Where are stock rails fitted in relation to tongue rails?

Stock rails are critical components in railroad track systems, particularly in the construction of switches and turnouts. They are designed to guide the direction of vehicles moving from one track to another effectively.

In relation to tongue rails, stock rails are positioned against the tongue rails. The purpose of this arrangement is to provide a solid, continuous surface for the wheel flanges of passing trains to ride against. When a train approaches a switch, the tongue rails pivot to direct the wheels onto the desired track. The stock rails serve as a support and guide for these tongue rails, ensuring that the flanges of the wheels are properly aligned without compromising the track's integrity.

This configuration allows for smoother transitions while minimizing the risk of derailment or misalignment. The contact between stock rails and tongue rails is crucial for the overall safety and functionality of the track system, making this arrangement vital for proper railroad operations.