Where do I change for line B?
'Cambia' — CAM-bya. The 'i' before 'a' is a glide, not a full vowel.
Use this when you need to transfer from one line to another. In Rome the only interchange between lines A and B is at Termini station.
'Si cambia' is an impersonal reflexive — literally 'one changes'. This is a very common construction in Italian for expressing what people generally do: 'si mangia' (one eats), 'si dorme' (one sleeps). The reflexive 'si' here replaces a subject pronoun.
Devo cambiare treno?
Do I need to change trains?
Direct first-person version of the same question.
C'è un cambio diretto?
Is there a direct transfer?
Asks whether you need to walk far or it's the same platform.
A Termini cambio linea?
Do I change lines at Termini?
Confirms the specific interchange station.
Termini in Rome is both a metro hub and Italy's busiest train station. The interchange between metro lines A and B requires walking through the main hall. Pickpockets are active here — keep bags in front of you.