train order signal

  • 1Train order operation — is a system by which the railroads of North America conveyed operating instructions before the days of centralized traffic control, direct traffic control, and the use of track warrants conveyed by radio.Train order operation still exists on a… …

    Wikipedia

  • 2Train station — Rail transport Operations Track Maintenance High speed Gauge Stations …

    Wikipedia

  • 3Signal passed at danger — (SPAD), in railway terminology, describes an event where a train has run beyond its allocated signal block without authority, as indicated by a lineside signal showing danger (typically a red light). It is a term primarily used within the British …

    Wikipedia

  • 4Train horn — Nathan model M5 locomotive air horn Train horns are audible warning devices found on most diesel and electric locomotives. Their primary purpose is to alert persons and animals to the presence of a train, especially when approaching a grade… …

    Wikipedia

  • 5Order of First Battle of Ypres — This is the order of battle for the First Battle of Ypres fought from 19 October to 22 November 1914 as one of the main engagements of the First World War. It was fought between mixed British Expeditionary Force, French eighth army and armies of… …

    Wikipedia

  • 6Signal Corps (United States Army) — U.S. Army Signal Corps Coat of Arms Active 3 March 1863 – Present Country …

    Wikipedia

  • 7Signal box — A signal box or signal cabin is a building from which railway signals and points are controlled. The term signal cabin is used in Ireland, parts of Scotland and in Australia while in North America, the term interlocking tower predominates.… …

    Wikipedia

  • 8signal — sig|nal1 W2S3 [ˈsıgnəl] n [Date: 1300 1400; : Old French; Origin: signale, from Medieval Latin, from Late Latin signalis of a sign , from Latin signum; SIGN1] 1.) a sound or action that you make in order to give information to someone or tell… …

    Dictionary of contemporary English

  • 9signal — 1 / sIgnFl/ noun (C) 1 a sound or action that you make in order to give information to someone or tell them to do something: signal (for sb) to do sth: A bell began to ring, the 8 o clock signal to start work. | When he closes his book, it s a… …

    Longman dictionary of contemporary English

  • 10signal — [[t]sɪ̱gnəl[/t]] ♦♦♦ signals, signalling, signalled (in AM, use signaling, signaled) 1) N COUNT A signal is a gesture, sound, or action which is intended to give a particular message to the person who sees or hears it. They fired three distress… …

    English dictionary