What does Rule 327 allow regarding a train entering a block?

Rule 327 provides guidelines on how a train can safely enter a block when another train is already occupying the same block. The rule states that a train may enter at restricted speed behind another train. This is crucial for ensuring safety, as it allows the following train to control its speed and be prepared to stop within the distance it can see ahead, which is essential when approaching an area where a train is already present.

Entering at restricted speed means that the engineer must operate the train at a speed that permits stopping safely, should the circumstances require it. This is particularly important in situations where visibility may be limited and helps reduce the risk of collisions between trains.

Understanding this rule is vital for safe train operations, as it promotes a proactive approach to train handling in scenarios where tracks may be shared or when the presence of other trains could pose a hazard.