A professional who records time each train arrives and departs from station or terminal. Respnsibilities include:

• Records number of train, engine, and exact time train departs or arrives.
• Compares time of arrival or departure with train schedules to ascertain number of minutes train was off schedule.
• Ascertains from train crew or yard manager reasons or causes for delays.
• Transmits train-movement data to electronic data processing system, using on-line console or telegraphic typewriter.
• May type operating information, such as switching lists and personnel assignments, according to instructions from yard manager.