track block signaling

См. также в других словарях:

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

• block signal — noun also block signal system : a fixed signal at the entrance of a block to govern railroad trains entering and using that block compare block system 2 * * * block signaling. a fixed railroad signal governing the movements of trains entering and …   Useful english dictionary

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

• block — blockable, adj. /blok/, n. 1. a solid mass of wood, stone, etc., usually with one or more flat or approximately flat faces. 2. a hollow masonry building unit of cement, terra cotta, etc.: a wall made of concrete blocks. 3. one of a set of cube… …   Universalium

• block — [[t]blɒk[/t]] n. 1) bui a solid mass of wood, stone, etc., usu. with one or more flat or approximately flat faces 2) bui a hollow masonry building unit of cement, terra cotta, etc 3) one of a set of cube shaped pieces used as a child s toy in… …   From formal English to slang

• Automatic Block Signal — Basic Automatic Block Signals = Automatic Block Signal, or ABS, systems consist of a series of signals that govern blocks of track between the signals. The signals are automatically activated by the conditions of the block beyond the signal.… …   Wikipedia

• North 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… …   Wikipedia

• Washington Metro signaling and operation — Red signal ahead of Silver Spring pocket track on the B Route. Signaling and operation on the Washington Metro system involves train control, station identification, train signaling, signage, and train length. As with any working railroad,… …   Wikipedia

• Signalling block system — Signalling block systems enable the safe and efficient operation of railways, so as to avoid collisions between trains. Block systems are used to control trains between stations and yards, and not normally within them. Any block system is defined …   Wikipedia

• Moving block — In railway signaling, a moving block is a signaling block system where the blocks are in real time defined by computers as safe zones around each train. This requires both the need to know the exact location and speed of all trains at any given… …   Wikipedia

• 9 track tape — The IBM System/360, released in 1964, introduced what is now generally known as 9 track tape. The magnetic tape is 1/2 inch (12.65 mm) wide, with 8 data tracks and one parity track for a total of 9 parallel tracks. Data is stored as 8 bit… …   Wikipedia