Please be advised that there will be significant service disruptions on parts of the JR Yamanote Line and the JR Keihin-Tohoku Line this weekend, Saturday, April 19th, and Sunday, April 20th, 2025, due to track switching construction work near Tamachi Station. This work is in preparation for the new Haneda Airport Access Line.
Here are the detailed impacts on each line:
To see the PDF, please access: https://www.jreast.co.jp/tamachi-koji/pdf/tamachi-koji_en.pdf
Yamanote Line
Saturday, April 19th:
Outer Loop (clockwise): Service will be suspended all day between Ueno Station, Tokyo Station, and Osaki Station.
Inner Loop (counter-clockwise): While there will be no complete suspension on this loop, train frequency will be reduced to approximately 70-80% of the normal weekend/holiday schedule between Osaki Station, Tokyo Station, and Ueno Station.
Sunday, April 20th:
Inner and Outer Loops: Service will be suspended between Osaki Station, Tokyo Station, and Ueno Station from the first train until around 12:00 PM (noon).
After the suspension is lifted (around noon), expect reduced service on the entire Yamanote Line for the remainder of the day.
Keihin-Tohoku Line
Saturday, April 19th:
Service will be suspended all day between Higashi-Jujo Station and Shinagawa Station.
Omiya to Higashi-Jujo: Trains will operate at approximately 60-80% of the normal frequency.
Shinagawa to Kamata: Trains will operate at approximately 70-100% of the normal frequency. Importantly, Rapid services will be suspended entirely on this day.
Sunday, April 20th:
Service will be suspended between Higashi-Jujo Station and Shinagawa Station from the first train until around 12:00 PM (noon).
Omiya to Higashi-Jujo: Trains will operate at approximately 60-80% of the normal frequency.
Shinagawa to Kamata: Trains will operate at approximately 70-100% of the normal frequency. Again, Rapid services will be suspended entirely on this day.
Important Considerations:
Travel to Haneda Airport:
If you are traveling to Haneda Airport this weekend, please be especially mindful of these suspensions and reduced services. Allow for extra travel time and consider alternative routes.
Alternative Transportation: JR East will likely be providing information regarding alternative transportation options, possibly involving the Tokyo Metro and Toei Subway lines. It is advisable to check the JR East official website for detailed information on detours and alternative routes.
Increased Congestion: Expect potential congestion on other train lines and alternative transportation methods due to these suspensions.
Recommendation:
Google Maps provides public transportation schedules aligned with these service updates. Be sure to use Google Maps when planning your trip.
It is highly recommended to check the official JR East website (https://www.jreast.co.jp/multi/en/) for the most up-to-date information, including detailed maps of the affected areas and suggested alternative routes. Please plan your travel accordingly and allow for extra time to reach your destination this weekend.