Abbreviations and Glossary of TermsB Comrails Logo


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B

Ballast
The material most commonly used to form the road bed of a railway track. It usually consists of crushed rock.
Bogie
A bogie is the name given to the structure that holds 4 or 6 wheels in pairs under one end a railway vehicles. It rotates on a pivot that allows it to turn and follow curves in the track.
Broad Gauge
A broad gauge railway has track 5 foot 3 inches (1600mm) spacing between rails.

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