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No exit to Alrewas

You are here: Home > Forum > Simulations > Released > Derby > No exit to Alrewas

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No exit to Alrewas 31/05/2015 at 10:25 #72906
TimTamToe
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664 posts
" said:
" said:
I haven't got Derby, but quite interesting seeing everyone's attempts! Could someone post a screenshot of the chaos at the start as obviously without the sim I can't load the save file.

Cheers

Gareth
You can easily download Derby from the downloads area. It is a donationware sim.
Thanks I know but I'm currently in the middle of writing a load of tt's on an older loader version than Derby's release so want to get those finished and checked before updating to the newest loader.

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No exit to Alrewas 31/05/2015 at 11:14 #72907
Peter Bennet
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5402 posts
" said:
Again, thanks for your responses.

Nevertheless, I would have expected the train to have taken the shunt route and still vanished from the panel. The fact that it didn't implies the sim was willing to let another train in before the first was fully out. I agree with BarryM that "This is an odd occurring bug" and am glad it has been reported.
I think the clue is in the word "shunt", you use that when you want the train to shunt within your control and not send it to another box which because you are supposedly shunting is disinterested.

Peter

I identify as half man half biscuit - crumbs!
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No exit to Alrewas 02/06/2015 at 12:21 #72953
AlexH
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161 posts
This has been enormous fun to try and unpick.

Totally failed to realise there were trains waiting on the Voyager depot, having been fairly pleased with unpicking efforts though the line to Nottingham is still packed up.

I now have 0X78 and 5X78 refusing to join. Any ideas?

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No exit to Alrewas 02/06/2015 at 12:33 #72954
Steamer
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3984 posts
" said:
I now have 0X78 and 5X78 refusing to join. Any ideas?
Known bug- either move 0X78 back to the end of the train it originally came from and join, or go back to a save before 5X78 arrives at Derby and set the stopping position to 'Far End'.

"Don't stress/ relax/ let life roll off your backs./ Except for death and paying taxes/ everything in life.../ is only for now." (Avenue Q)
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No exit to Alrewas 02/06/2015 at 14:17 #72957
AlexH
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Okay thanks that makes sense.


This next one doesn't. Phantom trains keep appearing. 5D59 appeared at Kingsbury with the wrong identity and now 0X78 is multiplying. I've attached a save.

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No exit to Alrewas 02/06/2015 at 14:40 #72958
Steamer
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There are two 5D59s, unfortunately they appear in the simulation at the same time- the one from Kingsbury is bound for Barton, the approaching from Stenson Jn is for Etches Park. Clicking either TD will show the same TT. This appears to be an unintended side-effect of using UIDs- previously, they would contain suffixes that would cause the correct TD to be displayed.

Not sure what happened with 0X78- did you edit 5X78s timetable, or abandon and re-assign it? That could cause it to split 0X78 off twice. I'd remove the second 0X78, which has no power.

"Don't stress/ relax/ let life roll off your backs./ Except for death and paying taxes/ everything in life.../ is only for now." (Avenue Q)
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No exit to Alrewas 03/06/2015 at 10:32 #72979
Frankley Junction
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There is a known issue with the length of the run round on the UGL. The workaround is to shorten the length of 5X78 and when 0X78 has joined, you have to set it back first behind 449 before despatching it. 0X78 doesn't go to the right locations either. This is all known about as I understand it and will be fixed in a future release, but you just have to live with it for now.
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No exit to Alrewas 03/06/2015 at 19:07 #72984
AlexH
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It all went to hell so I deleted it. I took the option of running the loco back onto the original end of the train as a work around. However when reversing back from Derby North Junction the loco ran straight through the train and was waiting at the exit siding of the DGL or UGL (I don't recall which). Weird behaviour.

Later, 5L86 (I think) which is timetabled to reverse at St Mary's North doesn't fit and fouls the line. Possibly just not pulling up to the end of the siding? Not sure.

