What can restrict the functionality of a lane departure warning system?

The selected combination is correct because lane departure warning systems depend on clear road markings and a well-maintained road surface to function effectively. In German traffic regulations, maintaining clear visibility of traffic signs and road markings is crucial for safe driving and the proper functioning of assistance systems.

A dirty road surface can obscure markings, leading to false readings or system malfunctions. Similarly, the absence of road markings can render the system unable to detect lane boundaries, resulting in a lack of necessary guidance for the driver.

Understanding these factors is important as they highlight the potential limitations of technology in maintaining road safety, emphasizing the need for drivers to remain vigilant while on the road.