The Society of Automotive Engineers has designated six categories of autonomous driving, ranging from Level 0 to Level 5. However, the ongoing development of self-driving cars has produced advanced technologies that can improve vehicle safety now, adding new distinctions to automated and autonomous driving features.
Level 2 automated driving is defined as systems that provide steering and brake/acceleration support, as well as lane centering and adaptive cruise control. Even if these technologies are activated, the human at the wheel must be driving and constantly supervising the automated features.
