What often follows the illumination of a stop signal?

The illumination of a stop signal typically indicates to the train crew that they must halt their train's progress due to a potential hazard or another train occupying the same section of track. Following this, a detailed inspection of train operations is often required to ensure safety and compliance with regulations. This inspection involves reviewing the train's status, assessing track conditions, and confirming that it's safe to proceed.

In scenarios where a stop signal is displayed, the crew must assess the situation before any movement can resume. This may include checking signals ahead, confirming communication from dispatch, or conducting a physical inspection of the train and surroundings to identify any issues.

While other actions may also occur in response to a stop signal, such as notifying passengers or preparing for departure, the detailed inspection is critical to ensuring that all operational aspects are secure before moving forward.