A4198

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vlad
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A4198

Post by vlad »

At certain zoom levels (here), the OS claim that Thamesdown Drive, in north Swindon, is numbered A4198. That's not marked on any other maps and I can't find any proof of the number elsewhere, so does this actually exist or are the OS jumping the gun or just providing a copyright trap?

Certainly Thamesdown Drive seems to be of sufficient quality to merit a number so it seems strange it's unclassified. Am I missing something?
"If you expect nothing from somebody you are never disappointed." - Sylvia Plath
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rileyrob
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Re: A4198

Post by rileyrob »

I thought I remembered something here in the forums about this, and doing a search for Thamesdown comes up with all sorts of stuff, but nothing conclusive. It doesn't surprise me that the road could have been classified, but primary route? Especially one with a poor S2 link to the A419. Curiously my iPad app outside doesn't show this (yet).

Edit - this link from one of those old threads still shows a rogue 'A' on signage approaching this road:
https://maps.gstatic.com/m/streetview/? ... 25,,0,-3.2
Rob.
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Steven
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Re: A4198

Post by Steven »

Well, either way we could do with a Wiki page on it - policy is to have pages for roads that are just mapping errors (like A65(M)), say they're errors or dubious as heck, and put them in the "Disputed Numbers" category.
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From the SABRE Wiki: A65(M) :


The A65(M) appeared on the Leeds/Bradford inset on the 2004 10 mile OS map. It is either a mapping error, or a deliberate trap street, as it is the same bit of road as the A64(M). [[Category:Disputed

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rileyrob
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Re: A4198

Post by rileyrob »

Done: A4198
Can't get the OS map to load in the routebox, which I seem to remember is a known bug? Probably missed a few other bits too, it's a long time since I created a routebox page from scratch!
Rob.
My mission is to travel every road and visit every town, village and hamlet in the British Isles.
I don't like thinking about how badly I am doing.

From the SABRE Wiki: A4198 :

The Summer 2014 revision to the online version of the Ordnance Survey 1:250,000 mapping layer has assigned the number A4198 to the previously unclassified dual carriageway of Thamesdown Drive around the northern edge of Swindon. As the mapping shows the A4198 is a Primary Route, given that the western end does not connect with

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