S-991a
Speed enforcement on conventional or multilane road
Indicates a speed enforcement device at a point or along a section of a conventional road or multilane road. It may include an R-301 sign with the relevant speed, and upper or lower sub-panels with additional information may be added.
Category: Other signs
Source: General Traffic Regulations (RD 1428/2003), Annex I; designs per the official sign catalog (RD 465/2025)