In order to further strengthen the management of road traffic order, fully curb serious traffic violations such as speeding of motor vehicles, overcrowding of buses, drunk driving and fatigue driving, effectively improve traffic participants' awareness of traffic civilization and law-abiding, prevent and reduce serious road traffic accidents, and let us know the harm of these traffic violations to traffic safety. 1. Harmfulness of speeding According to research, the harmfulness of traffic accidents will increase by nearly 200% every time the speeding exceeds 5 kilometers. When speeding, the driver is nervous, consumes a lot of psychological and physiological energy, reduces the visual field, narrows the visual field and degrades the judgment ability, which directly affects the driver's operational stability. In case of emergency, it is often caught off guard, which is easy to cause traffic accidents such as collision and rollover. At the same time, the possibility of mechanical failure of speeding vehicles is greatly increased, such as tire puncture, brake failure and other mechanical failures. A large number of traffic accidents have proved that vehicles whose speed is close to the average speed of traffic flow have the least harm to traffic accidents, while vehicles whose speed is much higher or lower than the traffic speed will increase the probability of traffic accidents. Second, the danger of passenger car overcrowding When the vehicle is in the state of overcrowding, the loading quality increases, the vehicle inertia increases, the braking distance increases, and the harm increases accordingly. If there is serious overcrowding, it is easy to cause tire puncture, sudden deviation, brake failure, steering out of control, etc. due to excessive tire load and deformation, which will lead to traffic accidents. Third, the dangers of drunk driving After drinking alcohol, people's blood alcohol concentration will increase, leading to paralysis of the central nervous system, decreased rationality and self-control, decreased vision, narrowed vision, inattention, and weakened sense of body balance, which will lead drivers to be slow-witted and slow-moving when manipulating the brakes, accelerating, and clutch pedals, and easily fly off the road or hit buildings due to insufficient turning, ignoring passers-by, ignoring traffic signals or not paying attention to crossing the road. Therefore, the laws of all countries in the world prohibit drunk driving of motor vehicles. 4. Hazards of Fatigue Driving When driving continuously for a long time, the driver is prone to fatigue, which leads to the decline of the driver's judgment ability, slow response, increasing the possibility of operational errors, and sometimes even short-term sleep and loss of control over the vehicle. If you still drive reluctantly, you may have a traffic accident. Therefore, when the driver feels tired, he should leave the road in time, stop at a safe place to rest, and then continue driving after reducing fatigue. Five, the harm of unlicensed 1. If the motor vehicle is not licensed, the public security traffic patrol department will not be able to grasp the motor vehicle information and the owner's situation, and will not be able to effectively manage the driver, resulting in traffic safety hazards. 2. Because unlicensed and unlicensed motor vehicles have not been inspected by the public security department, long-term use leads to poor technical condition of vehicles. People in driving without a license have no formal training, and most of them have poor driving skills and weak legal awareness, so they are prone to traffic accidents. 3. After a traffic accident happened to an unlicensed and unlicensed motor vehicle, because the driver was driving an unlicensed and unlicensed vehicle and the motor vehicle was not insured, after the accident, the parties mostly fled after the accident in order to avoid punishment or unable to compensate for the losses caused by the traffic accident. Sixth, the danger of illegal parking on the expressway The speed of the expressway is faster, and the safe distance of taking measures is extended. Illegal parking on expressways often leads to other vehicles escaping, which can easily lead to serious traffic accidents. VII. Harm of Non-passenger Cars Carrying People Low-speed trucks, tricycles (formerly agricultural vehicles), tractors and other non-passenger cars are designed and manufactured to meet the demand for goods in rural areas and are not suitable for carrying people. This kind of car is prone to rollover and other accidents when turning around at high speed, and the safety and protection of the car body structure are poor, which is easy to cause serious injuries to passengers after the accident. In addition, these vehicles have been driving on rural roads with poor road conditions for many years, and their parts are seriously worn and lack of corresponding maintenance, which is prone to failure during driving and causes traffic accidents.