What is a key responsibility of an employee at a control point?

An employee at a control point has the critical role of controlling signals and ensuring safe train movements. This responsibility is fundamental because control points are designed to manage train traffic efficiently and safely. By overseeing signal operations, the employee can prevent collisions and ensure that trains operate within established safety protocols. Their actions directly contribute to the overall safety and efficiency of rail operations, making this responsibility vital in maintaining the integrity of the rail network.

The other options, while related to the rail industry, do not align with the primary duties of a control point employee. Performing mechanical repairs pertains to maintenance staff, managing train schedules is typically the job of dispatchers or planners, and issuing tickets is a function handled by passenger services or ticket agents. Thus, controlling signals at a control point is essential for promoting safe and orderly train operations.