What term describes the amount of main track authority issued by a track warrant?

• A. Designated limits
• B. Maximum capacity
• C. Track extent
• D. Authority range

Answer: (A)

The main idea here is the exact term used to describe how much main track a track warrant authorizes you to occupy. In Track Warrant Control, the authority is issued for a defined portion of the main track called designated limits. This is the specific stretch you’re cleared to run within, with a defined starting point and ending point. Knowing the designated limits helps ensure you don’t enter sections of track you’re not authorized to occupy, maintaining safe, opposite-direction or conflicting movements aside.

So, when a dispatcher issues a track warrant, the key detail is the designated limits—the portion of the main track covered by that warrant. The other phrases don’t align with the standard terminology used to describe the authorized track length: maximum capacity relates to how many trains could fit on the line, track extent is a general description of track length, and authority range isn’t the formal term used in this context.