Biblioteca

The main function of alternating yellow lights is to warn drivers of a dangerous situation or a special condition on the road, requiring increased attention and reduced speed. The option that refers to the obligation to stop is incorrect, as this is the function of the transitional yellow light (non-flashing or non-alternating) or the red light. The option that refers to changing to red is also incorrect, as these specific yellow lights of the controlled speed sign serve only as a warning and do not change color, although they may be associated with a traffic light further ahead that turns red if the speed limit is exceeded.