Being scratched by the left and right flank is the main responsibility of overtaking when changing lanes. According to the relevant data of vehicle scraping, the division of responsibilities of three vehicles in parallel depends on the specific situation:

1, three cars in the same direction or three cars in the opposite direction on the road above three lanes are two cars and another car, and there is no speeding. The main responsibility is to cross the line.

2. Three cars are parallel to two lanes in the same direction, and the other one is not in the lane (overtaking from the right by using the non-lane).