A professional who directs and coordinates through supervisory personnel activities of railroad engine crews to ensure efficient operation of railroad in specified jurisdictions. Responsibilities include:

• Interviews engine crew personnel to evaluate workers' knowledge of operating and train-handling rules and of railroad route characteristics, such as locations and meanings of signals and types of grades on routes.
• Rides trains and observes personnel to determine conformance to regulations governing matters, such as train signals, train timetables, and emergency procedures.
• Determines speed of trains, using radar gun and electrical speed-recording device, and documents detected violations.
• Conducts investigations of train wrecks to determine causes, to assess equipment damage, to identify personnel responsible, and issues reports of findings.