[Talk-gb-westmidlands] Old Longbridge building outlines

[Andy Robinson]

Matthijs, that’s some useful searching. I knew that BT had some cable tunnels but had not realised they were cold war facilities and as extensive as they are. When I was at Aston in the 1980's there was a longstanding rumour surrounding access to a bunker system from there but the info suggests perhaps anything at Aston may have been limited, I was always sceptical.

Mapping the BT Anchor exchange facility and cable tunnels into OSM would be difficult because these facilities are very three dimensional and rarely do the plan representations properly depict the underground layout, especially as proposed plans and as-built drawings often differ wildly.

Cheers
Andy

-----Original Message-----
From: Matthijs Melissen [mailto:info at matthijsmelissen.nl] 
Sent: 21 August 2014 21:32
To: OSM Group WM
Subject: Re: [Talk-gb-westmidlands] Old Longbridge building outlines

On 21 August 2014 20:23, stuart lester <stulester at googlemail.com> wrote:
> Also I wondered if anyone had any good sources for mapping underground 
> Birmingham. I am interested in both tunnels, etc. but also underground 
> infrastructure.

User bigfatfrog67 has mapped (part of) Anchor ( in a way that does not render on osm.org). I think he copied from http://www.ringbell.co.uk/ukwmo/Page241.htm. There is also some information on http://www.subbrit.org.uk/rsg/sites/b/birmingham_anchor_exchange/index.html.
I'm not sure how reliable these sources are, and they certainly don't include the whole system. It would be nice if we could get more reliable information, but this might be rather hard.

There is also a tunnel linking the Mailbox with New Street station.
This tunnel has been open during events for the public, so for this one we probably should be able to figure out where the entrances are by asking people. We currently don't have it mapped.

I also know there are tunnels in Longbridge at the car factory, but I have no further information about them. See also this freedom of information request:
https://www.whatdotheyknow.com/request/shadow_factory_tunnels_longbridg

For the Birmingham tunnels, this freedom of information request might be of help: https://www.whatdotheyknow.com/request/underground_structures_in_birmin

Did you have any other underground structures in mind?

-- Matthijs

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