. The line has opened to better reviews than the Finch West LRT which has been dogged by long travel times.
The line includes a 10-kilometre (6 mile) underground portion which effectively operates as a metro line with 13 new stations as well as a 9-kilometre surface section running in the median of the road with 12 stations. Total travel time on the corridor has dropped by roughly an hour from ~120 minutes to just under an hour. Further speed improvements are expected in the coming months to bring travel times down to closer to 45 minutes.
This also marks the largest transit line opening in Toronto by length since the opening of the Bloor-Danforth subway line in 1966.
A 9.2-kilometre (5.7 mile) western extension is already under construction with a completion date still 5-7 years out. The western extension is entirely grade separated and will function as a metro, much like the central underground portion of the newly opened line.