Which type of interchange is designed to eliminate conflicting traffic during left turns?

The cloverleaf interchange is designed specifically to handle high volumes of traffic while minimizing conflicts during left turns. It achieves this by allowing vehicles to make left turns without needing to stop for opposing traffic. The structure consists of loops that enable drivers to exit and enter without directly crossing traffic lanes, which significantly improves traffic flow and safety.

In contrast, the diamond interchange is typically used at intersections with a lower traffic volume and directs left turns across lanes of traffic, which can create potential conflicts. The trumpet interchange is primarily used for transitions between highways and connecting roads, and while it is efficient, it does not specifically limit left turn conflicts. Finally, roundabout interchanges facilitate circular traffic flow and can manage left turns but do not eliminate conflicts as effectively as a cloverleaf. Therefore, the cloverleaf's unique design makes it the best choice for eliminating left turn conflicts.