Hidden Speed Limit Changes On German Routes

Discussion in 'General Discussion' started by PhÜnKî_Rø0sTā, Mar 31, 2024.

  1. PhÜnKî_Rø0sTā

    PhÜnKî_Rø0sTā Well-Known Member

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    Hi All,

    not sure if anyone else has noticed this issue, but on some German routes while driving with the HUD, I found that I get done for speeding in career scenarios but the train is nowhere near where the speed limit changes. Is this a known bug? If it is, is there a fix for it
     
  2. triznya.andras

    triznya.andras Well-Known Member

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    a) Signal speeds
    b) The bug where upon switching cameras (back to the cab) signaling momentarily overrides the track speed
    c) Unrelated entirely, some track speed changes are not on the HUD, which is entirely a choice (automatic vs marker only), usually at switches, but Koblenz-Trier has one where the branch merges, also Donner several between Roseville and Truckee (often remarked)
    d) Something else?

    Even if a generic bug, remember, it's always best to be specific. Route, location, train, scenario, last signal if applicable, etc.
     
  3. 749006

    749006 Well-Known Member

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    So you want a fix for something that happens at some places on some German routes?
    Give us an example - a picture or a location and on which route.

    Some of the Speed changes are enforced by Signals and you have to know what they mean.
    You do not always get a Speed Board if you are going thru a Junction as the Signal tells you how fast you can go.
    And the restriction applies From the Signal even if the junction is further down the track.

    Have a watch of this as it might help
     
  4. PhÜnKî_Rø0sTā

    PhÜnKî_Rø0sTā Well-Known Member

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    Interesting, my knowledge of German signalling isn't the best - same with the PZB, LZB and Sifa Systems.

    Even when you go through a yellow signal on a German route, the train goes into emergency. i'm guessing that's the PZB kicking in because i was going too fast?
     
  5. triznya.andras

    triznya.andras Well-Known Member

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    No. I sometimes fall for it!
    Yellow is a combination (even in the UK) of a clear main and a warning advance.
    With Pzb, any sort of warning signal (below 90 kph) requires to be acknowledged.

    I think in real life there is always an audible alarm, just like in the UK. A buzz, Zugbeeinflussung (train influencing / control). Based on cab ride audio at least. In the game it's often misconfigured to be the button sound, similar to how Sifa is initially silent.

    Back to the yellow...
    There are three types of warnings in Pzb practically:
    • the double yellow, which means danger ahead, must stop;
    • the yellow-green, which means slow to 40 kph;
    • the speed warning, which comes in several forms: static speed board with a magnet, advance signal with a number panel (fixed or dynamic), flashing green (meaning 60 kph), and the ÖBB versions for 60, two greens and one yellow (followed by two greens on the main).
    So in essence it's the same as in the UK with semaphores and then color lights.
    The speed warning is a bit random, because 120 kph is sometimes a warning (without Pzb effect), other times a clear. 160 kph is definitely a clear, since it is max speed for Pzb anyway. My favorites are the combinations, though, a standard warning (40kph) with a board above (50-60 etc) sometimes requires 40 (dynamic signal is stronger than boards), sometimes the board (board is part of the dynamic signal, usually at junctions where it's all about the switch speed).
     
  6. PhÜnKî_Rø0sTā

    PhÜnKî_Rø0sTā Well-Known Member

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    Then there's LZB and AFB which are a complete game changer - tried to leave a station on the Leipzig - Reisa route (I think it is) and had either AFB or LZB active, train wouldn't let me go above 10km/h, and then the emergency brakes came on out of nowhere (even though I had acknowledged PZB when pulling away).

    Probably hence why I drive UK trains mostly - at least they're easier to drive than US and German trains. (And they have a very similar signalling system to the trains in my home state of Queensland in Australia. Our suburban network in Brisbane uses virtually identical signalling and AWS as the UK)
     
  7. 749006

    749006 Well-Known Member

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    AFB is like a cruise control on the Class 90, 91 or 92 and only activates when you switch it on. When you set the speed with either the handle or the Y and C keys a marker moves around the dial to indicate what is the maximum speed the loco will run to.

    LZB activates automatically on routes that are fitted and tells you how fast you can drive and when the next speed change takes place - if you don't brake for a speed change or signal the system will do it.
    LZB sees further down the line so you can drive fast on conventional signals.

