When issuing instructions, what type of terms must train dispatchers use?

Train dispatchers are responsible for ensuring safe and efficient operations on the railway, and the instructions they issue play a critical role in this process. Using terms prescribed by rules or special instructions ensures that communication is standardized, precise, and unambiguous. This adherence to established terminology minimizes the risk of misunderstandings that could lead to operational errors or safety incidents.

By relying on the terminology outlined in the rules or special instructions, train dispatchers provide a clear framework for train crews and other personnel to follow. This clarity is essential in a high-stakes environment where every instruction must be understood the same way by all involved parties, regardless of personal interpretation or experience levels.

Options that suggest using vague, flexible, or informal language would compromise this clarity and potentially lead to confusion, increasing the risk in railway operations. Therefore, adhering to the prescribed terms is crucial for maintaining safety and efficiency in train operations.