What defines a Controlled Siding?

A Controlled Siding is defined as a siding within Centralized Traffic Control (CTC) limits that is authorized by signal indication. This means that the operations on this siding are governed by signals that dictate when trains are allowed to enter or leave the siding, ensuring safe and efficient movement of traffic. The control provided by signals is crucial in maintaining an organized flow of rail traffic, allowing for proper management of train movements and reducing the risk of accidents.

This description highlights the importance of signal indications in managing train movements and maintaining safety within controlled environments, such as CTC zones. The definition aligns with the broader principles of train operations where signals play a critical role in ensuring that crews are informed about track conditions and can make informed decisions accordingly.