Definition of signalman

The term "signalman" originated in the early 19th century during the rapid expansion of railway transportation. As trains traveled at increasing speeds, it became crucial to ensure safe and efficient operation of the network. Signals were installed at track junctions, crossings, and level crossings to control train movements. Signalmen were appointed to operate these signals and ensure that trains followed the correct path. In the U.K., the first railway signal was designed by George Stevenson in 1836, and it was operated by a signaling conductor known as a "oastman." This term came from the cockney rhyming slang "oast" for "coast" and "man" for "can," referring to the terminus for trains departing northwards from London. However, the term "signalman" gradually replaced "oastman" as the standard title for this position. Today, the role of a signalman has evolved with technological advancements in railway signaling systems. While manual operation is still required for some signals, most signals are now automated and operated from a central control room. Nonetheless, the duties of a signalman remain critical to ensuring the safe and efficient operation of railways, including monitoring train movements, coordinating with other signalmen, and responding to emergency situations.