Does this sign indicate that children are accompanied at this point through the road by an authorized person?

The T-27 supplementary plate, placed under the D-6 'pedestrian crossing' sign, warns of a place where children frequently cross the carriageway. However, this does not mean that the crossing is supervised by an authorised person. The sole purpose of this sign is to draw the driver's attention to the need to exercise particular caution due to the presence of children.