permissive signal
21British railway signals — Modern British signalling is based on a two, three and four aspect colour light system using non permissive block rules. It is a basic progression of the original semaphore signalling that can still be found on many secondary lines. Colour light… …
22ECONOMIC AFFAIRS — THE PRE MANDATE (LATE OTTOMAN) PERIOD Geography and Borders In September 1923 a new political entity was formally recognized by the international community. Palestine, or Ereẓ Israel as Jews have continued to refer to it for 2,000 years,… …
23Orgreave Paddy Mail accident — The Orgreave Paddy Mail accident occurred on 13 December 1926 and was the second part of a double crash which took place immediately to the west of Orgreaves Colliery signal box, about one mile west of Woodhouse station.Note: The signal box was… …
24TGV — The TGV ( train à grande vitesse , French for high speed train ) is France s high speed rail service developed by GEC Alsthom (now Alstom) and SNCF, the French national rail operator, and operated primarily by SNCF. Following the inaugural TGV… …
25Yellow trap — The yellow trap is a potentially dangerous scenario in traffic flow through a traffic light relating to permissive left turns. It occurs when a yellow light is displayed while, at the same time, oncoming traffic still has a green light, causing… …
26North American railroad signals — Main article: North American railway signaling Baltimore and Ohio Railroad Color Position Light bracket masts at Magnolia, West Virginia North American railroad signals generally fall into the category of multi headed electrically lit units… …
27Signalisation ferroviaire du métro de Paris — Mat typique de signalisation en station, à Gambetta. L intense trafic du métro de Paris nécessite un système de signalisation ferroviaire adapté à la densité de circulation. Il doit être parfaitement fiable afin d assurer la sécurité des convois… …
28Signalisation ferroviaire hongroise — Exemple : deux signaux principaux à l indication arrêt. Les chemins de fer d Etat hongrois (MÁV) ont mis en place un système de signaux avec indications de vitesse entre 1962 et 1967, conforme au standard de l OSJD. Les signaux d arrêt et… …
29Blockeinrichtungen — (block system; installations du block système; installazione del sistema di blocco), Anlagen, die zur Sicherung und Regelung des Zugverkehrs auf offener Strecke (Fahren in Raumabstand), sowie zur Sicherung der Fahrten über Weichenstraßen auf… …
30La Culture du narcissisme — La Culture du Narcissisme : la vie américaine à un âge de déclin des espérances est un livre écrit par l historien américain Christopher Lasch (1932–1994). Sa première parution date de 1979. L ouvrage explore les racines et les ramifications …
