signalled for train operation in both directions
1international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
2Northern Counties Committee — The Northern Counties Committee (NCC) was a railway that served the north east of Ireland. It was built to Irish gauge (1,600 mm (5 ft 3 in)) but later acquired a number of 914 mm (3 ft)  narrow gauge… …
3Passing loop — Trains in a passing loop A passing loop (also called a passing siding, crossing loop, crossing place or, colloquially, a hole) is a place on a single line railway or tramway, often located at a station, where trains or trams in opposing… …
4Railway 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… …
5Chiltern Main Line — Chiltern Railways Clubman at West Ruislip Overview Type Commuter rail, Heavy rail S …
6Railway signalling — Not to be confused with Railway signal. A gantry of British semaphore signals seen from the cab of a steam locomotive Railway signalling is a system used to control railway traffic safely, essentially to prevent trains from colliding. Being… …
7United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …
8Centralized 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… …
9No. 4 Commando — after a raid on France, April 1942. Active 1940–1946 Country …
10Application of railway signals — Semaphore stop signals protecting the convergence of two tracks into one The application of railway signals on a rail layout is determined by various factors, principally the location of points of potential conflict, as well as the speed and… …
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