What it means
The S-11 sign indicates a one-way carriageway. It informs that on that carriageway traffic travels in only one direction, so you should not expect vehicles travelling in the opposite direction within the same carriageway, except in exceptional situations or under specific signing. It usually appears at the beginning of streets, slip roads, or stretches where traffic is organised in a single direction. When you see it, position yourself correctly to continue, turn, or park according to the other signs and markings. In the test they often distinguish it from mandatory direction signs, because this informs about the carriageway layout and does not necessarily order you to turn.
- CategoryInformation signs
- ShapeRectangular or square, blue
Practise DGT questions featuring this sign
Ten DGT 2026 exam-style questions about signs, with an explanation after each. Free, no signup.
Variants of family S-11
Other related signs
S-373
Placed over the carriageway on a motorway or dual carriageway and announces two very close immediate exits toward a motorway or dual carriageway, as well as the continuing direction
S-400
A European route
S-410
Motorway and dual carriageway
S-410A
A toll motorway
S-430
A first-level regional road
S-440
A second-level regional road