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Timetable Validation function - clarification

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Timetable Validation function - clarification 23/09/2024 at 14:40 #158637
Anothersignalman
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Hi all,

When testing a timetable there's a button for "Validate", in each train's data page. What, exactly, does that test?

Based on some experimenting with V4.1.3 of the VicLUL timetable, I don't think it's testing that each train is formed by an earlier trip / forms a later trip. Otherwise, it should detect that, for instance, V240-18 finishes at 18:54;30 but forms V240-18E, an 18:49;30 departure.

Is that something that can/should be automatically detected?

Thanks,
David

Last edited: 23/09/2024 at 15:57 by Anothersignalman
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Timetable Validation function - clarification 23/09/2024 at 16:11 #158639
Steamer
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The validator checks that the individual schedule is valid- it will check that the location sequence is permitted, path/platform/line codes correct (where applicable), and other things besides.

What you're asking for is covered by the Timetable Analyser, found in F4-> Tools 1 tab. This checks the integrity of the timetable as a whole, including orphan schedules that don't get used. It will also check everything that the Validate button does.

"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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The following users said thank you: Anothersignalman, KCRCRailway
Timetable Validation function - clarification 23/09/2024 at 16:56 #158641
Anothersignalman
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OK, wow, I can see how this is an incredibly powerful tool. Thanks
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Timetable Validation function - clarification 23/09/2024 at 16:59 #158642
Anothersignalman
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Is there a way to generate an output of headways? e.g. if I wanted to filter for all instances of headways <120sec at any or all locations, how would I do that, other than by exporting to a spreadsheet? I'm hopeful this sort of thing would also report instances of multiple trains in the same block, e.g. A forms B and C forms D, but A+C arrive then B+D depart, due to a timing issue.
Last edited: 23/09/2024 at 17:00 by Anothersignalman
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Timetable Validation function - clarification 23/09/2024 at 17:07 #158643
Steamer
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Tools 2 'Arrivals and Departures' generates a text file of times at each locations which might help, but for sophisticated analysis you're going to need to go down the spreadsheet/XML handling route.
"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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The following user said thank you: Anothersignalman
Timetable Validation function - clarification 23/09/2024 at 17:59 #158647
bill_gensheet
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Anothersignalman in post 158642 said:
Is there a way to generate an output of headways? e.g. if I wanted to filter for all instances of headways <120sec at any or all locations, how would I do that, other than by exporting to a spreadsheet? I'm hopeful this sort of thing would also report instances of multiple trains in the same block, e.g. A forms B and C forms D, but A+C arrive then B+D depart, due to a timing issue.
I find that a visual scan down the analysis file it creates (tt_analysis.txt) soon finds a lot of those things. A long string of
A>>
>>D
and you spot a
A>>
A>>
<<D
<<D
sequence you know you need to look closer - of course it could be correct double docking or a loco hauled timetable

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The following user said thank you: Anothersignalman
Timetable Validation function - clarification 23/09/2024 at 18:56 #158648
Anothersignalman
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Steamer in post 158643 said:
Tools 2 'Arrivals and Departures' generates a text file of times at each locations which might help, but for sophisticated analysis you're going to need to go down the spreadsheet/XML handling route.

Per this thread - https://www.SimSig.co.uk/Forum/ThreadView/55817 - I am able to manually create train graphs in LibreOffice Calc (and excel, pre-2003). I'd be happy to share a sample file if that would help to generate an XML-to-graph tool?

Last edited: 23/09/2024 at 18:57 by Anothersignalman
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