How are yard limits denoted in railway operations?

Yard limits are denoted by the abbreviation "YL" in railway operations. This designation is important because it provides clear and concise communication to train crews and maintenance personnel regarding the delineated area where specific operational rules apply. Within these limits, additional regulations may influence the movement of trains, the authority of engineers, and the work of maintenance personnel.

While there may be physical barriers, special signal flags, and signage indicating train speeds in various contexts, these methods do not specifically identify yard limits in the same standardized manner as the abbreviation "YL." The abbreviation helps ensure consistency and clarity across the rail network and allows for easier reporting and operational understanding among crews who need to observe and adhere to the rules governing yard operations.