What does it mean when the instruction Switch Yes (SW-Y) is included on a Track Authority in CTC Territory?

What does it mean when the instruction Switch Yes (SW-Y) is included on a Track Authority in CTC Territory?

• A. The control point is outside the limits
• B. The entry point requires no further authority
• C. The limits are extended beyond the control point
• D. The control point is included in the limits

Answer: (D)

In this scenario, the key idea is how Track Authority in CTC Territory defines its reach and what a Switch Yes indicator tells you about that reach. When you see a switch marked as included within the authority, it means the control point at that switch lies inside the authority’s limits. In other words, the movement authority covers that switch location, so you are authorized to operate up to and through that switch as part of the same block of track under that authority. If the switch were not included, the control point would sit outside the limits, and you would need additional or separate authority to go beyond or through that switch. The other options describe situations that don’t align with the meaning of including the switch in the limits.

In this scenario, the key idea is how Track Authority in CTC Territory defines its reach and what a Switch Yes indicator tells you about that reach. When you see a switch marked as included within the authority, it means the control point at that switch lies inside the authority’s limits. In other words, the movement authority covers that switch location, so you are authorized to operate up to and through that switch as part of the same block of track under that authority.

If the switch were not included, the control point would sit outside the limits, and you would need additional or separate authority to go beyond or through that switch. The other options describe situations that don’t align with the meaning of including the switch in the limits.