"Which street is this?"

Translation: Ποιος είναι αυτός ο δρόμος;

[drvno]

Can one also say «Ποιος δρόμος είναι αυτός;»?

[troll1995]

You can say Ποιος δρόμος είναι αυτός; without "ο" before δρόμος.

[Litchic22]

Can you say - τι δρόμο είναι αυτό ?

[bi11ie]

No. Δρόμος is a masculine word. Which (masculine) = ποιος. Τι = what or what kind of.
If you wanted to ask "what kindof road is this?" you could say "τι δρόμος είναι αυτός?" but don't forget the ς

[CanislupusOslo]

Ποιος είναι ο δρόμος αυτός;?

[Tom180626]

Can one say Ποιος ειναι αυτος ο οδός?

[troll1995]

Οδός is feminine, and as such you must say ποια είναι αυτή η οδός;

[Tom180626]

Εντάξει, Ευχαριστώ.