cso
Posts: 1,043 
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Post by cso on Jul 17, 2010 6:44:04 GMT
What is the significance of the (apparently) new boards at the drivers end of each platform with a collection of black/yellow chevrons and a green board with S8 on it? I am assuming it's a stopping board for drivers so that they know where to stop... but if that's the case, why don't they need something like that just now  |
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Post by t697 on Jul 17, 2010 8:19:07 GMT
What is the significance of the (apparently) new boards at the drivers end of each platform with a collection of black/yellow chevrons and a green board with S8 on it? I am assuming it's a stopping board for drivers so that they know where to stop... but if that's the case, why don't they need something like that just now As I expect you have worked out, they are for S stock. With the old trains, T/Ops line up with the platform OPO mirrors or monitors which have been aligned to match the stop mark in the four-foot (track). With S stock having in-cab OPO CCTV, they don't use the platform mirrors and monitors. The sightlines don't make it easy to use the diamond in the four-foot, hence the array of new markers. The green and chevron aligns with the drivers eyeline through the edge of the windscreen. The other diamond type aligns with the cab side window. We'll see soon how well it all works. |
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North End
Beneath Newington Causeway
Posts: 1,769
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Post by North End on Jul 17, 2010 8:19:36 GMT
What is the significance of the (apparently) new boards at the drivers end of each platform with a collection of black/yellow chevrons and a green board with S8 on it? I am assuming it's a stopping board for drivers so that they know where to stop... but if that's the case, why don't they need something like that just now It's a stopping mark specifically for S stock trains. Existing trains use signage mounted in the four-foot - either a white diamond marker, or a white sign with an "8" indicating the position for an 8-car trains. Though in reality the most important stopping consideration is to stop so as to get a decent view of the monitors. The green board is the current standard. The Northern Line got these in preparation for the 95 stock, but there are still a lot of old markers still in position - including some '4' car stop boards in a few locations. No '9' car stop boards as far as I know though! |
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Ben
fotopic... whats that?
Posts: 4,282
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Post by Ben on Jul 17, 2010 11:42:59 GMT
UN were quite retiscent of naming the few locations with '4's remaining, for fear of officialdom consiquently expundging them. Considering what may have happened in places following a different thread concerning hisorical items still in situ, perhaps there is a bit more creadance to this fear than at first glance. Aside from what, one wonders what a '9' would reach on eBay to the right audiance!
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cso
Posts: 1,043
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Post by cso on Jul 17, 2010 19:09:57 GMT
Cool, that's exactly what I thought last night when a friend asked me.
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