That's very interesting, thanks, I shall look out for a talk on the selection process - and I would love to hear how the tin is to be applied. I can't imagine that electro-plated tin will be anywhere thick enough, and "tin-plate" production for food cans must be either extinct or completely unable to deal with railway-sleeper thickness metal. More questions than answers!Passengers between South Wales and Bristol reminded to check before travelling ahead of essential upgrade works in the Severn Tunnel
Trains will be diverted or replaced by buses between Friday 9 and Sunday 18, and on Sunday 25 June, as Network Rail works around the clock to renew the tracks in the Severn Tunnel.www.networkrailmediacentre.co.uk
(I wonder whether suitably selected or treated timber would be the best option? I thought that steel sleepers were only chosen as a cheap alternative to timber where the ballast still had a limited life and a full deep-dig relay could be postponed.)
A
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