1 .. Red stands for forbidden and dangerous. When you see the red traffic sign, you must pay attention: it reminds you not to pass! Danger! For the safety of you and others, please be sure to abide by it. Red traffic signs are mostly used in the border, background color and diagonal line of prohibition signs, as well as cross and diagonal line symbols to warn the background color of linear guidance targets. No sign: a sign that prohibits or restricts the traffic behavior of vehicles and pedestrians. Most of them are circular signs with red circles and black bars on a white background, such as "No traffic for motor vehicles" and "No honking signs".
2. Yellow means to see the warning of yellow traffic signs. Attention, everyone: it is warning you! Warning you that there are construction, school, or highway terminal tips, car distance confirmation, etc. In order to protect you and others, please be vigilant and slow down. Yellow traffic signs are mostly used for various warning signs, road traffic signs and marking lines. Warning sign: a sign warning vehicles and pedestrians to pay attention to road traffic. An equilateral triangle with black characters on a yellow background is the most common warning sign.
3. Green means a sign. You don't have to be too nervous when you see the green traffic sign. Is to remind you that you are in a safe state, or you can pass. Used to prompt safety information and various prompt signs. Guiding sign: a sign that conveys the information of road direction, position and distance. General road signs are blue background and white graphics; The road signs of urban expressways and expressways have green backgrounds and white graphics.