When conductors first begin their careers, they are seldom assigned regular full-time positions. Instead, they are put on a list called an "extra board" (meaning their names are on a board of people who are available 24/7) and are called in only when the railroad needs a substitute for a regular employee. On most railroads, conductors who are assigned to the extra board may work as brakers if there are not enough conductor runs available that month. The first form of promotion, then, is receiving a regular assignment as a conductor. Conductors who show promise and ability may eventually be promoted to managerial positions or crew management center dispatcher, who schedule locomotive engineers and conductors by using a computerized calling system.
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