S-222a
Side-mounted advance sign on conventional or multilane road to autopista or autovía, with through route
On a conventional or multilane road, shows the through route of the road being traveled and the destinations of the exits at the upcoming intersection when they lead to an autopista or autovía, as well as the distance to those exits.
Category: Advance direction signs
Source: General Traffic Regulations (RD 1428/2003), Annex I; designs per the official sign catalog (RD 465/2025)