The document provides an overview of automated driving systems (ADS). It discusses how ADS have evolved since experiments in the 1920s and discusses key components like mapping/localization, obstacle avoidance, and path planning. It distinguishes between autonomous and automated vehicles, noting most current concepts rely on human oversight. The document also covers pros and cons of ADS, different levels of vehicle autonomy, and legal/regulatory considerations for deploying autonomous vehicles. It concludes that while technology has advanced, many challenges remain before self-driving vehicles can safely operate without human assistance or oversight.