Niddertalbahn - End Of Speed Restriction Rules

Discussion in 'TSW General Discussion' started by neonym#9140, Mar 6, 2026 at 8:16 AM.

  1. neonym#9140

    neonym#9140 Active Member

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    Hi, I want to ask, what is the rule for a speed restriction end on the Niddertalbahn route? I have read some articles about German signalling and I thought that speed restrictions given by station entry signal when ends when I get back to the main track. But for example in the Stockheim station there is speed restriction which ends when passing opposite entry signal. Is this prototypical for Niddertalbahn routes time period or is this a bug?
    Sorry for my english and thanks in advance for answers.
     
  2. OldVern

    OldVern Well-Known Member

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    Can’t answer specifically but there is an issue with signal speeds generally on German TSW routes that they are not keyed to the signal but to the actual track location (e.g. set of points) where the defined lower infrastructure speed commences.
     
  3. indeed_w

    indeed_w Member

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    For the Stockheim route I am not sure because I don't own it. But in Germany you should generally be allowed to get back to track speed after clearing all switches (with the whole train) if the signal was the last signal of the station.

    The thing is with signalled speed like in Germany the same piece of track can have different speed limits depending on the way the train is headed. I think American, Austrian and Swiss routes are affected in the same way because all these countires have signaled speeds where the absolute track speed can be higher than what you are allowed to drive. It would probably be quite complicated to always show the allowed speed considering all signalling rules so I guess the shown speed is always the max speed for that piece of track.

    For speed signalling rules in Switzerland (where I am a train driver) you are sometimes even allowed to accelerate as soon as the head of the train reaches a certain position, it's not always the end. That would be even more difficult to implement (and even professional simulation and timetabling calculations struggle to properly respect these rules)
     
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