In rail switching, what does the term “clearance” refer to?

The term "clearance" in rail switching refers to the distance between the train and any obstacles, ensuring safe passage. This is crucial in rail operations because insufficient clearance can lead to accidents or damage, especially in areas where trains may pass close to structures, other trains, or equipment. Maintaining adequate clearance helps ensure that the train can operate without the risk of colliding with objects or being obstructed in any way, which is vital for safety and efficiency in rail transportation.

Other definitions, such as speed limits or weight limits, are important in their own contexts but do not define the concept of clearance directly. Therefore, understanding clearance as a measure of spatial safety in relation to obstacles is essential for effective rail operations.