Who must maintenance forces contact before beginning repairs, disconnecting equipment, or obstructing the track?

The correct answer is the Control Operator because maintenance forces are required to notify this individual before initiating repairs, disconnecting equipment, or obstructing the track to ensure safety and proper coordination. The Control Operator is typically responsible for overseeing the movement of trains and managing the track's operational status. By notifying the Control Operator, maintenance crews can ensure that all trains are accounted for, and that the necessary precautions are taken to avoid any accidents or disruptions in service.

Effective communication with the Control Operator helps maintain overall safety on the tracks, as they can take appropriate action, such as halting train movements in the area of the intended work. This protocol is a key aspect of safe railway operations, ensuring that maintenance activities do not inadvertently interfere with active train schedules.