A device for a driving assistance system for a transportation vehicle including a control unit to detect information concerning a position of a controllable road sign. The control unit detects information concerning the position of the transportation vehicle and determines information concerning at least one expected passing time, at which the transportation vehicle passes the controllable road sign, based on the information concerning the position of the transportation vehicle and the information concerning the position of the controllable road sign. The device also includes a receiving and transmitting unit to provide the information concerning the expected passing time at which the transportation vehicle passes the controllable road sign, to a control entity for the controllable road sign. The receiving and transmitting device receives information from the control entity concerning a period of time in which the controllable road sign is passable.