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From: Tanavit <tanavit@posto.ovh>
Subject: TCB : Break or Block ?
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Bonjour,

Being currently writing an advtrains tutorial in french, I have a doubt 
about the actual meaning of the "TCB" acronym (and how to translate it).

The most common full name I read in advtrains docs is "Track Circuit Break".

But a search on internet for this acronym leads to, for example, :

https://safety.networkrail.co.uk/jargon-buster/tcb/

in which the B is for Block.

I understand that one "Track Circuit Block" is defined by two "Track 
Circuit Breaks" but I am chagrined by the unique acronym for two 
different things.

Should we change TCB to TCBB (Track Circuit Bloc Border) ?

Should I precise I am not a native English speaker ?

Cordialement.

-- 
Tanavit