What is the purpose of the driver’s card?

The device you see in the image is a digital tachograph, which is used in commercial vehicles to record various data about the vehicle's operation. Its primary functions include:

1. **Recording Driving Time:** It monitors the time spent driving, ensuring that drivers adhere to regulations regarding maximum driving hours.

2. **Recording Rest Periods:** The tachograph tracks rest periods, making sure drivers take mandatory breaks to prevent fatigue.

3. **Data Storage:** It stores information regarding speed and distances traveled, which is crucial for compliance checks.

Under German and European traffic laws, the driver’s card is essential as it serves as proof of these recorded times and is necessary for compliance with regulations governing driving limits and rest periods. Proper management of this data helps ensure road safety and promotes fair competition in the transportation industry.