What are the precautions for driving at high speed?

Matters needing attention when taking the expressway:

1. Before leaving, be sure to carefully check whether the tire pressure, cooling water and brakes of the vehicle are working normally;

2, pay attention to choose the right lane when driving at high speed;

3. Pay attention to the signs before getting off the expressway, change lanes in advance, and choose the right intersection to get off;

4. The distance between high-speed trains should be kept larger than that on ordinary roads.