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- W652430875 abstract "The authors (respectively Chief Engineer at the Electric Equipment Department and Chief Divisional Engineers at the Research Department of the RATP) explain the nature of the two types of shunting carried out in the Underground: a) ordinary: change of tracks at termini and stabling of trains; b) exceptional: change of tracks on the line and change of lines. They give historical details of earlier systems and describe the characteristics of the boxes used, whose efficiency is measured by their speed of action and their degree of automation and which incorporate two distinct techniques: one traditional for safety requirements, the other industrial for associated functions to simplify operations. The first all-relay boxes were installed in 1940; a new type of box known as the PEX (box recently been opened and the article gives its main characteristics." @default.
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- W652430875 date "1972-10-01" @default.
- W652430875 modified "2023-09-26" @default.
- W652430875 title "DEVELOPMENT OF LOCAL SIGNAL BOXES ON THE PARIS UNDERGROUND" @default.
- W652430875 hasPublicationYear "1972" @default.
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