Actually we only had low numbers attending and not many were that used to control tables, so we really only went through a couple of routes and didn't get onto the points at all.
I will perhaps add the examples I produced on this website (may have to wait until back home again at the weekend).
Overall this was a reasonably good attempt.
You made BH dead lock 129 points N to R; I think that you should have conditioned on lie of 126.
I note that you decided that routes to 638 GPL should call the points Reverse rather than Normal. Just wonder if you confused yourself with which set of points you were doing; it would have made sense perhaps to have called 126 Reverse (to get any overrun back onto a line signalled for that direction).
If so, this could also perhaps explain why you have listed BH as a track after routes 615A(M/C) and 619A(S) used; what I really don't see is why you listed it after 642A(S) used. Doesn't even seem to be associated with the "upside down" oute boxes which never fail to catch out some people. The track is foul but isn't going to be included in the route locking for a route that does not read that way.
Conversely you have NOT listed BH as a track after routes such as 615B(M) or 619B(S) used- just don't understand what has caused this, but somewhere or the other you seem to have got your wired crossed in this area!
A useful cross check I find is to look at the last track in a list and see whether it is one of the tracks (perhaps with condirtions) which appears in the first column showning the neat track locking; if it does not it is a fair bet that you have gone wrong somewhere and so worth a re-look.
You have decided only to time out the overlap on BJ track (and indeed have chosen a rather large time I think); however you should probably also have done this by timing on BL- otherise a short train signalled towards 638 but only neediing to get behind 647 will still be locking the overlap all the time it is waiting to change direction.
I haven't checked all the detail, but I think this covers the most significant issues. I just note that you apparently side with Dorothy regarding showing overlap locking on the CTs (because it is actually there in the data), whereas I would not show (since it is actually irrelevant to put it in given that it provides no more locking than the dead track and that is already shown in the first column- hence I say superfluous).
(16-07-2013, 09:11 AM)adobe Wrote: Hi All,
Just I have missed IRSE examination workshop on 6th & 7th July in Derby where I suppose were some debates on 2012 Layout.
So I would appreciate if somebody could please review my attempt on 129 points control table for 2012 Layout.
Many thanks in advance.
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