R-507
End of mandatory roadway for motor vehicles except two-wheeled motorcycles
Marks the place from which a previous mandatory roadway for motor vehicles sign (except two-wheeled motorcycles and three-wheeled vehicles classed as motorcycles) no longer applies.
Category: End of restriction signs
Source: General Traffic Regulations (RD 1428/2003), Annex I; designs per the official sign catalog (RD 465/2025)