Final answer:
When a trackman discovers a badly worn rail, they should report it immediately and take actions to prevent accidents, following established safety protocols to ensure railway operations remain safe.
Step-by-step explanation:
If a trackman discovers a badly worn rail, it is crucial for the safety of railway operations that the issue is addressed immediately.
The trackman should follow established safety protocols, which typically involve reporting the problem to a supervisor or rail maintenance control and marking the section as hazardous.
In some cases, they may need to take immediate action to prevent accidents, such as setting up warning signals or redirecting train traffic until repairs can be made.
Ignoring the problem is not an option, as it could lead to derailments or other serious accidents.