Aachen University researchers have released a dataset of video of more than 110,000 vehicles driving nearly 45,000 kilometers to help develop autonomous vehicles. The researchers gathered the video by using drones hovering hundreds of meters above six different locations in Germany. In addition, the researchers categorize vehicle behavior in the videos, such as labeling a vehicle as changing lanes or actively following another vehicle. This data can help develop simulations to test autonomous vehicles. Simulations are important tools for improving the safety of autonomous vehicles because otherwise they would need to drive billions of miles to validate their safety.