Nishitetsu Kaizuka Line
| Kaizuka Line | |
|---|---|
Kaizuka Line 600 series train | |
| Overview | |
| Owner | Nishi-Nippon Railroad (Nishitetsu) |
| Line number | NK |
| Termini | |
| Stations | 10 |
| Service | |
| Depot(s) | Tatara |
| History | |
| Opened | 23 May 1927 |
| Technical | |
| Line length | 11.0 km (6.8 mi) |
| Track gauge | 1,067 mm (3 ft 6 in) |
| Electrification | 1,500 V DC |
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The Kaizuka Line (貝塚線, Kaizuka-sen) is an 11.0 km (6.8 mi) Japanese railway line in Fukuoka prefecture, run by the private railway operator Nishi-Nippon Railroad which operates publicly as Nishitetsu. It links Kaizuka Station in Higashi-ku, Fukuoka with Nishitetsu Shingū Station in Shingū. It connects to the Kashii Line of JR Kyushu at Wajiro, and the Hakozaki Line of Fukuoka City Subway at Kaizuka.
The line was 20.9 km (13.0 mi) long until Nishitetsu closed the 9.9 km section between Nishitetsu Shingū and Tsuyazaki stations on April 1, 2007. Until then, the line was called Miyajidake Line (宮地岳線, Miyajidake-sen).
The Kaizuka Line is the most congested railway line in Japan outside the Tokyo Metropolitan area. In Fiscal Year 2022 the congestion rate between Najima and Kaizuka stations was 154% during the morning peak, making it the 2nd most congested railway line in Japan. In Fiscal Year 2023 the congestion rate was 158%, which was equal 5th most congested and the only line outside the Tokyo Metropolitan Area in the list of top 10 most congested railway lines.