Re: home signal

["Bret" <nil@mail.spectrum.com.au>]

>
> A single line track is not technically Bi-directional. Itll either be
> single line track block, or single line track control (on track
> cicuited lines). Bi-directional is the name given to the type of
> working known as DOUBLE LINE TRACK CONTROL. The term bi-directional is
> like the word racist, many people overuse the word, and they do not
> know its proper meaning. Some people call two way running or yard
> working bi-directional, but that is all wrong. Bi-directional is this:
> the section of track they use is double line, has signals facing both
> directions on both lines, and also has X, Y and Z keys which are
> provided at the country end of nominated platforms. Anything not
> fitting that description is classified as a different system.
> --
> CityRail driver, and big fan of HO and 5", 71/4" guage trains.
> My opinions are from myself and I do not represent any company, person,
> animal, object.
>
>

In QR any line which is signalled in both directions is "bi-directional".
The track section described above as "bi-directional" would be called
"duplicated bi-directional" up here.