noun
T junction; T intersection
A road junction shaped like the letter T, where one road ends at another.
この先のＴ字路を右に曲がってください。
Please turn right at the T junction ahead.
交差点 is a general intersection, while Ｔ字路 specifically refers to a T-shaped junction.
十字路 is a cross-shaped intersection, whereas Ｔ字路 is a T-shaped one.
Compound of Ｔ (T, the letter) + 字 (character) + 路 (road), literally 'T-character road', from its shape.