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Tomnick's latest activity

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    Tomnick replied to the thread Stonehaven Signalling Observation - Question.
    Rushing to put signals back behind a train is a sure fire way of putting the section signal back too soon. Once the home signal's back...
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    Tomnick replied to the thread Definition of absolute block signalling.
    The main focus is, sensibly, on the signal indications themselves and the implications for drivers. There's relatively little emphasis...
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    Tomnick replied to the thread Facing point locks.
    Anywhere that I've ever come across with such an arrangement, it's been provided for all signalled moves – indeed, it's far more common...
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    Tomnick replied to the thread Facing point locks.
    This isn't correct – a mechanical set of points will often, if not always, have mechanical detectors in the wire run for any semaphore...
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    Tomnick replied to the thread Facing point locks.
    If the points that become facing are mechanical, and have no electrical detection, how do you know that they've responded to the lever...
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    Tomnick replied to the thread Two trains on single track.
    It's on the Loop Line, all in tunnel, and presumably reflects London Underground practice. There are some repeaters, but not all stop...
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    Tomnick replied to the thread Two trains on single track.
    Yes, absolutely. I think we all agree on that. The misconception is that that means that it's Absolute Block, and it's a common...
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    Tomnick replied to the thread Two trains on single track.
    Greenford is one such location! Swinderby, too.
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    Tomnick replied to the thread Two trains on single track.
    It shouldn't be – it *really* shouldn't be. The presence of semaphores does not equate to Absolute Block. You can have AB without...
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    Tomnick replied to the thread Two trains on single track.
    Greenford isn't worked under AB regs in any direction, though. On the other hand, the vast majority of boxes that *do* work AB have at...
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    Tomnick replied to the thread Hope Valley Capacity Scheme updates.
    Yes, I see what you mean, and you're right. In this case, the TPE would surely have closed the gap enforced by the Chinley - Edale...
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    Tomnick replied to the thread Hope Valley Capacity Scheme updates.
    The distant signals over the Hope Valley now are all either: - Existing distant signals in the AB territory from Earles westwards. This...
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    Tomnick replied to the thread Two trains on single track.
    Doesn't mean that it's not under Absolute Block regs (which I think it is, albeit somewhat muddied by the fact that it works TCB in one...
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    Tomnick replied to the thread New Mills Central landslip - 6 week closure.
    Worth noting that there's been a significant, very noticeable dip in the Down line at that location for years – it's obviously got...
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    Tomnick replied to the thread Hope Valley Capacity Scheme updates.
    The longest section on the approach is Chinley to Edale, which is only a mile or so longer than the length of Cowburn Tunnel – so, even...
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