What can be the causes of rear-end collisions?

Rear-end collisions are often caused by unexpectedly heavy braking, inattentiveness, and not keeping enough distance from the vehicle in front. If a driver brakes hard and the following driver is not attentive or is driving too close, there may not be enough time or space to react, resulting in a collision. German road rules require maintaining a safe following distance—typically half of your speed in meters (for example, 50 meters at 100 km/h) and being alert at all times so that you can stop safely if needed. Being attentive and keeping enough space are key to preventing rear-end accidents.