Under the rules, what applies when the authority for movement is designated as YL-S?

Under the rules, what applies when the authority for movement is designated as YL-S?

• A. General signal rules apply.
• B. Trains may proceed unrestricted within yard limits.
• C. Blue signals are not applicable.
• D. Headlights must be red at all times.

Answer: (A)

When movement authority is designated as YL-S, you follow the general signal rules rather than yard-specific rules. YL indicates yard limits, but the S designation signals that standard signal indications apply to this movement. So you must observe all signals, obey aspects and speed restrictions, and be prepared to stop when a signal requires it—just like on the mainline. Blue signals and other yard-only protections aren’t the controlling method here, because the designation shifts the authority to the general signaling framework. Unrestricted movement within the yard isn’t allowed; you still need proper authority and to follow signals. Normal locomotive lighting rules apply as well; there isn’t a blanket red-headlight requirement tied to this designation.

When movement authority is designated as YL-S, you follow the general signal rules rather than yard-specific rules. YL indicates yard limits, but the S designation signals that standard signal indications apply to this movement. So you must observe all signals, obey aspects and speed restrictions, and be prepared to stop when a signal requires it—just like on the mainline. Blue signals and other yard-only protections aren’t the controlling method here, because the designation shifts the authority to the general signaling framework. Unrestricted movement within the yard isn’t allowed; you still need proper authority and to follow signals. Normal locomotive lighting rules apply as well; there isn’t a blanket red-headlight requirement tied to this designation.