Publicity information should be clear and easy to be understood and mastered by the masses. The propaganda goal should be specific, and the purpose of propaganda can be reflected by clear behavioral indicators. For example, slogans such as "Stop at the red light, go at the green light" and "Take a look at slow three's passing" are all propaganda for specific actions. This kind of propaganda technique has effectively established a code of conduct that abides by traffic rules and attaches importance to traffic safety.