Precautions for semi-trailers driving on highways

1. Don't be distracted. On highways, the speed is fast. If you are distracted for a few seconds, the car has already driven dozens of meters. During this period, no one can predict what will happen. Once you lose focus, there is an emergency ahead and you may not be able to react in time, leading to an accident.
2. Control the speed. Each lane on the highway has a fixed maximum speed limit. Speeding will not only result in penalty points, but most importantly, the safety hazard is very large. The faster the speed, the greater the vehicle inertia and the longer the braking distance.
3. Turn on the turn signal before changing lanes. This is to show other vehicles your driving intentions so that others know what is going on. Be sure to turn on the turn signal in advance to serve as an early warning.