Article doesn’t even link the game.

https://www.jp.square-enix.com/game/detail/densha_ds/

Unfortunately for me, it’s very Japanese.

There are modern versions of this same game.

I have a copy for Nintendo Switch called Densha de GO! Hashiro Yamanote-sen.

Densha de GO! On Internet Archive

I was searching to see if I could find a rom and was pleasantly surprised to see that Internet Archive had online emulators.