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Wherry lines queries

Current and future British signalling (UK except Northern Ireland)

Re: Wherry lines queries

Unread postby colin1501 » Wed Sep 16, 2015 6:26 am

Many thanks to ex Probationer and everyone else who has provided information on this thread - all very useful and much appreciated.

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Wherry lines queries - resignalling?

Unread postby brick60000 » Fri Aug 18, 2017 11:27 am

Hi all

Sorry to bring up an old thread but thought this would fit here as much as anywhere else. Does anyone have any news on dates for the resignalling? (Perhaps with work start dates?). I'm keen to go and photograph it before but am likely not going to get around to it this year!

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Re: Wherry lines queries

Unread postby Fast Line Floyd » Fri Aug 18, 2017 12:24 pm

Currently at 31 March 2019 but that is bound to slip as time progresses.
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Re: Wherry lines queries

Unread postby Mike Stone » Fri Aug 18, 2017 5:35 pm

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Re: Wherry lines queries

Unread postby steve thompson » Fri Aug 18, 2017 9:26 pm

OK so what are they talking about ! SIL software, trackside collaterals! and its I kilometres not miles.
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Re: Wherry lines queries

Unread postby Fast Line Floyd » Sat Aug 19, 2017 5:45 am

steve thompson wrote:OK so what are they talking about ! SIL software, trackside collaterals! and its I kilometres not miles.

SIL = Safety Integrity Level. This is the way that computer based safety systems (not just the railway) are judged on their safety, there are 4 levels with SIL 4 being the highest that is used for railway interlockings and fly by wire aircraft controls. I must admit though as a press release this has obviously been put together by someone who knows nothing about what they are talking about. You will find that many companies use kilometres rather than miles these days including railway companies because Europe was forcing us down a metric future for the railway.
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