What does the tachograph record?

The image depicts a tachograph, a device used in commercial vehicles to record various data related to driving activities.

In Germany, tachographs record two key aspects: the driving period and the speed traveled. These records are crucial for ensuring compliance with regulations regarding driving times and rest periods, helping to prevent driver fatigue and ensuring road safety. The tachograph does not measure fuel consumption, which is why this option is not part of the correct answer.

Understanding how to read and interpret the data from a tachograph is essential for drivers and transport companies to adhere to legal requirements and ensure safe driving practices.