Stop. Road users must not cross the stop line or, if such is missing, the signal. The light signal consists of two light apertures at the same height that emit alternately flashing red light and a screen in the form of a triangle with rounded corners and with the tip down. The screen can be provided with a white border. Under the red light openings, there may be a circular light opening, from which flashing white light can be emitted to make the intersection easier to detect.
