What is the purpose of trucks staying in the center lane on multi-lane highways?

The purpose of trucks staying in the center lane on multi-lane highways is to help the flow of local traffic on and off the highway. When trucks position themselves in the center lane, they can better facilitate the merging and diverging movements of vehicles entering or exiting the highway. This strategy can reduce the potential for accidents that may occur when slower-moving trucks are in the far right lane and other vehicles are trying to merge.

By staying in the center lane, trucks can maintain a level of visibility and predictability for both themselves and other drivers. It allows for a smoother transition for vehicles entering and exiting the highway while still maintaining a consistent speed, which is crucial for safety and traffic efficiency. The center lane often provides a balanced middle ground where both merging and through traffic can coexist more safely.

This strategy does not involve blocking traffic, attempting to travel faster, or fluctuating speed regardless of traffic conditions, as those actions could lead to danger and confusion on the road. Maintaining a proper lane usage helps create a more orderly flow of traffic, which benefits all types of vehicles on the highway.