    Have a watch of this which is ok apart from Matt talking to other people in the chat - it starts with LZB


    One of the things Matt says in the video is don't turn the PZB on - or switch it off if its on by default.
    Also don't turn Sifa on - basically the UK Drivers Vigilance System - until you have learnt other stuff.

    When I run German and Austrian routes I turn the SIFA and PZB Off

    Peter
     
    Last edited: Apr 1, 2024
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  8. triznya.andras

    triznya.andras Well-Known Member

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    Apart from "the full experience" :)
    Some scenarios force Pzb on. That's how I learned. Bit of a silly word but feels accomplished.
    Sure, a lot of scenarios require Pzb off, too, due to timetable.
     
  9. PhÜnKî_Rø0sTā

    PhÜnKî_Rø0sTā Well-Known Member

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    Ok cool.

    Yeah I just want to have an experience driving as realistic as possible. On some UK content I have, I don't even run with the DSD on, just AWS.
     
  10. Kim Olesen

    Kim Olesen Well-Known Member

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    Anything below 100 actually.

    There is no acustic warning in real life.
     
  11. triznya.andras

    triznya.andras Well-Known Member

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    You made me read :) We are both correct.
    Wikipedia: Speed limits higher than 70 km/h cannot be enforced using permanent 1000 Hz inductors, as this would slow down most or all trains much below the speed limit. Therefore, two kinds of speed traps are used to enforce these limits. Both types work similar: Once a train is detected, they will disable the connected 1000 or 2000 Hz inductor after a certain time. Depending on train's speed, the train will pass the inductor at active or inactive state. (Article continues with details on +15 kph etc.)

    As for the sound, I'll pay further attention but I often hear the buzz sooner than the click. And sometimes there is a buzz and intensive smashing. Occasionally cursing follows as the train stops. :D

    You could be a driver so I'm not meaning to argue, more like defending myself sort of, and will pay attention.
    I know that in game there is usually no sound, which is why it is easy to miss. I had a tendency to miss 40 over 40 (typical siding entry) because hey, I already acknowledged it - oh well, the previous one.
     
  12. Kim Olesen

    Kim Olesen Well-Known Member

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    Lol at wiki. Any speedlimit below 100 can actually be enforced with a 1000hz magnet. Even a 90km/h speedlimit warning can have a magnet if safety regulation criteria are met. Then you must brake down below 85 and then speed up again when the yellow light turns off (and you have used the Freitaste)

    What many fail to understand is that you do not acknowledge magnets. You acknowledge signals. Pass anything that warns of anything below 100 and you HAVE to acknowledge. Even distant signal repeaters must be acknowledged. It is really very simple, but there are so many myths, probably brought on by train simmers posting inaccurate advice. Often, but not always, there will be a magnet that will put the train in restrictive mode. If there is you have to brake the train to below 85 in 23 seconds.
     
  13. 749006

    749006 Well-Known Member

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    Some of the first DB locos Kuju 101, 143, 151 & vR 120 have a Basic System where you wait for the warning sound then cancel it.
    Similar to the AWS on UK trains and the warning system on Swiss trains.

    Much easier to drive with that system
     
  14. DrTrenchcoat

    DrTrenchcoat Well-Known Member

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    PZB takes some getting used to, but once you understand it it's actually pretty easy. The difficult part when youre learning is figuring out what youve done wrong and why pzb has emergency braked you, I'd recommend the christrains flirt for learning pzb, it'll give you effectively an error code whenever it dumps your brakes that you can reference with the the train's manual to see what you did wrong
     
    Last edited: Apr 2, 2024
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  15. eldomtom2

    eldomtom2 Well-Known Member

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  16. Reef

    Reef Well-Known Member

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  17. DrTrenchcoat

    DrTrenchcoat Well-Known Member

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    Can't second the recommendation enough that site is super useful. I'd also recommend this graph from the zusi manual for visually explaining the speed curves
    image-9.png
     
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  18. Kim Olesen

    Kim Olesen Well-Known Member

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    That’s because it’s got nothing to do with PZB, but is a crude “one size fits all implementation of “some kind of sequrity system”, made for early TSC products. I don’t even think brake curves are enforced.

    ZUB is more complex in real life than the Rivet Games implementation. It has brake curves and it has “frei taste” just like pzb. In fact it is much closer to pzb in real life than on the Rivet Games products. Do they even enforce a brake curve? I think RG just took the aforementioned crude archaic “fits all” oversimplified protection system, and called it ZUB.
     
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