EOT Devices Replace Cabooses
As technology evolved, the role of the conductor, flagman and brakeman changed. Advances in communication equipment took the crew out of the caboose and put them in the locomotive. EOT devices have a nighttime safety light and automatically radio information about brakes and car movement to the engine’s cab. On October 7, 1984, Union Pacific's first official caboose-less train left westbound out of Salt Lake City, Utah.