Yamanote Line
A 34.5 km circular heavy-rail loop serving central Tokyo’s major hubs — Shinjuku, Shibuya, Ueno, Ikebukuro and more. Very frequent service, heavy commuter use.
Typical stops: Tokyo — Shinjuku — Shibuya — Ikebukuro — Ueno — Tokyo
Major JR East Lines
Chūō Main Line (Tokyo area)
Trunk line running west from Tokyo; in the Tokyo area it operates as Chūō Rapid (fast commuter) and Chūō-Sōbu (local stops). Connects central Tokyo to suburbs and further west.
Jōban Line
Runs northeast from Ueno/Nippori through Ibaraki toward Sendai and coastal towns. Combines commuter services near Tokyo with longer-distance regional trains.
Keihin–Tōhoku & Yokohama Lines
Key north–south commuter corridors linking Saitama, central Tokyo, and Yokohama area. Frequent all-stops service on urban sections.
Note: JR East operates many more lines (Sōbu, Musashino, Shōnan–Shinjuku, Tōhoku Shinkansen, Joetsu, etc.).
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