
What it means
The S-30 sign indicates a 30 zone. It informs of entry into an area where traffic is organised with that speed reference and with an environment usually more sensitive to pedestrians, crossings, accesses, and coexistence among users. You should not interpret the zone as a single street: the indication may cover several roads until signing marks its end or changes the regulation. It usually appears in residential areas, town centres, or traffic-calmed environments. When you see it, adapt driving to a low pace, watch the edges, and read supplementary panels. In the test they often ask that it affects a zone, not only the exact point of the sign.
- 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-730
Places of geographical or ecological character

S-740
Places of monumental or cultural interest

S-750
Industrial-use zones

S-760
Motorways and dual carriageways

S-770
Other places and roads

S-800
Distance to the start of a hazard or regulatory requirement

S-810
Length of a hazardous stretch or a stretch subject to a regulatory requirement

S-820
The extension of a prohibition to one side