Seibu Yamaguchi Line
Leo Liner
Overview
Other name	Leo Liner
Native name	山口線
Termini	Tamako Seibukyūjō-mae
Stations	3
Service
Type	People mover
System	Seibu Railway
Operator(s)	Seibu Railway
Rolling stock	3 Seibu 8500 series EMUs
History
Opened	1950 (1950)
Reopened	1985-04-25 (as People Mover)
Technical
Line length	2.8 km (1.7 mi)
Number of tracks	Single
Track gauge	1,700 mm (5 ft 7 in)
Electrification	Conductor rail,750 V DC
Operating speed	50 km/h (31 mph)
Route map Legend 0.0 SY01Tamako Tokyo Saitama Prefecture 0.3 SY02Seibuen-yūenchi 1.0 Higashi-Nakamine signal field[ja] Yamaguchi Depot 2.8 SY03Seibukyūjō-mae This diagram: view talk edit

This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Seibu Yamaguchi Line" – news ·newspapers ·books ·scholar ·JSTOR(July 2021) (Learn how and when to remove this message)

TheYamaguchi Line (山口線,Yamaguchi-sen) ofSeibu Railway is a 2.8 km (1.7 mi) manually-driven rubber-tyredpeople mover that runs betweenTamako inHigashimurayama, Tokyo andSeibukyūjō-mae inTokorozawa, Saitama in Japan. The line has an official nicknameLeo Liner, after 'Leo', the hero ofKimba the White Lion, who is also the mascot ofSaitama Seibu Lions baseball team. The line is the only people mover that is operated by one of Japan'smajor private railway companies.

In 1950, the predecessor of the line opened as an attraction ride calledFantasy Train (おとぎ列車,Otogi Ressha), running through the amusement area developed by Seibu Railway and its allies.Battery-powered locomotives were used at the time, running on762 mm (2 ft 6 in) gauge track. In 1952, it legally became a train line, with the official nameSeibu Yamaguchi Line. In 1984, the steam and battery powered railway closed for the line to be converted to a people mover. The next year, the new people mover line opened, mostly along the same route.

From the opening of the people mover line in 1985, the line has operated three 4-carSeibu 8500 series [ja] trains.^[1]

On January 22, 2025, Seibu Railway andMitsubishi Heavy Industries both announced a new order for 3 x 4-car trains to replace the 8500 series.^[1][2] Designated as the L00 series, the first of these sets is expected to enter service in March 2026.^[3]

The trains, to be built between and 2025 and 2027,^[1] will "boost capacity and improve passenger convenience" and "respond to diverse passenger needs through the addition of wheelchair spaces, children's seats, and information displays".^[2] The trains will consist mostly of longitudinal seats (referred to in Japan as "long seats"), instead of the transverse seats ("cross seats") fitted to the 8500 series, to maximise capacity during baseball games and concerts atBelluna Dome. The first trainset will represent theSaitama Seibu Lions baseball team, with the interior featuring the team's colours and the exterior of the first car will have a large image of the line's mascotLeo.^[2]

All services on the Seibu Yamaguchi Line are Local trains, stopping at all stations.

As of January 2025^[update], services run every 20-30 minutes. The line operates between approximately 7am and 10:30pm every day, with a running time of 7-8 minutes.^[4]

During major sporting events and concerts at venues along the line, trains operate every 10 minutes with trains passing on thesingle-track line atHigashi-Nakamine signal station [ja] where apassing loop is installed.

No.	Station name	Japanese	Transfers	Nearest facilities	Location
SY01	Tamako	多摩湖	Seibu Tamako Line	Seibuen Golf Course,[Note 1] SeibuenKeirin Course,[5][Note 1]Tama Lake (Murayama Reservoir)	Higashimurayama, Tokyo
SY02	Seibuen-yūenchi	西武園ゆうえんち		Seibuen Amusement Park	Tokorozawa, Saitama
SY03	Seibukyūjō-mae	西武球場前	Seibu Sayama Line	Seibu Dome, Sayama Lakeside Cemetery, Sayama Ski Resort, Seibu Dome Tennis Court, "Unesco Village" (Lily Park)[6]

This article incorporates material from the corresponding article in the Japanese Wikipedia.

Wikimedia Commons has media related toSeibu Yamaguchi Line.

• see middle Shinjuku Line - Yamaguchi Line station listing(in Japanese)
• Yamaguchi Line (red) in middle left of pdf Map(in Japanese)

• Seibu Yamaguchi Line
• Lines of Seibu Railway
• People mover systems in Japan
• Railway lines in Tokyo
• Rail transport in Saitama Prefecture
• Railway lines opened in 1950
• 1950 establishments in Japan
• 750 V DC railway electrification

• CS1 Japanese-language sources (ja)
• CS1 uses Japanese-language script (ja)
• Articles with short description
• Short description is different from Wikidata
• Articles needing additional references from July 2021
• All articles needing additional references
• Articles containing Japanese-language text
• Articles containing potentially dated statements from January 2025
• All articles containing potentially dated statements
• Commons category link is on Wikidata
• Articles with Japanese-language sources (ja)