2 ptsPTOfficial number: 2703
Does this signal indicate that in a moment the signal in the shape of a horizontal line will light up?

Explanation
Correct answer: Yes
The S-2 signal is intended for tram drivers, and a flashing signal in the form of a vertical bar warns of a change to the stop signal. The stop signal for a tram is a horizontal bar, which corresponds to a red light for other vehicles.