What does a circular sign with a blue background showing a white figure inside it mean?

Question

DentroTest · Accepted Answer

Vertical sign R-411 is a mandatory sign, recognizable by its circular shape and its blue background with white characters. It indicates that, from the place where it is located, drivers must travel at no less than the speed given, in kilometers per hour, by the figure shown. This obligation ends on reaching an End of minimum speed sign (R-506), another minimum speed sign of a different value or a maximum speed sign of an equal or lower value. For its part, the maximum permitted speed is indicated with a circular sign with a red border (prohibition, R-301) and the advised speed with a square blue sign (information, S-7).

What does a circular sign with a blue background showing a white figure inside it mean?

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