An interchange is a road junction that allows vehicles to switch between different highways or roads without the need for traffic signals. These structures often include ramps and overpasses, enabling smooth transitions and reducing congestion. Interchanges are designed to improve traffic flow and safety by minimizing the number of stops and potential collisions. Common types of interchanges include the diamond interchange, cloverleaf interchange, and trumpet interchange. Each design serves specific traffic patterns and volumes, making them suitable for various locations. Interchanges are essential components of modern transportation systems, facilitating efficient travel across urban and rural areas.