A4199?

[garyhawkins01]

I've just been idly browsing round the latest edition of the Ordnance Survey ZoomStack Open Data in QGIS and I've just noticed the map now claims that Martin Dalby Way and Paradise Orchard in Aylesbury is now the A4199. This is news to me because the signs on the ground definitely don't say that (actually they mainly say A413 which is equally wrong), or certainly didn't earlier today. Google Maps doesn't have it as a classified road at all, which is what I understood it to be. Whilst it could be a deliberate mapping error, this road was built as much as a bypass for the town centre between A41(W) and A413(N) as much as it was as an access road to the Berryfields estate. Certainly when the road was built the council hasn't adopted it, and I thought that was still the case now.

Anyone have any ideas what's going on?

[Berk]

The OS map does not show a number, only that it’s a non-trunk A-road. Both on the Explorer and Landranger scales.

[Nathan_A_RF]

OpenStreetMap just has it as an unclassified road

[owen b]

I pay for an OS subscription and it's showing as A4199. There's also a new branch of the A418 turning off the existing A418 at Bierton, about one mile in length heading south east.

[multiraider2]

I've asked the Buckinghamshire Highways Facebook page to confirm. Don't know if they will. The last post on there re Martin Dalby Way was in 2019 and it was certainly unadopted then.

[garyhawkins01]

If it's any help, I don't remember this road being classified in the Dec 2022 release of OS OpenData Zoomstack, but the Jun 2023 release seems to have it. So if the A4199 number is correct, it will have been classified relatively recently, I'd have thought.

[Richard_Fairhurst]

I pay for an OS subscription and it's showing as A4199. There's also a new branch of the A418 turning off the existing A418 at Bierton, about one mile in length heading south east.

Signage (seen on GSV) seems to suggest that the A418 now follows Stocklake, Bellingham Way, and Mike Griffin Way, rejoining the existing route north/east of Bierton.

[owen b]

I pay for an OS subscription and it's showing as A4199. There's also a new branch of the A418 turning off the existing A418 at Bierton, about one mile in length heading south east.

Signage (seen on GSV) seems to suggest that the A418 now follows Stocklake, Bellingham Way, and Mike Griffin Way, rejoining the existing route north/east of Bierton.

Interesting, thank you, that makes sense. Ordnance Survey hasn't caught up yet.

[garyhawkins01]

The signage around there has (mistakenly) changed a few times; my understanding of it is that eventually the A418 will go vis Stocklake and the Kingsbrook estate instead of via the prison and Bierton, but I don't think the existing signs on the 'old' A418 have been updated yet. I'll be travelling that way tomorrow so I can have a look for myself. If/when the change happens I very much doubt the locals approaching from the Elmhurst Road direction wanting to head towards Leighton Buzzard/MK will bother to follow the new A418 and just carry on going through Bierton instead

Something tells me the rerouting of the A418 is possibly something to do with the as yet unbuilt link road between Mike Griffin Way and the Aston Clinton Bypass roundabout.

[garyhawkins01]

I drove past these signs (junction of Stocklake/Bellingham Way/A4157) last weekend in both directions. In the eastbound direction, the signs have green patches but do not have any mention of a road number, and in the westbound direction they are green patched with (A418) for both the Stocklake and Bellingham Way arms. The existing A418 road through Bierton village is still signed as A418.

[garyhawkins01]

I have had a reply from Buckinghamshire Council about this, after I finally remembered to ask them a couple of days ago. It appears the intention is for the council to allocate A4199 to the Berryfields Link Road, but only at the point the road gets adopted (which hasn't happened yet) and the DfT have subsequently approved the road classification. It appears someone has jumped the gun and sent the wrong paperwork at the wrong time, which has caused Geoplace to send the wrong data to Ordnance Survey, and that is why the number has appeared erroneously early on the map. The council say they're going to get the mistake corrected.

At least that clears the mystery up... we might need a new A4199 page before too long though!

[wrinkly]

Shown as A4199 on the latest Landranger mapping, viewed via the site mentioned in the first post of the following thread:

viewtopic.php?t=45154

The latest Explorer scale, going via the same site, shows it as an A road but does not show a number.

Berk, I think you mean non-primary, not non-trunk. OS mapping no longer distinguishes trunk roads (at least at the popular scales?)

Edit: I failed to notice this thread until today and have just realised most of the posts are some months old. Going via streetmap, the 25k is the same with an unnumbered A road, while the 50k changes from A road to yellow road at a grid square boundary!

[Truvelo]

I'm surprised there's no Wiki article for this number yet. Even if it's just a speculative or incorrect number the Wiki shows them.

[Steven]

I'm surprised there's no Wiki article for this number yet. Even if it's just a speculative or incorrect number the Wiki shows them.

As a reminder, anyone can add it, and it's not hugely challenging to do so.

Maybe someone new to it might want to give it a go?

[garyhawkins01]

I've had a go at creating the A4199 page on the Wiki. First page I've done, so apologies for any mistakes in creating it!

[Ritchie333]

I've had a go at creating the A4199 page on the Wiki. First page I've done, so apologies for any mistakes in creating it!

Looks fine to me. I've added a trace of the route and changed the type to "future non primary", both of which are minor things.

[garyhawkins01]

Smashing. I'll try and get some photographs soon as I live not too far away from it, but I might wait until the council have fixed all the botches in the signs first (which to be fair was probably the fault of the developer who built it rather than the council!), which they did say they were going to do in the email they sent to me.

[Steven]

I've had a go at creating the A4199 page on the Wiki. First page I've done, so apologies for any mistakes in creating it!

Looks fine to me. I've added a trace of the route and changed the type to "future non primary", both of which are minor things.

Yeah, I've just added a load of links in the text, but it's great! Thank you.