Allows to drive only at the specified speed or higher.✓پاسخ درست
It is forbidden to drive at a higher speed than indicated on the sign.
Indicates the speed at which it is proposed to drive on a given section of road.
توضیح
A white speed value on a blue circle sets a minimum speed, so traffic must travel at that speed or faster where conditions permit. A red-bordered circle sets a maximum, and a blue square merely recommends a speed rather than requiring it.
