[trollbridge]

Hundreds of thousands? A TGV holds 500 people, so you're saying a successful TGV line does... 400 trips a day?

[decimalenough]

The Tokaido Shinkansen in Japan carried 452,000 passengers per day on 365 daily services in 2016.

[bronson]

Sure. Gare du Nord handles thousands of train movements per day. Shinjuku Station is even busier.

https://en.m.wikipedia.org/wiki/Shinjuku_Station

[LargoLasskhyfv]

I raise https://en.wikipedia.org/wiki/Hamburg_Hauptbahnhof as 'also ran' with an average of 550,000 passengers a day.