In this situation, are you warned of the possibility of black ice occurring on the road?

In the photo you are driving on a two-way road behind a red car; on the right there is warning sign A-32 "frost on the roadway" with a snowflake symbol, and further on signs A-1 "dangerous right bend" and A-18b "wild animals". The sign with the snowflake warns of possible black ice on the roadway. The answer is: yes.

The Regulation on road signs and signals states that sign A-32 "frost on the roadway" warns of frost or black ice that may occur on the roadway; it is put up in places where frost and ice appear more often than elsewhere - on bridges, in valleys, on shaded sections through a forest. Sign A-15 "slippery road" with a symbol of a skidding car, on the other hand, warns of a slippery surface for other reasons, for example after rain. Black ice is treacherous because the glassy layer of ice looks like wet asphalt. When the temperature is close to zero, beyond such a sign you take your foot off the accelerator before the bend, do not brake sharply, increase your following distance from the red car and avoid sudden steering movements; in high temperatures in summer the sign has no practical importance.

Legal basis: § 12 para. 2 of the Regulation on road signs and signals; Art. 19 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)