Mandatory Signs
Mandatory signs indicate the permitted directions of movement and the minimum speed, and also prescribe the directions of movement for pedestrians and the drivers of certain vehicles. They are:

4.1.1. "Straight ahead only"
The effect of the sign placed at the beginning of a section of road extends to the nearest intersection. The sign does not prohibit a right turn into courtyards and adjacent areas;
the sign may be applied in the form of arrows showing the directions of movement at the given intersection;
the sign does not apply to public transport vehicles;
the sign applies to the intersection of carriageways before which the sign is placed.

4.1.2. "Turn right only"
the sign may be applied in the form of arrows showing the directions of movement at the given intersection;
the sign does not apply to public transport vehicles;
the sign applies to the intersection of carriageways before which the sign is placed.

4.1.3. "Turn left only"
A sign permitting a left turn also permits a U-turn.
the sign may be applied in the form of arrows showing the directions of movement at the given intersection;
the sign does not apply to public transport vehicles;
the sign applies to the intersection of carriageways before which the sign is placed.

4.1.4. "Straight ahead or right"
the sign may be applied in the form of arrows showing the directions of movement at the given intersection;
the sign does not apply to public transport vehicles;
the sign applies to the intersection of carriageways before which the sign is placed.

4.1.5. "Straight ahead or left"
A sign permitting a left turn also permits a U-turn.
the sign may be applied in the form of arrows showing the directions of movement at the given intersection;
the sign does not apply to public transport vehicles;
the sign applies to the intersection of carriageways before which the sign is placed.

4.1.6. "Turn right or left"
movement is permitted only in the directions indicated by the arrows on the signs.
A sign permitting a left turn also permits a U-turn.
the sign may be applied in the form of arrows showing the directions of movement at the given intersection;
the sign does not apply to public transport vehicles;
the sign applies to the intersection of carriageways before which the sign is placed.

4.2.1. "Keep right of obstruction"
bypassing is permitted only on the side indicated by the arrow;

4.2.2. "Keep left of obstruction"
bypassing is permitted only on the side indicated by the arrow;

4.2.3. "Keep right or left of obstruction"
bypassing is permitted on both the right and the left side.

4.3. "Roundabout"
movement is permitted in the direction indicated by the arrows;

4.4.1 "Bicycle path"
movement is permitted only by mopeds and bicycles. In the absence of a footway or footpath, pedestrians may also use the bicycle path.

4.4.2 "End of bicycle path"

4.5.1 "Footpath"
only the movement of pedestrians is permitted.

4.5.2 "Shared pedestrian and bicycle path (shared-use cycle and pedestrian path)"

4.5.3 "End of shared pedestrian and bicycle path (end of shared-use cycle and pedestrian path)"

4.5.4 "Separated pedestrian and bicycle path (segregated cycle and pedestrian path)"
A segregated pedestrian and bicycle path, with its pedestrian and cycle sides separated structurally and/or by horizontal road markings 1.2, 1.23.2 and 1.23.3, or by other means;

4.5.5. "Separated pedestrian and bicycle path (segregated cycle and pedestrian path)"
A segregated pedestrian and bicycle path, with its pedestrian and cycle sides separated structurally and/or by horizontal road markings 1.2, 1.23.2 and 1.23.3, or by other means;

4.5.6 "End of separated pedestrian and bicycle path (end of segregated cycle and pedestrian path)"

4.5.7. "End of separated pedestrian and bicycle path (end of segregated cycle and pedestrian path)"

4.6. "Minimum speed limit"
movement is permitted only at the indicated (km/h) speed or higher;

4.7. "End of minimum speed limit"

4.8.1 "Direction for vehicles carrying dangerous goods"
Movement of vehicles equipped with the "Dangerous goods" warning sign is permitted only straight ahead.

4.8.2 "Direction for vehicles carrying dangerous goods"
Movement of vehicles equipped with the "Dangerous goods" warning sign is permitted only to the right.

4.8.3 "Direction for vehicles carrying dangerous goods"
Movement of vehicles equipped with the "Dangerous goods" warning sign is permitted only to the left.

4.9.1. "Use of anti-skid chains"
when snow or ice is present on the carriageway surface, trucks and buses with a permissible maximum mass exceeding 3.5 tonnes may proceed only with anti-skid chains fitted to at least two driving wheels. The zone of effect of sign 4.9.1 extends from the sign to sign 4.9.2. Sign 4.9.1 is used together with supplementary plate 8.5.8. An advance sign 4.9.1 may be used together with supplementary plate 8.1.1.

4.9.2. "End of compulsory use of anti-skid chains"
indicates the end of the zone of effect of sign 4.9.1.