What colors are displayed on a block limit signal?

A block limit signal is used to indicate the limits of a block within the railway signaling system and plays a crucial role in maintaining safe train operations. The colors displayed on a block limit signal are specifically designed to provide clear communication to train crews regarding the status of the track ahead.

The correct colors for a block limit signal are yellow and red. The yellow color typically indicates caution or a warning, suggesting that a train may need to be prepared for a stop ahead or that the conditions require reduced speed. The red color signifies a stop, indicating that the section of track beyond the signal is not clear for train movement.

Understanding this color combination is essential for train operators, as it aids in ensuring they follow the correct protocols when approaching or passing block limit signals. This attention to signaling helps to enhance safety and efficiency on the rail network.