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No exit to Alrewas 07/06/2015 at 03:09 #73050
flabberdacks
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636 posts
" said:
It's 20:50 sim time, and I've finally cleared the backlog on all lines. Down to 27 trains, but now I've got Etches Park and Barton Central to empty of their morning trains (I deliberately left those until last). Not exactly how they'd have done it in
real life, but there you go. There are still two trains waiting to go to Matlock, with a third approaching Belper.

My score is now 1082 OUT OF 22069 (5%). :)
Had a shot at this last night and thismorning - ended up with a similar result to yourself!

Despite being warned by AlexH's post, I made some remarkable noises on realising Barton and Etches Park were trying to send trains due 10-11 hours ago!

Started paying attention to correct platforming at Derby and using the goods lines at Clay Mills around 2040/2045 sim time.

It's now 2120, my score is 6%, and everything is clear except the Matlock trains which I have decided to keep running to altered stops, requiring a bit of stacking in the loop nearby.

Had to remove the run-around movements though. Couldn't get them to rejoin unfortunately.

The first two or three hours... wow

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No exit to Alrewas 07/06/2015 at 06:08 #73053
lazzer
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634 posts
" said:
" said:
It's 20:50 sim time, and I've finally cleared the backlog on all lines. Down to 27 trains, but now I've got Etches Park and Barton Central to empty of their morning trains (I deliberately left those until last). Not exactly how they'd have done it in
real life, but there you go. There are still two trains waiting to go to Matlock, with a third approaching Belper.

My score is now 1082 OUT OF 22069 (5%). :)
Had a shot at this last night and thismorning - ended up with a similar result to yourself!

Despite being warned by AlexH's post, I made some remarkable noises on realising Barton and Etches Park were trying to send trains due 10-11 hours ago!

Started paying attention to correct platforming at Derby and using the goods lines at Clay Mills around 2040/2045 sim time.

It's now 2120, my score is 6%, and everything is clear except the Matlock trains which I have decided to keep running to altered stops, requiring a bit of stacking in the loop nearby.

Had to remove the run-around movements though. Couldn't get them to rejoin unfortunately.

The first two or three hours... wow
I just whacked trains in any platforms I could at Derby. I worked out early on that waiting for the correct platforms would just delay things further. I finished the whole TT with a 16% score, and 91 incorrect platforms.

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No exit to Alrewas 07/06/2015 at 10:59 #73054
flabberdacks
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636 posts
" said:


I just whacked trains in any platforms I could at Derby. I worked out early on that waiting for the correct platforms would just delay things further. I finished the whole TT with a 16% score, and 91 incorrect platforms. :)
*collapses, exhausted*

Not quite as good as yours, but I'm still pretty happy with that. Now, back to munching handfuls of headache pills as if they were m&ms...


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No exit to Alrewas 08/06/2015 at 00:10 #73068
Mattyq
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(Disclaimer: The following statement is made purely for comedic purposes and, in no way, is intended to flame or ridicule any fellow Simsigger).

NEWSFLASH!!!!!

"Nurofen sales go through the roof as the fraternity of Simsig players worldwide tackle the Maxand Derby challenge"!!! :doh

So, yes, I agree with Flabberdacks' lament regarding the consumption of headache relief pills. :sick:

As for my effort, I will post my results a little later (to be quite honest, the F5 button is one I RARELY use). Suffice it to say I completely disregarded platform allocations, permissive working rules and excessive delay to road users (esp at Spondon). :evil: I prioritised pax movements, side-tracking all freighters to get the pax trains moving. By doing this, I "learned" that:-

1. Without first consulting the manual for road lengths, you can fit:
a) at least 3 freighters on the Down Goods at Breadsall,
b) at least 2 freighters on the Sunnyhill Up Goods
c) 3 freighters on the Up Goods between Burton Wetmore Jn and Clay Mills Jn
d) at least 3 Matlock services on the Broadholme Loop
(The above is more a statement of what I resorted to, rather than lessons learned)
2. (BUG REPORT) The automatic call-on signals (EG: 106, 157) on the Goods lines don't work (I had to ASPAD trains to bunch them up).
3. (BUG REPORT - maybe?) Many of the stand-alone shunt signals (EG: 479, 524) are "absolute" (IE: will not clear onto an occupied track).

