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routing codes

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routing codes 30/06/2011 at 17:28 #3326
jc92
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3629 posts
a simple question- one thing ive never dealt with is routing codes send over block bells.

when are these sent?

after a train is accepted? eg i accept a 3-1 or 4 or 3-2 then its route is sent

before? highly unlikely

instead of? eg 3-3-4 might be a local code for train to X and 2-4-3 is a local code to Y which replaces 3-1 route dependant

or another? can anyone enlighten me?

"We don't stop camborne wednesdays"
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routing codes 30/06/2011 at 17:28 #17087
jc92
Avatar
3629 posts
a simple question- one thing ive never dealt with is routing codes send over block bells.

when are these sent?

after a train is accepted? eg i accept a 3-1 or 4 or 3-2 then its route is sent

before? highly unlikely

instead of? eg 3-3-4 might be a local code for train to X and 2-4-3 is a local code to Y which replaces 3-1 route dependant

or another? can anyone enlighten me?

"We don't stop camborne wednesdays"
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routing codes 30/06/2011 at 18:16 #17089
Zoe
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251 posts
http://www.s-r-s.org.uk/html/gwe/S732-BI.pdf

Here are the Box Instructions for Taunton West Station. As you can see, special ILC codes were used for some routes. This may not be the way it is done everywhere though, any such details will be in the Box Instructions for that box.

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routing codes 30/06/2011 at 18:43 #17090
Adrian the Rock
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111 posts
Usually, the special codes are used in place of the normal is-line-clear codes when offering trains forward to the next box.

There were some exceptions to this, for example Newland East used to send 2-3-4 as a special train entering section code to Henwick for trains going round the Droitwich loop. This was possible because the most common WR routing codes were/are formed by suffixing the normal bell codes with -3-4 ("turning left"or -1-5 ("right").

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routing codes 01/07/2011 at 09:09 #17112
Haraubrad
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103 posts
Hi All,
When the boxes were in operation at Fenny Compton & Aynho Junction the routing codes were, in the down direction, trains for the Coventry branch at Leamington were offered from Banbury North as normal with the addition of 5-1, thus a freightliner for Coventry was 3-2-5-5-1.
On the up Trains via Bicester at Aynho Junction were routed from Fenny Compton as follows, normal is line clear, when TES acknowledged from Banbury North the bell signal 1-5 was sent from Fenny Compton. Banbury North would then offer the train forward as (class 1) 4-1-5. If the signaller at Banbury South was a bit quick on the bell it was a bit puzzling at Aynho whether it was a 3-1-1-5 or a 3-2-5
Aubrey

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