What is a "crossover" in rail switching?

A crossover in rail switching refers specifically to a track configuration that allows trains to move from one track to another parallel track. This is an essential component in rail operations, particularly at points where two tracks run side by side. Crossovers enable more flexible train movements, allowing for smoother transitions and the ability to manage traffic in a yard or on a mainline effectively.

In practice, when a train needs to switch from its current track to another, it utilizes the crossover to facilitate this change, which can help in various operations such as avoiding delays, rerouting trains, or allowing for maintenance work on one track while keeping traffic moving on another. Understanding the function of crossovers is crucial for rail yard operations and traffic management in the rail network.