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A few weeks ago, progress have been made to perform ATC signal upgrades, such that Line 1 trains on North York will only serve stations between Finch and Eglinton. I noticed that the rarely-used signal north of Eglinton on the southbound track [which always displays either a double-red or double-yellow, so southbound trains will reverse into the center tail track] has been replaced with an ATC-style signal. More surprisingly, I noticed that the northbound home signal, N338 X54 now had its lower lights all covered up; meaning that the signal no longer have a lower head representing which direction this train will go to. However, the lunar aspect is still present, and is only activated if the train is destined to proceed into the center track as only the center track is grade-timed. It is the same signal which is involved for putting a few trains out of service and into the Eglinton pocket track, where I have discussed in "The Eglinton Center Track in Line 1 Yonge" and recorded actual footage sometime in late August. In total, I observed about eight instances of the center track being used in the past year and a half, which is more than any other instances of center track usage. I once did ride through a center track on Line 2 though. I am not sure why this happened, but maybe it is part of the ATC upgrades or the Eglinton Station renovation which I heard will involve shifting the platforms north and making the center track all but inaccessible. I am wondering exactly why the lower lights of the N338 X54 signal got removed?
I noticed ATC is up in running between Yorkdale and Dupont. Here is a video I put together: