Beijing Road Sub-branch. Tongren Subject 4 Beijing Road Branch can take the exam, and provide random test questions and mock exam training for tongren city Tianyi Driving School Subject 4 Beijing Road Branch. Subject 4, also known as the Common Sense Test of Safe and Civilized Driving, mainly includes: the operating requirements of safe and civilized driving, the knowledge of safe driving in bad weather and complex road conditions, and the emergency treatment when a tire is flat.