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Recent content by furnessvale

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    Layer of tarmac underneath ballast - purpose and benefits

    When I worked on the perway, we used to sand blanket wet spots to stop clay pumping through the ballast. It involves a foot of sand containing a thick polythene sheet below the ballast layer. This may be a more modern idea to the same end.
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    Rail Freight Flows and News UK

    I wouldn't be sure about that, thinking more about illegal entry to the UK rather than customs.
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    Rail Freight Flows and News UK

    I would imagine security at Dollands Moor is in a different league to most other potential storage spaces in the UK. That begs the question, what is that train carrying?o_O
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    Why are locomotives so big?

    However, when the loco gets too heavy, or travels too fast it needs the brakes on the train to help stop it. Hence the speed limit applied to light locos.
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    Class 93 Tri-mode Loco

    Whatever happened to dynomometer coaches? It would stop all this having to wander round the system looking for naughty bits of railway to use for testing.
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    GBRf Class 99 - 30 locomotives now ordered

    Interesting that increased top speed is mentioned by the fairly simple expedient of changing the bogie dampers and reprogramming the computer.
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    GBRf Class 99 - 30 locomotives now ordered

    Routes are one thing but paths on busy routes are something else. If a 99 can open up paths eg over Shap/Beattock, that would not be possible with a 66, then the £££ question takes on a new meaning.
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    Should BTP be absorbed into the regular Police forces?

    If BTP are absorbed into local forces the immediate effect will be no permanent presence of police officers on railway property. ALL officers will be deployed in the force area and will respond to calls as priorities within that area demand. For example, a dispute between revenue staff and...
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    Rail Freight Flows and News UK

    No. The depressed centre indicates they are the type of powder tanks used for cement. I have no idea if they are new build or repurposed from cement work.
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    Stressing Bullhead Rail on the London Underground

    I doubt there is any need to destress CWR inside a long tunnel section like the underground. Leave the rails where they are to be installed and they will naturally take up the ambient temperature. Having said that, removal of fishplated joints gets rid of a maintenance requirement irrespective...
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    Class 93 Tri-mode Loco

    Whatever happened to the days when a route was cleared to a certain profile and if stock was built to that profile it ran without further trouble?
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    Preston PSB signal PN14 near Euxton

    It would seem to be common sense to me that if you have insufficient block sections before the stop blocks, you cannot display the green aspect, or even the YY as you get closer.
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    Could Welwyn North be closed to speed up journeys over the Digswell viaduct?

    Indeed, such considerations did not stop the Swiss doubling the BLS main line.
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    High Track Temperature

    The highest rail temperature I ever recorded when destressing was 52C.
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    Labour Spending Review

    I don't wish to put a wet blanket on things, but I will. Are we all sure that these figures are ADDITIONAL funds or just the release of the next tranche of cash for pre existing projects?

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