What should you anticipate when you see this road sign?

This road sign warns you of vehicles ahead that may suddenly swerve to the left to avoid obstacles, such as tree branches lying on the roadway. It also alerts you to the possibility that these vehicles might brake suddenly in response to the hazards. This sign is placed to ensure you anticipate potentially unpredictable driving behavior from vehicles in front and stay prepared to react safely. Recognizing this sign helps you maintain a safe following distance and stay alert for any sudden changes in traffic conditions.