What does a red signal indicate?

A red signal indicates the need to stop, serving as a critical safety measure in train operations. The red light serves as a clear visual cue for train operators, alerting them that the track ahead is not clear, or that they must halt their movement for reasons such as an obstruction, another train on the track, or a signal related to the safe management of railway traffic.

Understanding that the signal plays a pivotal role in maintaining safety on the railways is essential, as disregarding it can result in dangerous situations. This rigorous signaling system is key to preventing accidents and ensuring the smooth operation of transit services. Other signals, such as caution or proceed with care, give different instructions that are not applicable when a red signal is displayed, reinforcing the importance of recognizing the red signal as an unequivocal command to stop.