PC Slippery Bakerloo Rails

Discussion in 'TSW General Discussion' started by phil.elliott, May 15, 2023.

  1. phil.elliott

    phil.elliott Well-Known Member

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    I've been going back to the Bakerloo route for a bit of a change, and I'm struggling with traction underground on one of the journeys. Specifically I'm getting wheelslip when starting in notch 1, which is sometimes all the way up to 10mph. Doesn't sound a lot, but over a full run it adds up.

    Worse though was fully locking up in brake notch 6 and going through a red light as a result.

    Neither of these things have happened preivously - being deep underground, surely this couldn't be to do with surface weather/temp conditions, could it?
     
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  2. meridian#2659

    meridian#2659 Well-Known Member

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    Not a problem at all. notch 2 until 10mph, then go into parallel. For braking approach the platforms at 30mph, and brake into notch 2, then back to 1 for the last bit.

    Fast approaches like kilburn park you need to go into notch 3, then back to notch 2, then 1.
    Brake above notch 3 is the lap of the westinghouse brake. notch 5 is the application of the westinghouse, notch 6 is emergency.
     
    Last edited: May 15, 2023
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  3. phil.elliott

    phil.elliott Well-Known Member

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    So this is all what I normally do - and it works fine. But for some reason, this one journey service I'm slipping like it's a skating rink... really weird.
     
  4. meridian#2659

    meridian#2659 Well-Known Member

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    Could it be that your train is not touching the rail with the powershoes? There are some positions with gaps
     
  5. redrev1917

    redrev1917 Well-Known Member

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    The underground rails are indeed affected (wrongly IMO) by the weather conditions, which is why I never turn on dynamic weather on Bakerloo as you've no idea what's the weather is doing.

    Sure I read many annum's ago that in order to fix it, all the underground track would need to be re-laid, which you can imagine is cost prohibitive.
     
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  6. west coastway trains

    west coastway trains Well-Known Member

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    I’ve just gone onto tsw to try a service from elephant and castle to Queen’s Park, 1 with clear skies and one with rain. I can confirm that even if you are in the tunnels, wheelslip will still be the same as if you were outside
     
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  7. phil.elliott

    phil.elliott Well-Known Member

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    That's a shame - but thanks for letting me know.
     
  8. Omnicitywife

    Omnicitywife Well-Known Member

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    I'd recon this is hard to simulate properly anyway, you could still slip underground if the wheels are wet after a rainy day.
     
  9. Inkar

    Inkar Well-Known Member

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    I don't think anyone asked to go that far. We do not need an extremely complex simulation that considers how many particles of water remain in each wheel or each rail. Something far more simple like considering the rails and wheels are wet when they are under the rain and completely dry when they are not under the rain is good enough for most of us.
     
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  10. redrev1917

    redrev1917 Well-Known Member

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    You notice it on SKW in the rain - some tunnels (the longer ones generally) have dry rails and others have wet rails, so the tech is there although in fairness to DTG I dont know when this tech was developed and it might postdate Bakerloo.
     
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  11. Omnicitywife

    Omnicitywife Well-Known Member

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    No, it isn't, because you WILL slip with wet wheels underground, the current implementation would be more realistic then.
     
  12. Inkar

    Inkar Well-Known Member

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    Nope, because your wheels will be wet even if you never went outside.
     
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  13. Omnicitywife

    Omnicitywife Well-Known Member

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    It is very possible to get your wheels wet if you have a train ahead of you with wet wheels.

    Anyway, I said that it would be more realistic than if wet tracks didn't exist underground, which it is.
     
  14. Inkar

    Inkar Well-Known Member

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    That is your opinion. Mine is different. Lets agree to disagree.
     
  15. Omnicitywife

    Omnicitywife Well-Known Member

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    It's not subjective. Wet tracks exists underground...
     
  16. Inkar

    Inkar Well-Known Member

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    :D:D:D
     
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  17. west coastway trains

    west coastway trains Well-Known Member

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    Instead of opinion let’s use science- if all the trains outside in the rain go inside, the water won’t just magically disappear, it’ll be carried onto the rails underground
     
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  18. redrev1917

    redrev1917 Well-Known Member

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    Yes for a short distance it will. Weve a ford near us and there's always wet tyre tracks on the road for a few feet either side of the ford but even on the coolest of dry days these don't go on for miles, not even 100' mostly
     
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  19. Inkar

    Inkar Well-Known Member

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    Using the word "science" as a way of trying to validate your point of view is not scientific at all.

    Water does not magically disappear, but also water that falls on the first section of track inside the tunnel does not magically go back to the train to fall over the next section of track, etc ... The rails 5 stations away from the entrance will not be as wet as the first one.

    None of the simplifications of reality we are talking about exactly represents what happens in real life. Which of the simplified models feels more realistic to you is totally subjective.
     
  20. Omnicitywife

    Omnicitywife Well-Known Member

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    No, it will for a long distance, and you can't just throw it in full service during that window. I've slipped half an hour later after being outside. I've slipped coming out of sidings on wet tracks other trains caused.
     
  21. Omnicitywife

    Omnicitywife Well-Known Member

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    Painfully obvious that you don't know what you are talking about...
     
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  22. Inkar

    Inkar Well-Known Member

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    :D:D:D
     
  23. meridian#2659

    meridian#2659 Well-Known Member

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    Even overground, another aspect isnt simulated are the leaves on tracks. There were bad accidents because of this (also a reason the rhtt is in use). Also tracks underground could get wet from air condition, temperature & winds etc, also im sure the brakes behave differently in the tunnels when coming right from a storm with the entire bogie being full of water, still in the brake system for a while. A Simulation of all this wouldnt be linear in any way.

    But for me bakerloo even now is totally fine, nevery had a problem to brake (and im keeping the a.i timings no HUD). I dont think we need a macroparticle simulation ;), nor the leaves, so if they want to change something for unhappy players now, then just make the change at the tunnel border before entering undergound after queens park.
     
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  24. phil.elliott

    phil.elliott Well-Known Member

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    Abort abort...!
     
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  25. west coastway trains

    west coastway trains Well-Known Member

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    One train won’t drag water a long way into the tunnel, but the high intensity of the London Underground means that water will be carried quite a way
     
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  26. redrev1917

    redrev1917 Well-Known Member

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    Regardless of the whys, hows and what ifs.

    What should never happen is that if you have dynamic weather turned on a) we have no way of knowing that its started raining other than getting wheel slip. b) its impossible for the rails at Bakerstreet being dry then (because its started raining) the tracks are wet at Regents Park. Which is precisely whats happens now if running under dynamic weather.
     
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  27. Omnicitywife

    Omnicitywife Well-Known Member

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    That I can agree on.

    Unfortunately, nothing will change, including the vipers, that still are absurdly loud after all these years.
     
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