[Talk-GB] Railway bridge numbers

Philip Barnes phil at trigpoint.me.uk
Tue Apr 9 14:17:05 UTC 2013


Hi Andy
Seems a good idea. I would suggest a new tag, such as bridge_ref. 
I have come across cases of canal bridge numbers using the ref tag, which causes navigation instructions to be
continue onto A41
continue onto 107
continue onto A41

that one was near Tarporley.

Most canal bridge numbers are in the name tag, but I am not sure that is right either.

Phil (trigpoint)
--
 
Sent from my Nokia N9
 


On 09/04/2013 14:54 Chris Hill wrote:

Some railway bridges near me have already been added to a bridge relation, not by me, that includes the reference. See http://www.openstreetmap.org/browse/relation/446579 as an example. I don't know if this a good idea or not, nor if the number is what you have in mind.

Cheers, Chris
OSM User chillly


Andy Mabbett <andy at pigsonthewing.org.uk> wrote:
All railway bridges (over- and under-) in the UK have a unique number.
often carried on a metal (more recently plastic) identification plate,
or painted on:

http://www.semgonline.com/structures/numbering.html

Among other things, these are used to speedily identify the bridge in
case of a vehicle strike which may pose a danger to trains or other
traffic:

http://www.networkrail.co.uk/aspx/3563.aspx

Do we have a scheme for tagging UK railway bridges with their numbers?
I have looked on Wiki, and can't find anything, and my local bridges
are either not tagged; or tagged (for example) ref = B4124:

http://www.openstreetmap.org/browse/way/103233329

which does not identify that number as being a NetworkRail reference
(if indeed it is, being on a road overbridge maintained by the local
authority).

If we do not have something more specific, I'm happy to draft
something for discussion.

--
Andy Mabbett
@pigsonthewing
http://pigsonthewing.org.uk




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