For a second day in row, commuters faced long delays Wednesday on the TTC’s subway Line 1, this time due to a cracked rail.

Signal problems resulting from the cracked rail at Bloor station caused delays for those travelling northbound from King station, beginning at about 6:40 a.m. and causing four hours of delays.

By 7 a.m., “feverishly working” maintenance staff were able to make a temporary fix, but train speeds remained reduced in the area, said TTC spokesperson Brad Ross via Twitter.

Permanent repairs were expected to be made after the subway closed for the night around 1:30 a.m..

Subway riders saw travel times up to 10 minutes longer than usual northbound between King and Bloor stations, the TTC said. A “security issue” at Eglinton also led to trains bypassing the station, the TTC said via Twitter.

The snag came the morning after what Ross called “abysmal service” Tuesday — a plethora of issues that led to delays and overcrowding so severe, trains had to bypass the St. George and Bloor-Yonge stations.

Wednesday’s incident was less severe than the day before, when riders were posting photos of overflowing train platforms across both Lines 1 and 2.

Tuesday’s TTC chaos happened as Toronto transit advocates began a day of action to address overcrowded subway lines.

One of the two initiatives proposed for funding through this year’s budget process is to relieve overcrowding on buses during 25 rush hour service periods, and on the four most crowded routes during off-peak times.

The agency could add service on the bus routes in the fall, costing $1 million this year. To maintain the same service levels after that would cost $4 million annually.

Council will vote on the TTC’s 2018 budget next month.

With files from Star staff