signalling point code
41Railroad switch — For other uses, see Switch (disambiguation). A right hand railroad switch with point indicator pointing to right …
42IP Multimedia Subsystem — The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is an architectural framework for delivering Internet Protocol (IP) multimedia services. It was originally designed by the wireless standards body 3rd Generation… …
43Railway 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… …
44North American railway signaling — For the actual physical signals, see North American railroad signals. Standards for North American railway signaling in the United States are issued by the Association of American Railroads (AAR), which is a trade association of the railroads of… …
45Integrated Services Digital Network — ISDN redirects here. For other uses, see ISDN (disambiguation). Integrated Services Digital Network (ISDN) is a set of communications standards for simultaneous digital transmission of voice, video, data, and other network services over the… …
46Centralized traffic control — (CTC) is a signalling system used by railroads. The system consists of a centralized train dispatcher s office that controls railroad switches in the CTC territory and the signals that railroad engineers must obey in order to keep the traffic… …
47Right- and left-hand traffic —   countries with right hand traffic …
48England Expects That Every Man Will Do His Duty — La Bataille de Trafalgar par Turner (1822–1824) montre les trois dernières lettres du célèbre pavillon sur le HMS Victory. « England expects that every man will do his duty …
49England expects — that every man will do his duty La Bataille de Trafalgar par Turner (1822–1824) montre les trois dernières lettres du célèbre pavillon sur le HMS Victory. « England expects that every man will do his duty …
50England expects that every man will do his duty — La Bataille de Trafalgar par Turner (1822–1824) montre les trois dernières lettres du célèbre pavillon sur le HMS Victory. « England expects that every man will do his duty » (« L’Angleterre attend de chacun qu’il fasse son… …
