In February 2021, the TTC recommended shutting down Line 3 permanently in 2023 and replacing it with bus service. The TTC rejected doing a third overhaul of the line because it would cost $522.4million and might not improve the reliability of the line. The TTC offered two bus replacement options: purchase 60 hybrid buses by 2023 for $374.8million, or reduce the number of spares for maintenance deferring the purchase of new buses until 2027 to 2030, at a cost of $357.4million. A Line 3 trip from Kennedy station to Scarborough Town Centre takes 10 minutes, while a replacement bus would take 15 to 18 minutes. Line 3's ultimate replacement, the Scarborough Subway Extension, would not be ready until at least 2030.