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Post by metrailway on Sept 6, 2012 12:17:45 GMT
I was travelling on the Chiltern Line to Brum recently and noticed on both the SB Met and Jubilee lines just north of Willesden Green a sign. This sign was a black triangle on a white circular background. I also noticed the same sign south of West Ruislip on the NB road.
What does this sign mean?
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Post by harrowman on Sept 6, 2012 13:30:52 GMT
I was travelling on the Chiltern Line to Brum recently and noticed on both the SB Met and Jubilee lines just north of Willesden Green a sign. This sign was a black triangle on a white circular background. I also noticed the same sign south of West Ruislip on the NB road. What does this sign mean? End of Restriction Indicator. |
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Post by trt on Sept 6, 2012 13:50:06 GMT
What about the big black spots on a fluorescent green/yellow background that you see on the mainlines, e.g. at Bushey?
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Post by Deleted on Sept 6, 2012 15:35:03 GMT
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Post by Deleted on Sept 6, 2012 15:35:14 GMT
the sign at willesden green is a commencement of a speed restriction and then the termination of the restriction over a bridge it applies to engineers trains only
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Post by metrailway on Sept 8, 2012 21:48:29 GMT
What about the big black spots on a fluorescent green/yellow background that you see on the mainlines, e.g. at Bushey? These are sighting boards for track workers and are not used by drivers. These boards are unique to the WCML and are placed about every 1/4 mile between Bushey and Hemel Hempstead. |
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Post by trt on Sept 10, 2012 9:29:19 GMT
What about the big black spots on a fluorescent green/yellow background that you see on the mainlines, e.g. at Bushey? These are sighting boards for track workers and are not used by drivers. These boards are unique to the WCML and are placed about every 1/4 mile between Bushey and Hemel Hempstead. Ahh! Thank you. Not sure how they are used, but that at least completely blows out my previous hypothesis that they might be related to the overhead supply and where the feeders are. :-) They are rather conspicuous. |
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