Which term denotes the information conveyed by the appearance of a signal?

• A. Interlocking (Int)
• B. Pilot
• C. Aspect
• D. Fixed Signal

Answer: (C)

The information shown by how a signal looks is called its aspect. The aspect is the visual indication presented to the train crew that communicates what they may do on the track ahead—such as proceed, proceed with caution, or stop—based on the signal’s appearance. Interlocking refers to the safety logic that coordinates signals and switches rather than the information a single signal conveys. A pilot is a separate concept, not the term for the signal’s displayed information. A fixed signal describes the type of signal device, not the meaning conveyed by its appearance. So, the term that denotes the information conveyed by the appearance of a signal is aspect.