If a train clears the main track on a Form D line 2 and the hand switch is restored to normal, what is required for further movement on the main?

When a train has cleared the main track according to a Form D line 2 and the hand switch has been restored to normal, it is necessary for the train to receive a new Form D line 2 to ensure the safety and proper authorization of any further movements on the main track. This requirement is in place to confirm that the track and any switches are still in a safe condition for train operations.

A new Form D line 2 provides updated instructions and re-establishes that the train has permission to proceed on the main track again. This process exists to prevent any misunderstandings or unauthorized movements, ensuring clear communication between dispatchers and train crews.

In contrast, receiving a clearance signal, suggesting that the proper signaling indicators are in place, does not replace the need for a formal authorization like a Form D. Additionally, although a verbal confirmation may seem sufficient, formal documentation is vital in railroad operations for accountability and clarity of instructions. The same applies to the idea that no steps would be needed; operational safety protocols require specific authorizations for any movements on the main track.