What do you do when you see this traffic sign on an autobahn?

The traffic sign you see indicates a traffic jam. In this situation, it's crucial to increase your alertness and distance from the vehicle in front to ensure safe driving. If a traffic jam occurs, you should also brake gradually and turn on your hazard warning lights to alert other drivers.

It's important not to move onto the hard shoulder in a traffic jam, as this can be dangerous and is generally not allowed under German traffic rules. Following these procedures helps maintain safety on the autobahn for all drivers. Understanding the correct actions to take allows for safer driving and better traffic flow during congested situations.