Line 1 Yonge–University has part(s) Dupont
Automatic train control
The TTC converted its block signal system to automatic train control (ATC) on Line 1 Yonge–University at a cost of $562.3 million. With ATC, the TTC will be able to reduce the headway between trains on Line 1 from 2 minutes and 30 seconds to 2 minutes during rush hours, and allow a 25 percent increase in the number of trains operating on Line 1. ATC was introduced to Line 1 in phases. It was first introduced with the opening of the TYSSE on December 17, 2017, between Vaughan and Sheppard West stations.There were delays on the project. Deadlines for the complete conversion of Line 1 were pushed back to 2016, then to 2018, to 2019,
and finally to 2022. ATC conversion was completed to Finch station on September 24, 2022.On November 4, 2017, the TTC successfully completed a 13-day test of ATC with trains using it in regular service between Dupont and Yorkdale stations. At the conclusion of the test, the feature was turned off between these two stations to allow installation of ATC through the interchange special work at the Wilson Yard. ATC was permanently extended south to Dupont station on December 3, 2018; to St. Patrick station on May 12, 2019; to Queen station on February 24, 2020; to Rosedale station on November 21, 2020, to Eglinton station in October 2021, and finally to Finch station on September 24, 2022. However, there will be a phase 6 for fixes, improvements and enhancements to be completed by the second quarter of 2023. Also as part of phase 6, ATC will need to be adjusted at Eglinton station to accommodate the shifting of the Line 1 platform north by 24 metres (79 ft).: 8–9 Prior to September 2022, ATC was operating on 79 percent of Line 1, and the partial implementation of ATC had resulted in improvements. Trains travel between Vaughan Metropolitan Centre and Rosedale stations 3.5 minutes faster. Just prior to 2020, ATC allowed for an 8 percent increase in trains per hour, and the number of trains scheduled in southbound service in the morning peak at Bloor–Yonge station increased from 22 to 25.5 trains per hour. Signal violations decreased by approximately 50 percent from 2017 to 2020.: 7 Converting all of Line 1 to ATC required the installation of 2,000 beacons, 256 signals, and more than one million feet of cable.As of 24 September 2022, the timetable for ATC conversion on Line 1 is:: 8
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