What feature must the automatic windshield wiper have?

The automatic windshield wiper must clear debris efficiently, as its primary function is to ensure that the driver's view is unobstructed during rainfall or when there's dirt on the windshield. This capability is crucial for maintaining safety while driving, as it enhances visibility and helps in preventing accidents. Efficient clearing of debris means that the wiper can perform its task effectively, removing water, snow, or any contaminants quickly, and adjusting its speed based on the intensity of the precipitation. This feature is essential in guaranteeing that drivers can maintain optimal sightlines and navigate safely, regardless of weather conditions.