Roads with the smallest percentage in their home zone?
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- Gareth Thomas
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Roads with the smallest percentage in their home zone?
A good example is the A47. There is a 5.1 mile stretch from Birmingham to the A452, and then a 2.1 mile stretch from Nuneaton to the A5 where it leaves Zone 4. That's 7.2 miles out of a 157.9 mile stretch, 4.56% of the total road.
A couple of criteria:
Roads that are wholly out of zone do not count (A42!).
We'll only be using the current routes of the roads, so in my A47 example I am not including the former A47 that is now B4114.
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Re: Roads with the smallest percentage in their home zone?
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Re: Roads with the smallest percentage in their home zone?
From the SABRE Wiki: B2177 :
The B2177 is a nice little drive over the top of Portsdown Hill and then down in to Fisher's Pond in south Hampshire.
The road starts in the centre of Bedhampton, with the B2149 and the B2150, and from here heads west. At a mini-roundabout it sends a short spur down to A3(M) J5, the A2030 and the A27. This section of the road would have formed part of the A27 before Havant was bypassed. The mainline of the B2177, incidentally, was
Re: Roads with the smallest percentage in their home zone?
It was probably slightly less in the '60s when it went straight from the middle of Hemel to the middle of St Albans.
A604(M) only had the North bound slip round on zone 6, but isn't very long anyway.
A282 is probably more in zone 1 than 2
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Re: Roads with the smallest percentage in their home zone?
I'd be inclined to say that doesn't count, as it's part of the A604.
I thought so too, but it seems not. It's about 2.3 miles in zone one and 3 miles in zone 2 - measuring from the exit of the A12 roundabout to the entry of the A2 one, and assuming the zone boundary is the middle of the Thames.
Re: Roads with the smallest percentage in their home zone?
From the SABRE Wiki: A620 :
The A620 is a relatively short A-road in north Nottinghamshire.
The road begins at a GSJ with the A1 (old A614) at Ranby, a village it now bypasses since the A1 was routed through here.
A right-hand bend takes us onto a long straight section past Ranby prison, which is occasionally in the news as it is home to people you wouldn't necessarily want to have as dinner guests - namely some of the country's most infamous serial killers. We enter a wooded area rather
- SouthWest Philip
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Re: Roads with the smallest percentage in their home zone?
I guess it comes down to how you interpret where the zone boundary goes. The A1, of course, originally took the route of the A638 in these parts.
The A620 should, theoretically, extend a little way west of the A1 to meet the northbound slip roads. However the OS maps suggest it actually terminates at the southbound slip roads.
Another nearby road that in entirely out of zone is the A6182, which is perhaps a little surprising as it was created after the Doncaster bypass was built.
From the SABRE Wiki: A620 :
The A620 is a relatively short A-road in north Nottinghamshire.
The road begins at a GSJ with the A1 (old A614) at Ranby, a village it now bypasses since the A1 was routed through here.
A right-hand bend takes us onto a long straight section past Ranby prison, which is occasionally in the news as it is home to people you wouldn't necessarily want to have as dinner guests - namely some of the country's most infamous serial killers. We enter a wooded area rather
Re: Roads with the smallest percentage in their home zone?
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Re: Roads with the smallest percentage in their home zone?
Re: Roads with the smallest percentage in their home zone?
One interesting historic example is the A447. It is now completely out of zone and has been since the M69 opened, but even in its longer original form it was only in the 4-zone for the first couple of miles from Wolvey to the A5, with the remainder of the route's 25 miles or so being in the 5-zone. This means less than 10% of the original route of the A447 was in its home zone.
(Just beaten to it for the A34!)
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Re: Roads with the smallest percentage in their home zone?
Never argue with an idiot. They will bring you down to their level and beat you with experience.
Re: Roads with the smallest percentage in their home zone?
It's only in zone between the Luton and Dunstable town centres. Perhaps 2 miles out of a total length just under 50. About half of its length is in the 1 zone.SouthWest Philip wrote: ↑Tue Jul 26, 2022 20:55 The A505 is unusual in that it extends out of it's zone both ways whilst the actual but between the (former) A5 and A6 is quite short.
- Chris Bertram
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Re: Roads with the smallest percentage in their home zone?
