The road sign shown indicates:

1. 1The beginning of a section of road on which a special traffic regime has been established.
2. 2The beginning of a section of road that belongs to a freeway (a road on which the special road-traffic conditions provided for in Section 27 of the Road Traffic Rules apply).
3. 3The beginning of a section of road that, by its traffic regime, belongs to roads for cars.
4. 4The beginning of a section of road on which travel is allowed only to motor vehicles.