Uk Slow Speed Signals

Discussion in 'TSW General Discussion' started by chris#8132, Apr 22, 2024.

  1. chris#8132

    chris#8132 Member

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    Hello,
    I couldn't find anything about this, so I'll ask here. Is there an overview of the slow speed signalling in the UK? For example, the announcement, how far it is to the start, etc.
    This would be helpful for some scenarios, like the Glossip Line or ECML.
     
  2. dnv3

    dnv3 Well-Known Member

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  3. jack#9468

    jack#9468 Well-Known Member

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    I may be able to help, but what do you mean by slow speed signalling?
     
  4. OldVern

    OldVern Well-Known Member

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    UK signals do not generally define a speed unlike the US or Germany. It is up to the driver’s route knowledge and experience combined with train weight and rail conditions to make an appropriate timely reduction. Approach control flashing double and single yellows inform the driver the junction has been set and you need to reduce to the appropriate line speed and if you approach a red signal or buffer stops too quickly on routes fitted with TPWS it will put the brakes in.

    As a rule of thumb and again depending on signal spacing and line speed when I sight a double yellow I aim to get my speed down to around 50 or 60 MPH. A single yellow I want to be passing at no more than 30 MPH. Approaching a red I aim to be doing no more than 15 MPH at the AWS magnet (if provided). Semaphore signals you need to be even more cautious as if the distant is at caution it might be the first Home signal at danger or you are clear through to the last section signal. Semaphore distant “on”, generally the brakes are in and I’m down to 25 MPH.

    Now admittedly I drive like an old woman in the sim and always run late, but generally avoid SPADs unless I make a stupid mistake. There are a few RL drivers about on the forum who may elaborate further on the correct technique to deal with UK signalling.
     
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  5. chris#8132

    chris#8132 Member

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    I mean the temporary Speed restrictions. The yellow signs.
     
  6. OldVern

    OldVern Well-Known Member

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    Well the routes that have these in TSW as part of a scenario get it totally wrong. In the case of a TSR you should get a warning board and portable AWS magnet at a suitable braking distance. You next get the speed or as it used to be called commencement board at the start of the restriction followed by the T (termination) board at the end of the restriction. Whoever put these in the scenarios at DTG allowed insufficient braking distance from the warning board to commencement, they dropped unnecessary “R” reminder boards along the restriction and followed the T board with a Spate board. The spate board is only placed when the restriction has been lifted earlier than in the notices ands would be in place of all three of the expected warning, speed and termination boards.
     
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