What does Block system mean?

Block system meaning in General Dictionary

a method by which the track is divided in to short parts by 3 or 4 miles and trains are so operate because of the guidance of electric or combined electric and pneumatic indicators that no train goes into a section or block before the preceding train features remaining it as with absolute blocking or that a train could be permitted to follow another into a block provided it proceeds with excessive caution as with permissive blocking

Sentence Examples with the word Block system

The roadway, tracks and rolling stock are so well maintained that those causes which lead to the worst derailments have been eliminated almost completely, and the record of serious collisions has been reduced nearly to zero by the universal use of the block system and by systematic precautions at junctions.

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