Japanese phrase
何番線ですか？ nan ban sen de su ka
Meaning
Which platform does it leave from?
When to use it
Asks which platform a train departs from. It is a polite way to confirm the platform number when traveling by train.
Example dialogue
東京行きは何番線ですか？ tō kyō i ki wa nan ban sen de su ka
Which platform does the train to Tokyo leave from?
八番線です。 hachi ban sen de su
Platform eight.