This is an English translation of the 178 summaries of the Japanese timelines from 2023-04-04 01:00:00 to 2023-04-04 02:00:00 UTC.
- Train delays and cancellations have occurred on multiple lines due to train safety checks within the JR East region.
- Delays and cancellations have also occurred on the Tokyu Toyoko Line due to train inspections within the Tobu Tojo Line.
- Train delays have occurred on the Joban Line, Chuo Main Line, Sotetsu Line, and Tokyu Shin-Yokohama Line.
- Some trains on the Ome Line, Chuo Line, Yurakucho Line, and Fukutoshin Line are also experiencing delays and cancellations.
- The API for Bluebird and the dog logo on Twitter have also been a topic of discussion.
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