Does this sign inform you of approaching an exit from the motorway?

Why?

The blue F-14c countdown marker with one diagonal stripe and “100 m” indicates that the exit lane begins in 100 metres. This lane leads off the motorway, so the sign warns that an exit is approaching.

§ 74 pkt 3 rozporządzenia w sprawie znaków i sygnałów drogowych, znak F-14c