Which description matches 261 territory?

The correct answer indicates that territory classified as 261 is characterized by track that is signaled in both directions. This system allows trains to operate with greater flexibility and efficiency because it provides the ability to communicate effectively with engineers about track conditions and movements in either direction.

In 261 territory, the signaling system enables trains to pass each other on the same track, which imposes specific operational protocols to facilitate safe and efficient operations. This signaling format is significantly beneficial for managing train traffic on shared routes, providing clear communication between trains and behind-the-scenes control centers.

The other descriptions do not accurately capture the nature of 261 territory. Cross signaling only, relying solely on visual aids, or requiring manual signals would suggest a different signaling approach that lacks the comprehensive communication provided in the bidirectional signaling system of 261. Hence, the recognition that 261 allows for signaling in both directions is fundamental to understanding its operational framework.