How will the limits of DCS be designated?

The correct choice is designated by station names or whole mile post numbers because this method provides a clear and standardized reference system that is easily understood and widely used in railway operations. Station names are familiar to all crew members and operational staff, allowing for quick identification of locations along the railway line. Whole mile post numbers provide a precise measurement of distance and location, which is crucial for operational safety and clarity when communicating about specific sections of track.

Utilizing station names or mile post numbers ensures that everyone involved in railroad operations can consistently identify limits of DCS (Distributed Control System) zones. This uniformity helps prevent misunderstandings and promotes safety, as all personnel can rely on universally recognized references in their communication.