Which type of interchange would typically be used where a major freeway crosses at a minor road?

The diamond interchange is designed specifically for situations where a major roadway, such as a freeway, intersects with a minor road. This type of interchange allows for efficient traffic flow by providing ramps that facilitate turns and transitions between the two roadways while minimizing conflicts. The layout typically features a diamond shape, hence the name, enabling vehicles to easily access the freeway while allowing the minor road to cross beneath or over the freeway without direct interference.

In this scenario, the diamond interchange is particularly advantageous because it allows for smooth transitions while accommodating the lower volume of traffic on the minor road compared to the freeway. As a result, it helps manage traffic flow effectively and enhances safety at the intersection.