The "Hand of God" (IE: Remove train) was only used once for 5X77 which would not join after its run round (and several attempts to remedy this).

With tongue firmly planted in cheek, I eagerly wait for old mate to wave his tragic wand on another sim to further boost the sales of Nurofen. :lol:

Not fat ..... fluffy!! (G Iglesias)
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No exit to Alrewas 08/06/2015 at 22:13 #73083
Gwasanaethau
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509 posts
Just loaded up that save: 75 trains in sim, of which 34 are on the telephone! No wonder why you hate that telephone, Max! :blink: This is gonna be fun!
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No exit to Alrewas 08/06/2015 at 22:15 #73084
dwelham313
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Just started this too - 45 mins in and up to 84 trains on the panel - my score is currently 3%!

Hours of fun ahead!

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No exit to Alrewas 08/06/2015 at 23:54 #73087
Gwasanaethau
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Eeep! Some of the trains leaving Etches Park have been held for twelve hours!!! :yikes
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No exit to Alrewas 09/06/2015 at 00:11 #73088
flabberdacks
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" said:

3. (BUG REPORT - maybe?) Many of the stand-alone shunt signals (EG: 479, 524) are "absolute" (IE: will not clear onto an occupied track).
I've always wanted to ask a signal engineer about this. It's a shunt signal, why wouldn't it clear, or at least approach-clear?

I remember once at Auburn box we had a shunt signal facing the wrong way on the down sub, for moves out of the down sheds to platform 3 or 4. Testing crews discovered it would clear when the platform was occupied one day during a possession and absolutely freaked out, booked it out of use and everything "uhh it's not meant to do that on a main line".

I was confused, as were others. Our rules even state that a shunt indication is no assurance the block is unoccupied (let alone common sense). Why restrict operational flexibility? They must have found a risk somewhere. It's above my pay grade, that's for sure.

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No exit to Alrewas 09/06/2015 at 00:58 #73089
Muzer
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I'm no signal engineer either (nor do I work in the industry at all), but on passenger lines, isn't it the case that permissive working is only allowed at stations, and where there is no reasonable alternative?

(The standard, GK/RT0044, is less than clear on this point, being clear that it's wrong for passenger trains to be signalled permissively except in the above case, but not, as far as I can tell, that it's wrong for a freight or ECS to be permissively signalled into a block already occupied by a passenger train. Correct me if I've missed something here.)

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No exit to Alrewas 09/06/2015 at 01:29 #73090
Mattyq
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" said:
Eeep! Some of the trains leaving Etches Park have been held for twelve hours!!! :yikes
Don't forget the ones waiting to exit Barton Rivers!

Not fat ..... fluffy!! (G Iglesias)
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No exit to Alrewas 09/06/2015 at 10:33 #73099
clive
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2789 posts
" said:
" said:

3. (BUG REPORT - maybe?) Many of the stand-alone shunt signals (EG: 479, 524) are "absolute" (IE: will not clear onto an occupied track).
I've always wanted to ask a signal engineer about this. It's a shunt signal, why wouldn't it clear, or at least approach-clear?

I remember once at Auburn box we had a shunt signal facing the wrong way on the down sub, for moves out of the down sheds to platform 3 or 4. Testing crews discovered it would clear when the platform was occupied one day during a possession and absolutely freaked out, booked it out of use and everything "uhh it's not meant to do that on a main line".

I was confused, as were others. Our rules even state that a shunt indication is no assurance the block is unoccupied (let alone common sense). Why restrict operational flexibility? They must have found a risk somewhere. It's above my pay grade, that's for sure.
Shunt and subsidiary signals have a number of purposes. Common ones include:
- signal a train into non-track-circuited track
- signal a train into occupied track
- shunt a train in the wrong direction
- signal a train forward with a limit of authority much closer than the next running signal
- signal a train out of uncontrolled territory into controlled territory.
While the first two have no assurance that the block is unoccupied, there's no reason why the other three shouldn't. Indeed, in many cases you do *not* want a train to proceed on to occupied track.

