Rro - Speed Enigma

Discussion in 'TSW General Discussion' started by Koni, Feb 6, 2024.

  1. Koni

    Koni New Member

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    Hi guys
    Driving S8 service between Hagen Heubing to Gevelsberg West we pass the semaphore (named F 663) showing reduced speed (Hp 2). The semaphore is preceded by a distant signal with 1000 Hz inductor.
    I guess that on the turnout the max speed is 40 km/h. But HUB doesn't confirm that. HUB says that we can go with max - 80 km/h.
    I checked what the AI driver do, and AI was driving at a 80 km/h.
    I tried to compare it with the real route situation, and on two videos (first, second) whith I found there is not a restriction.
    What speed do you keep at this place?
     

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  2. solicitr

    solicitr Well-Known Member

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    AFAICT, the game never enforces HP2s, except when the indication is hard-coded as line speed. One of course still has to reduce to the PZB 85/70/55 limit at the Vorsignal and stay there until the magnet clears, but the actual 40 isn't enforced by the game (nor in fact is it by real PZB, unless additional speed-trap boluses have been installed).
     
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  3. Jon from Rhode Island

    Jon from Rhode Island Well-Known Member

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    In TSW the speed reduction is typically enforced at the point of divergence. In other words the small bit of connecting track is coded as 40kph or whatever the diverging speed is. The HUD shows track speed which can be higher than signal speed.
     
  4. noir

    noir Well-Known Member

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    Permitted maximum speed of a train is affected by consist max speed, braking mass to line descend speed, safety system speed, signal speed and line speed.

    In reality, the lowest of all those is valid for you at every point. TSW only enforces line speed, nothing else, which is usually one of the highest of them - so it is not working as a good reference at all. In fact, for a lot of freight trains you can easily get max speed shown in the game as 160 or 250 km/h, while most freight wagons cannot go even over 100 km/h when loaded.
     
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  5. Koni

    Koni New Member

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    Right, the speed shown on HUB is misleading in all routes.
    But what about LZB? For example on Kassel - Würzburg route when we play freight scenario and using LZB it seems that max LZB speed is adapted to train (loco & cars).
     
  6. stateoftheartjonas

    stateoftheartjonas Active Member

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    On SKA at least LZB let me go 140km/h even though the rolling stock was only allowed to go 120km/h, so that speed's off too
     
  7. Koni

    Koni New Member

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    Perhaps this is correct LZB behavior (?). How does LZB know what the maximum speed of the wagons in our train is?
    It seems that LZB set max loco speed, and the driver should known what train max speed is.
     
  8. stateoftheartjonas

    stateoftheartjonas Active Member

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    Because you have to enter the train data before each journey using the ZDE. (TSW doesn't simulate this)
     
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  9. noir

    noir Well-Known Member

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    To most safety systems that have any sort of smarter logic behind it, you generally need to put in at least train length, train weight, brake percents, brake mode and max speed from the brake test report (that you get handed as a driver, and already contains all the info filled by yard master). These are all needed to properly generate optimal braking curves that fulfill the safety requirement of stopping you in time while not being too harsh to be a nuisance in daily operation.
     
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