The dangerous lane change a van makes on a highway heading towards Sabadell: "It messed up his lap time."

Highways with the highest traffic volume are usually divided into three lanes. This is the most effective way to speed up traffic flow, as it adds another space for vehicles to navigate.

The operation of the three demarcated zones is quite simple. The rightmost zone is for traffic, while the middle and left zones are for passing slower vehicles.

However, many drivers are confused about this concept. That's what happened to a van on a highway heading toward Sabadell. The Instagram account @dashcams.esp shared the moment.

In the scene, the cameraman can be seen driving on the left, as he's going faster. Just as he's passing the van, it changes lanes to overtake, prompting the cameraman to honk and slam on his brakes.

Blame shared among users

A debate about the action has erupted in the video's comments section. While some believe the overtaker is doing something wrong, others say he was signaling ahead of time, and the person who filmed the scene sped up to have a video to share on social media.