How does this affect my trip? 10:30pm Thu to 12:01am Fri: Board/exit all trains on the Loop-bound side of the platform at the 35th/Archer station. Fri, 12:01am to 2am: Board/exit all trains on the Loop-bound side of the platform at the Ashland and 35th/Archer stations. Trains in both directions will operate on the same track between Halsted and Western, resulting in minor delays. Allow extra travel time. Why is service being changed? We are performing track maintenance to ensure that trains continue to operate safely along the Orange Line.