The CTA instructor was crammed into a seat on the back end of a snowplow paused on the tracks when he saw the Yellow Line ...

The legal limit for train operators is .02. The crash caused $8.7 million in damage. The CTA Yellow Line-Skokie Swift did not resume operations until January 2024 — seven weeks after the crash.

The changes — mostly on the Blue Line — begin April 20. Red and Yellow line trains are having their morning schedules changed to better align with each other.

Over the past five years, slow zones have grown along most sections of the train system, the CTA slow zone maps show. One area that has slowed notably is the Yellow Line, where speeds were ...