Reduced Speed Zone Tracking: Update to August 2025

In previous articles, I have tracked the evolution of subway segments where Reduced Speed Zones (RSZs) are in place since February 2024. Recent comments in other articles suggest that readers have not been following this.

Here are updated charts showing areas where speeds are or have been restricted on Lines 1 and 2.

The charts on the left are for 2024, while those on the right show 2025 with a gap at the top where I did not check for about a month. The longevity of the RSZs can be clearly seen in the length of more or less continuous coloured vertical bars notably on Line 1 between Eglinton and Bloor, and north from Eglinton West to Sheppard West.

The coloured areas show where RSZs were located, and the arrows show the direction with “<>” meaning “both ways”.

Tables with location details and expected times to repair taken from the TTC’s site are below. Note that in previous versions, many of these sites were expected to be repaired in August, but the target dates have been adjusted.

At the request of a reader, here are the Line 1 and 2 charts condensed onto a single page for each line so that the year-to-year continuity of problem areas is more obvious.