Monday, 20 April 2026

New LEO LINER on the Yamaguchi Line

Seibu L00 series EMU, LEO LINER (Set L11)

Today, I would like to introduce a new train model in the Tokyo metropolitan area: Seibu Railway’s L00 series EMU, called the LEO LINER, for the Yamaguchi Line. This new model entered service on March 27 and replaces the older 8500 series EMU.

First, let me briefly introduce the Seibu-Yamaguchi Line.

The line is a rubber-tyred automated guideway transit (AGT) system that runs across the border between Tokyo Metropolis and Saitama Prefecture. It connects Tamako (Lake Tama) and Seibu-Kyujō-mae (Seibu Baseball Stadium) stations, and its total length is only 2.8 km. The entire route is single-track and uses a 750 V DC third-rail power supply. Unlike other AGT lines such as the Seaside Line, and the Nippori-Toneri Liner, trains on this line are operated by a driver. It is not a driverless system.

The top photo shows the L00 series. Each trainset consists of four aluminum-alloy cars, each 8.5 meters long (two motor cars and two trailer cars). The traction system uses variable frequency drives with 110 kW induction motors. One of the differences from the older 8500 series is that the L00 series has double-leaf external sliding doors. Seibu Railway plans to introduce three trainsets of the L00 series by the end of March 2028.

My first impression was that it looks similar to the Yurikamome 7500 series EMU. It also reminds me of JR East’s HB-E220 series. The polygonal shape of the front of the train seems to be a trend in the design of recent rolling stock.

Regarding the interior, please look at the photo below. There is a transverse seat located just behind the driver’s cab. It is called the “Kids Seat,” and it is designed for a parent and a child. They can enjoy watching the driver operate the train and looking out the front. Recently, more Japanese railway companies seem to be installing special seats for parents and children, and I think this is a very good idea.

I enjoyed observing Seibu’s new LEO LINER very much.

“Kids Seat” in the L00 series train

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