set signal at line clear
1Signal 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.… …
2Signal Corps in the American Civil War — U.S. Army Signal Corps station on Elk Mountain, Maryland, overlooking the Antietam battlefield. The Signal Corps in the American Civil War comprised two organizations: the U.S. Army Signal Corps, which began with the appointment of Major Albert J …
3Automatic Block Signal — Basic Automatic Block Signals = Automatic Block Signal, or ABS, systems consist of a series of signals that govern blocks of track between the signals. The signals are automatically activated by the conditions of the block beyond the signal.… …
4Kew railway line, Melbourne — VictorianRailwayLineInfobox type = mel name = Kew yearcommenced = yearopened = 19 December 1887 yearcompleted = yearclosed = 13 May 1957 fate = Parkland, VicRoads offices lengthkm = stations = Barker and Kew tracks = Single track users =… …
5East Coast Main Line — ECML redirects here. For the European Conference on Machine Learning, see ECML PKDD. East Coast Main Line An InterCity 225 on the East Coast Main Line Overview Type …
6Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… …
7Mid-Canada Line — A rough map of the three warning lines. From north to south: Distant Early Warning Line, Mid Canada Line, and Pinetree Line …
8Voice modem command set — Main article: Modem Voice modem is a term commonly used to describe an analog telephone data modem with a built in capability of transmitting and receiving voice recordings over the phone line. Voice modems are used for telephony and answering… …
9Charing Cross (District Line) tube crash — The Charing Cross (District Line) tube crash occurred on 17 May 1938 at about 09:55 hours, between Charing Cross (now Embankment) and Temple stations. Six people were killed when a Circle Line service ran through a false clear signal into the… …
10Distant Early Warning Line — DEW redirects here. For energy emitting weapons, see Directed Energy Weapons. USAF Distant Early Warning Line and Distant Early Warning System Office Emblem …