There are also hybrid cases. Where a signal reads to an occupied platform but isn't at the platform entrance, you don't want it to clear if the approach tracks are occupied. Otherwise you could easily lock up the entire station throat (consider King's Cross, where the dummies are at the Gasworks Tunnel mouths). So those signals must not clear with those track circuits occupied.

Rather than have two different subsidiary signals for these cases, UK practice is to have a single aspect for both. Therefore the *driver* needs to always assume that the line might be occupied, but the *signal engineer* might be required to check the line is clear. It's like the delayed yellow aspect; the driver isn't told why some signals change from red to yellow just as she's about to stop at them, but the signal engineer knows about reduced overlaps.

Presumably the designer said that trains coming out of the sheds need an empty platform, so that's what got designed in the control tables. At that point, if the signal clears with an occupied platform then there's a wrong-side failure of the signalling that needs investigating. Forget what the signal aspect was; the issue is that the signal was clearing in a situation when it shouldn't. If that signal could clear like that, a running signal reading into the platform could clear to yellow. Or green.

(In other words, we have a potential Clapham Junction or Barnham. I don't blame them for freaking out.)

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No exit to Alrewas 09/06/2015 at 13:12 #73100
flabberdacks
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" said:
if the signal clears with an occupied platform then there's a wrong-side failure of the signalling that needs investigating.
It did turn out to be a wrongside failure, a particular relay concerned with that route was damaged. My question was more on the design decision, and thankyou for your answer!

Moot point now though, the box was decommissioned a couple of weeks ago and the area has been heavily remodelled.

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No exit to Alrewas 09/06/2015 at 15:15 #73101
dwelham313
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My score at midnight-

Trains passing timing points: 2956 total timing points
On time: 607 (21%)
2 mins late: 142 (5%)
5 mins late: 105 (4%)
Over 5 mins late: 2102 (71%)

Minutes lost/gained overall:
Total minutes lost by you: 29225
Total minutes recovered by you: 258

Trains using the correct platforms: 231 occasions
Correct: 131 (57%)
Opposite: 9 (4%)
Incorrect: 91 (39%)

Miscellaneous:
Total routes cancelled with trains approaching: 3
Total wrong routes set for trains: 9
Total joining moves abandoned: 0
Total trains removed: 2
Total trains shortened: 0
Other points lost: 926

TOTAL SCORE 5078 OUT OF 27287 (19%)

Very stressful but enjoyable 8 hours of SimSig had there! Even managed to get the last Matlock train running on time!

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No exit to Alrewas 09/06/2015 at 15:17 #73102
GeoffM
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" said:
" said:

3. (BUG REPORT - maybe?) Many of the stand-alone shunt signals (EG: 479, 524) are "absolute" (IE: will not clear onto an occupied track).
I've always wanted to ask a signal engineer about this. It's a shunt signal, why wouldn't it clear, or at least approach-clear?
These days it's becoming more common for shunt signals to have two routes per destination: permissive and non-permissive, eg R1002A(P) and R1002A(NP) in terms of route identities. The signaller might or might not get to confirm which he wants by use of different entrance/exit controls. Quite often these days the non-permissive shunt routes get overlaps too, albeit usually short.

SimSig Boss
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No exit to Alrewas 10/06/2015 at 02:47 #73107
Gwasanaethau
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Phew! :silly:

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No exit to Alrewas 10/06/2015 at 12:19 #73120
Splodge
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8% :blush:

Though considering at one point I was well into negative figures I'm reasonably happy with that!



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There's the right way, the wrong way and the railway.
Last edited: 10/06/2015 at 12:20 by Splodge
Reason: added pic

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No exit to Alrewas 10/06/2015 at 22:29 #73128
RainbowNines
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I'm at about 2045. It's stressful but extremely good fun. I only "broke even" on the score at 2025 or so (just ticked over to 1% when I saved and quit).

I'd cleared the backlog from all directions except the last few at Etches Park and a long line of trains at Long Eaton, where I was having a horrible time - the restricted approach into the station is really knackering! My concentration had started to wane by then but I'll probably go back and finish it.

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