Seibu Railway Co., the operator of the Seibu Shinjuku Line, will start trials on the screen on July 10. “With the transparent screen, we can talk to passengers while looking at their expressions ...

In doing so, the subway line will become the second among the four Toei lines to introduce exclusive female-only carriages after the Toei Shinjuku Line did so in 2005. The carriages will go into ...