T junction; T intersection
A three-way intersection shaped like the letter T. Compare with 十字路 (crossroads) and Ｔ字路 (same meaning, different notation).
See also: Ｔ字路
If you go straight down this road, you'll come to a T junction.
From 丁 (てい, 'T-shaped') + 字 (じ, 'character') + 路 (ろ, 'road'), referring to the shape of the kanji 丁 resembling the letter T.