What must a train do before passing a controlled signal displaying Stop indication if its movement is governed at an interlocking?

A train must wait for authorization before passing a controlled signal displaying a Stop indication when its movement is governed by an interlocking. In this context, the term "interlocking" refers to a safety system that ensures signals and switches are aligned properly for safe train movements. When a signal displays a Stop indication, it indicates that the train must halt to prevent any potential conflicts with other trains or unauthorized track access.

Waiting for authorization is critical because it ensures that the train crew has received clearance to proceed safely through the interlocking area. This step protects both the train and the overall railway system from accidents and ensures compliance with operational safety protocols. Failing to wait for proper authorization in such situations could lead to hazardous encounters, derailments, or collisions. Therefore, the procedure for passing a Stop signal at an interlocking is designed to maintain stringent safety standards in railway operations.