Ключевые слова: brakeman, builder, checkup, conductor, control, engineer, equipment, examiner, facility, field, foreman, inspection, locomotive, maintenance, manpower, operation, patrol, professional, railroad, railway, repair, repairman, safety, section, signaler, signalman, structure, supervisor, system, technician, track, trackman, trackwalker, transportation, walk, worker, workman, worksite,