track block section

См. также в других словарях:

• block section — /ˈblɒk sɛkʃən/ (say blok sekshuhn) noun Railways a length of track between two signals on which only one train at a time is allowed to be. Also, block …  

• Block — (bl[o^]k), n. [OE. blok; cf. F. bloc (fr. OHG.), D. & Dan. blok, Sw. & G. block, OHG. bloch. There is also an OHG. bloch, biloh; bi by + the same root as that of E. lock. Cf. {Block}, v. t., {Blockade}, and see {Lock}.] [1913 Webster] 1. A piece… …   The Collaborative International Dictionary of English

• Block printing — Block Block (bl[o^]k), n. [OE. blok; cf. F. bloc (fr. OHG.), D. & Dan. blok, Sw. & G. block, OHG. bloch. There is also an OHG. bloch, biloh; bi by + the same root as that of E. lock. Cf. {Block}, v. t., {Blockade}, and see {Lock}.] [1913 Webster] …   The Collaborative International Dictionary of English

• Block system — Block Block (bl[o^]k), n. [OE. blok; cf. F. bloc (fr. OHG.), D. & Dan. blok, Sw. & G. block, OHG. bloch. There is also an OHG. bloch, biloh; bi by + the same root as that of E. lock. Cf. {Block}, v. t., {Blockade}, and see {Lock}.] [1913 Webster] …   The Collaborative International Dictionary of English

• Track — or Tracks may refer to:In nature: * Animal tracks, imprints left on surfaces that an animal walk across * Trackway, an ancient route of travel or track used by animalsIn sport: * Track cycling, a bicycle racing sport usually held on specially… …   Wikipedia

• Track and field athletics — Track and field athletics, commonly known as athletics or track and field, is a collection of sports events that involve running, throwing and jumping. The name athletics is derived from the Greek word athlos meaning contest . HistoryThe original …   Wikipedia

• Block system — (Railroads) A system by which the track is divided into short sections, as of three or four miles, and trains are so run by the guidance of electric, or combined electric and pneumatic, signals that no train enters a section or block until the… …   The Collaborative International Dictionary of English

• block system — n. a system of dividing a railroad track into several sections (blocks) and regulating the trains by automatic signals (block signals) so that there is usually no more than one train in one section …   English World dictionary

• block signal — block signaling. a fixed railroad signal governing the movements of trains entering and using a given section of track. [1880 85] * * * …   Universalium

• Track circuit — A track circuit is a simple electrical device used to detect the presence or absence of a train on rail tracks, used to inform signallers and control relevant signals. Principles and operation The basic principle behind the track circuit lies in… …   Wikipedia

• Track (rail transport) — Permanent way redirects here. For other uses, see Permanent way (disambiguation). Twin rail tracks in a wooded area …   Wikipedia