Definite article with the names of trains

I've heard and seen train names that consist of common nouns take a definite article (eg: the Orient Express, the Sabarmati Express, etc., according to Wikipedia.).

I don't know if it's the same case with train names,

1) That consist of a proper noun or the place name they travel from/to (eg: Rawal Express, Pakistan Express, etc.).

2) That consist of more than 1 proper noun or the names of the places of both the origin and the destination (eg: Visakhapatnam - Secunderabad Duronto Express, etc.).