What is the abbreviation for Signal?

The abbreviation for "Signal" is commonly represented as "Sig." This abbreviation is widely used in railway and transportation contexts to maintain clarity and brevity in communication among train operators, conductors, and engineers. Abbreviations like "Sig" help streamline documentation and reporting, making it easier for personnel to convey information quickly and efficiently.

In the context of rail operations, where precise understanding of signals is critical for safety and operational effectiveness, using a standard abbreviation like "Sig" enhances understanding. This is crucial as misunderstandings could lead to operational delays or safety hazards.

The other options do not conform to standard practices for signaling abbreviations in the transportation field, which reinforces "Sig" as the accepted abbreviation for "Signal."