Photographing subway trains has become part of my routine. Today, I’d like to share my fifth post in this series—the Tozai Line. The theme is “the Tozai Blue.” But before getting down to the main topic, as usual…
・What’s the Tozai Line?
It is the fifth-oldest subway line in Tokyo. It opened in 1964 and is operated by Tokyo Metro. The line is 30.8 km long and connects Nakano and Nishi-Funabashi. A 13.8-km section of the line, mainly in the east, runs above ground. The track gauge is 1,067 mm, and the line uses a 1,500 V DC overhead catenary system. The Tozai Line’s official line color is “light blue.”
Tozai Line trains run directly onto JR East’s Chuo-Sobu Line via Nakano and the Toyo Rapid Railway Line via Nishi-Funabashi. Tokyo Metro currently operates the 05, 05N, 07, and 15000 series EMUs on the line. Meanwhile, JR East’s E231-800 series and Toyo Rapid Railway’s 2000 series EMUs run directly onto the Tozai Line from their respective lines.
・The Tozai Blue: 05 Series EMU
All right then—please take a look at the photo above. You can see a blue-striped train, 05 Series Set 05-124, arriving at Kasai Station on an above-ground section. Needless to say, its blue stripes, especially the light blue stripe in the lower half, reflect the Tozai Line’s official color. Beautiful!
By the way, I know you may be wondering about the “Al” headmark sticker. It stands for “aluminum recycled cars.” In fact, some parts of Set 05-124 were made from aluminum recycled from the old 5000 Series EMUs. It’s an eco-friendly train, isn’t it?
・The Tozai Blue: Urayasu Station
Next, please take a look at the photo below. You can see a 15000 Series EMU arriving at Urayasu Station. The 15000 Series also has light blue livery—the Tozai Line’s color. It’s beautiful, too, isn’t it?
But I want you to notice one more thing—yes, the platform pillars. At this station, they are painted light blue, matching the Tozai Line’s color!
It may be a mere trifle, but I was impressed that Tokyo Metro pays attention to even the smallest details.
I thoroughly enjoyed my “Tozai Blue” adventure on the Tozai Line.








