
What it means
The S-321 sign informs of places of interest by motorway or dual carriageway. It guides toward tourist, cultural, natural, or service destinations accessible from a high-capacity road, normally through a signed exit or itinerary. It does not require you to exit or authorise sudden lane changes to follow the indication. It usually appears before links or exits where those places can be reached with enough advance notice. When you see it, decide whether it matches your route, occupy the appropriate lane, and keep attention on fast traffic. In the test it is often distinguished from the equivalent on conventional roads and from ordinary service signs.
- 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.
Other related signs

S-52B
The end of a lane intended for traffic

S-53
The change from one to two traffic lanes

S-53A
A change from one to two traffic lanes with specification of the maximum speed in each of them

S-53B
The change from two to three traffic lanes

S-53C
A change from two to three traffic lanes with the maximum speed specified for each one

S-60A
A fork to the left on a two-lane carriageway

S-60B
A fork to the right on a two-lane carriageway

S-61A
A fork to the left on a three-lane carriageway