To keep freight moving safely and reliably, we look for ways to eliminate service interruptions, and data shows most interruptions occur around switches. A switch changes the direction of a moving train and has several parts, including switch points that move to guide a train onto a different track. The frog is the crossing inside the switch where train wheels pass; traditional frogs have a gap that causes friction and wear and can force trains to slow to 10 mph until the frog is repaired or rep