If the rails are rusted or cars have standing wheels, what actions must be taken regarding interlocking appliances?

Blocking interlockings with blocking devices is the necessary action to ensure safety and proper functionality when faced with issues such as rusted rails or cars with standing wheels. When these conditions are present, they can potentially lead to unsafe situations or derailments if train movements are not controlled. Blocking interlockings prevents any unintended movements through those areas, effectively securing the interlocking appliances until they can be assessed and resolved appropriately.

Maintaining safety on the railway system is paramount, and the use of blocking devices is a precautionary measure that ensures no trains can pass through affected interlockings until it is confirmed that conditions are safe. This procedure highlights the importance of proactive safety measures within railway operations, particularly when unexpected issues arise.