Operator handing up orders to New York Central freight train at Mentzer, Ohio, in 1964. The consequences of human error on the railroad can be very serious. As an employee, you have to know that others are "heads-up" and will do their job properly just as they need to know that you will. That's as true today as it was when train movements were directed by written orders handed up to passing trains by employees known as "block operators," who worked in small, often remote buildings like the one shown at right. Missed orders could mean delays, or worse, a collision. Dewey Beaver is enginner of First 95, the train picking up orders. The photographer was fireman on the southbound "extra" (unscheduled train) in the backgound with engineer Russ Carlen. Many railroads used train orders into the 1980s.