Editing Line 1 Yonge–University (section)

=== One-person train operation ===
Between 2021 and 2022, the TTC transitioned its Line 1 trains to one-person train operation (OPTO), which removes the secondary guard member – stationed at the rear end of the trains – who operated the doors. This change leaves only the subway drivers at the front to fill the dual role in 2023. OPTO went into effect between [[St. George station|St. George]] and [[Vaughan Metropolitan Centre station]]s in November 2021,<ref>{{cite web |url=https://www.ttc.ca/riding-the-ttc/Updates/OPTO |website=ttc.ca |publisher=Toronto Transit Commission |access-date=March 27, 2022 |archive-url=https://web.archive.org/web/20220315083914/https://www.ttc.ca/riding-the-ttc/Updates/OPTO |archive-date=March 15, 2022 |url-status=live|title=OPTO }}</ref> and was rolled out on the rest of the line effective November 20, 2022.<ref name="TTC-2022-11-20">{{cite web |url=https://www.ttc.ca/service-advisories/Service-Changes/1-Line-1-Yonge-University-Service-increase |title=Line 1 (Yonge-University)–Service increase |publisher=[[Toronto Transit Commission]] |date=November 20, 2022 |archive-url=https://web.archive.org/web/20221119015619/https://www.ttc.ca/service-advisories/Service-Changes/1-Line-1-Yonge-University-Service-increase | archive-date=November 19, 2022 |url-status=live }}</ref>