What can negatively affect the functioning of the lane keep assist system?

The combination you selected is indeed correct. Each of the factors listed: weather conditions, the condition of the road markings, and the presence of additional road markings within roadworks sites, can negatively impact the functionality of lane keep assist systems.

Weather conditions, such as rain, fog, or heavy snow, can obscure road markings and affect sensors. Poorly maintained or faded road markings may not provide accurate guidance for the lane keep assist system. In addition, roadworks may introduce temporary markings that could confuse the system, leading to incorrect lane detection.

German traffic regulations emphasize the importance of clear and well-maintained road markings for safe driving, which is critical for systems that rely on these visual cues. Understanding these factors helps ensure drivers remain aware of how their vehicle's technology functions and the conditions that may impair it.