Absolute blocking

Absolute blocking

A control arrangement for rail traffic in which a track is divided into sections or blocks upon which a train may not enter until the preceding train has left.

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Part of Speech: noun
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Industry/Domain: Railways
Category: Railroad
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absolute blocking

Construction;

A control arrarigement for rail traffic in which a track is divided into sections or blocks upon which a train may not enter until the preceding train has left.

absolute blocking

Railways; Railroad

A control arrangement for rail traffic in which a track is divided into sections or blocks upon which a train may not enter until the preceding train has left.

absolute block

Railways; Railroad

A section of track protected by signals into which only one train at a time is permitted.

absolute block system

Transportation; Railway

System for signalling trains developed during the 19th century and since superseded by the track circuit block system. The block system is based on the use of block sections, in ...

absolute block system

Construction;

A block system in which only a single railroad train is permitted within a block section during a given period of time.

blocking

Psychology; General psychology

A phenomenon in which an organism does not learn a new stimulus that signals an unconditioned stimulus, because the new stimulus is presented simultaneously with a stimulus that ...

gotthard base tunnel

Railways; Railroad

Currently the world's longest at 35.4-mile (57-kilometer), the Gotthard Base Tunnel through the Swiss Alps was first conceived in 1947 by engineer Eduard Gruner. The project ...

Gotthard Base Tunnel

Railways; Railroad

Currently the world's longest at 35.4-mile (57-kilometer), the Gotthard Base Tunnel through the Swiss Alps was first conceived in 1947 by engineer Eduard Gruner. The project ...

insulated switch

Railways; Railroad

A switch in which the fixtures, principally the gage plates and the switch rods connecting one rail to the other, are provided with insulation so that electric currents will not ...

turnout number

Railways; Railroad

The number corresponding to the number of frog used in a turnout.

insulating rail joint

Railways; Railroad

Sometimes called Insulated Joint. A rail joint designed to stop the flow of electric current from rail to rail, as at the end of a track circuit, by means of nonconductors so ...

turntable

Railways; Railroad

A rotating platform for turning locomotives or wagons. On the model may also be used to turn whole trains.

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