Thread: Deprivatisation of railways
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Old 07-04-2004, 09:50   #54
SMHarman
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Re: Deprivatisation of railways
Quote:
Originally Posted by cjmillsnun
One thing I would like to add. The tell-tale wire in the Severn Tunnel is NOT a trip-wire (as in automatically activated by the presence of foreign objects). It is a device that is used to alert signalling staff of an incedent (be it an accident, de-railment or a broken down train or for staff to alert signallers about foreign object)and is tripped by railway staff. It's major function is to put the signals leading into the tunnel to Danger Therefore stopping trains entering the tunnel.
Is this like the pair that run down all LU tube tunnels at shoulder height? The driver touches the pair together gets a little tingling sensation and the signals all go red?
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