Numerous Metra lines are experiencing service interruptions and train cancellations due to outages with the Positive Train Control system, the agency says.
According to officials, all trains on the Metra Electric line were halted for a period of time, but are currently being restored to service.
According to a spokesperson for the agency, Metra "anticipates running on-time throughout this evening's rush hour," but there may still be changes.
Officials say that riders should "expect platform changes," and there may be some crowding on trains as equipment is adjusted.
Here is a full list of delays, updated as of 3:30 p.m.:
MD-North: Inbound train canceled at 2 p.m., but said there could still be residual delays. Multiple trains delayed by at least half an hour.
North Central Service: One train delayed by nearly an hour.
Local
MD-West: Multiple trains canceled.
Southwest Service: Delays possible, service restored.
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Rock Island: At least one train canceled, but residual delays possible.
Electric Line: Multiple trains were canceled on the main Electric Line and the South Chicago branch. Service has been restored, but with delays.
Positive Train Control systems are designed to “prevent train-to-train collisions, over-speed derailments, incursions into established work zones and movements of trains through switches left in the wrong position,” according to the U.S. Department of Transportation.
PTC technology is legally required to be used on all passenger and freight train lines in the United States.