Sendai Subway Namboku Line
Overview
Status	In operation
Owner	Sendai City Transportation Bureau
Locale	Sendai, Miyagi
Termini	Tomizawa Izumi-Chūō
Stations	17
Service
Type	Rapid transit
Rolling stock	1000 series
Technical
Line length	14.8 km (9.2 mi)
Number of tracks	2
Track gauge	1,067 mm (3 ft 6 in)
Electrification	1,500 V DC from overhead catenary
Operating speed	75 km/h (45 mph)

v t e Namboku Line
Legend
km N01 0.0 Izumi-Chūō Nanakita River N02 1.2 Yaotome Mamizawa Bridge N03 2.5 Kuromatsu N04 3.3 Asahigaoka N05 4.3 Dainohara Umeda River Senzan Line N06 5.4 Kita-Sendai N07 6.6 Kita-Yobanchō N08 7.3 Kōtōdai-Kōen N09 7.9 Hirose-dōri Tōhoku Main Line & Senzan Line Tōhoku Shinkansen Senseki Line Aoba-dōri/Sendai N10 8.5 Sendai Tōzai Line N11 9.4 Itsutsubashi N12 10.0 Atagobashi N13 10.9 Kawaramachi Hirose River N14 11.7 Nagamachi-Itchōme N15 12.4 Nagamachi Tōhoku Main Line, Joban Line & Sendai Airport Line Tōhoku Shinkansen N16 13.3 Nagamachi-Minami N17 14.8 Tomizawa Zaru River Tomizawa Depot km
Sendai Subway JR East lines

The Sendai Subway Namboku Line (仙台市地下鉄南北線, Sendai shi chikatetsu nanbokusen) is a rapid transit line of Sendai Subway in Sendai, Japan. It connects Izumi-Chūō Station in Izumi-ku, Sendai, with Tomizawa Station in Taihaku-ku, Sendai. The line is 14.8 km (9.2 mi) long and has 17 stations. Like many mainline trains and metros in Japan, it uses the 1067 mm track gauge and runs on 1,500 V overhead line. The name "Namboku" means south–north, which is the general direction that the track runs.

The Namboku Line was the world's first public railway to use fuzzy logic to control its speed. This system (developed by Hitachi)^[1] accounts for the relative smoothness of the starts and stops when compared to other trains, and is 10% more energy efficient than human-controlled acceleration.^[2]

Stations

All stations are in Sendai.

History

• 1981 – Construction started
• July 15, 1987 – Line opened from Yaotome to Tomizawa.
• July 15, 1992 – Line extended from Yaotome to Izumi-Chūō.
• March 11, 2011 – Damaged in the 2011 Tōhoku earthquake and tsunami and subsequently shut down for repairs.
• April 29, 2011 – Line reopens after repair works were finished.^[3]
• 20 February 2024 – Newly delivered 3000 series begins testing.^[4]

Rolling stock

• 1000 series 4-car EMUs