The prohibition expressed in this visible sign, will it be cancelled at the next crossroad?

The visible sign is indicator W-8 'Speed Limit', which is intended for tram drivers, and not for all drivers. The rule that a prohibition is cancelled by the next junction applies to generally applicable road signs, such as sign B-33, and not to internal signals for rail vehicles. This indicator is cancelled by another indicator of the same type, which sets a different speed or lifts the restriction.