This is a road that has been back-extended to become out of zone. A66 has also been so extended west of A6.trickstat wrote: ↑Tue Jul 26, 2022 21:44It's only in zone between the Luton and Dunstable town centres. Perhaps 2 miles out of a total length just under 50. About half of its length is in the 1 zone.SouthWest Philip wrote: ↑Tue Jul 26, 2022 20:55 The A505 is unusual in that it extends out of it's zone both ways whilst the actual but between the (former) A5 and A6 is quite short.
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Re: Roads with the smallest percentage in their home zone?
The A3400 is an even stronger contender, being a long way out of zone for its whole length... and it's not like the A434 number wasn't available!
- Chris Bertram
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Re: Roads with the smallest percentage in their home zone?
We're venturing into the subject of wholly and egregiously out-of-zone roads here, and I can cite B384 and B3800 here in Birmingham as further examples. Perhaps slightly more relevant are roads that have been "orphaned" by losing a section. A447 has already been mentioned, but A427 is another example, with the section from Coventry to Market Harborough having been renumbered to leave it stranded in zone 6.
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Re: Roads with the smallest percentage in their home zone?
Gareth Thomas wrote: ↑Tue Jul 26, 2022 14:31 ...
A couple of criteria:
Roads that are wholly out of zone do not count (A42!).
...
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Re: Roads with the smallest percentage in their home zone?
I thought of that one too. A-Z suggests it starts at the northbound sliproads, if that is correct (rather then the OS map or the compromise that it starts under the A1 central reservation), it is the winner with just a few feet in zone. Originally it was correctly numbered and mostly to the west of the A1 through Retford. Rerouting of the A1 to the Doncaster bypass didn't take the A620 entirely out of zone, but the questionable downgrading between the A1 and Worksop did.SouthWest Philip wrote: ↑Tue Jul 26, 2022 20:21I guess it comes down to how you interpret where the zone boundary goes. The A1, of course, originally took the route of the A638 in these parts.
The A620 should, theoretically, extend a little way west of the A1 to meet the northbound slip roads. However the OS maps suggest it actually terminates at the southbound slip roads.
From the SABRE Wiki: A620 :
The A620 is a relatively short A-road in north Nottinghamshire.
The road begins at a GSJ with the A1 (old A614) at Ranby, a village it now bypasses since the A1 was routed through here.
A right-hand bend takes us onto a long straight section past Ranby prison, which is occasionally in the news as it is home to people you wouldn't necessarily want to have as dinner guests - namely some of the country's most infamous serial killers. We enter a wooded area rather
- Gareth Thomas
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Re: Roads with the smallest percentage in their home zone?
Indeed! Play by the rules, kids!JohnnyMo wrote: ↑Wed Jul 27, 2022 11:38 From the initial postGareth Thomas wrote: ↑Tue Jul 26, 2022 14:31 ...
A couple of criteria:
Roads that are wholly out of zone do not count (A42!).
...
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"Roads? Where we're going, we don't need roads..."
-Dr Emmett Brown
Re: Roads with the smallest percentage in their home zone?
Re: Roads with the smallest percentage in their home zone?
I'm not sure what the current thinking on where the 4-5 zone boundary is since the A5 Dunstable northern bypass was completed.trickstat wrote: ↑Tue Jul 26, 2022 21:44It's only in zone between the Luton and Dunstable town centres. Perhaps 2 miles out of a total length just under 50. About half of its length is in the 1 zone.SouthWest Philip wrote: ↑Tue Jul 26, 2022 20:55 The A505 is unusual in that it extends out of it's zone both ways whilst the actual but between the (former) A5 and A6 is quite short.
If the boundary is now along the bypass, multiplexing with the M1 as far as the vicinity of J4, then the A505 is only in zone from M1 J10 to somewhere on the Luton inner ring road, depending on exactly where in Luton the 5-6 zone boundary is deemed to be. In this case the A505 is in zone for 2.3-3.3 miles.
If the 4-5 zone boundary still follows the old A5 through Dunstable (ie. the A505 and A5183) then the A505 is in zone for 6.6-7.6 miles starting from the A505 roundabout at the east end of the Leighton Buzzard southern bypass, again depending on exactly where the 5-6 zone boundary is in Luton.
Mileages from Google maps.