Trivia: Consecutive Road Numbers Meeting Same Road

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Rob590
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Trivia: Consecutive Road Numbers Meeting Same Road

Post by Rob590 »

OK, here's one that occurred to me while driving the other day:

The A57, A58, A59 and A60 all have junctions with the A6 (I don't know if the A56 does, both it and the A6 are sort of swallowed up by central Manchester). That's 4, maybe 5, consecutive road numbers joining another road. The A92, A93 and A94 all have junctions with the A90 a sequence of 3.

What's the longest sequence of numbers for which this is true?

You can move between classifications if it helps (eg the imaginary sequence M97, B998, A999 would be allowed), but the road which is met itself can't form part of the sequence (eg the A595 meeting the A593, A594, A596 and A597 would not be a sequence of 5 numbers). The junctions themselves as my examples show do not have to be sequential, or even followed in the 'right' order.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by B1040 »

Before 1960, the A1 met the A14, A15, A16, A17, A18 and A19, in sequence.
After the Stamford bypass opened, it lost the A16, now the A17 doesn't quite make it, the M18 has replaced the A18 and it meets the other end of an extended A18.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by B1040 »

The A1 also met A602-A607 in sequence until the A14 stole the A 604 (and even A600 and A601 before they were renumbered).
It also meets the A598, but the A599 seems never to have gone anywhere near the A1 spoiling an otherwise magnificent sequence.
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Chris Bertram
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by Chris Bertram »

M1 meets A41, A42, A43, A45 and A46 but A44 is some distance away, breaking the sequence, and A47 crosses it without a junction.
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Chris Bertram
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by Chris Bertram »

M6 meets M54, A54 (for a duplicate), M55, M56, A57, A58 , M58 (for a bonus duplicate) and A59.

It also meets A5, A6 and A7.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by Chris Bertram »

A1(M) meets A688, A689 and A690, the first of these being a relatively new arrival following some renumbering and new build.

M1 meets A507, A508 and A509. It used to meet A506 before that was incorporated into A50, but A509 has now partly replaced that.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by wrinkly »

The A34 has junctions with the A4 and A5 and used to end on the A6.

It also has junctions with two different arms of the A50, a multiplex with the A51, a junction with the A52 (I think; the A52 formerly crossed it) and junctions with the A53 and A54.

The M6 crosses the A51, the former A52 and the A53 without connection, but has junctions with the A57, A58 and A59.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by owen b »

A19 meets A181, A182, A183, A184, A185, A186, A187.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by trickstat »

Low-hanging fruit time, the M25 meets the A1, A2 and A3 in various ways.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by Beardy5632 »

The A193 meets A186-A192
British & Irish cities driven in - 48/75
England - 36/52, Scotland - 7/7, Wales - 5/6, NI - 0/5, RoI - 0/5
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by crowntown100 »

The A361 meets A36, A37, A38, A39 and A40, and at classification in 1923 also met A41 and A42. It wasn't far from A43 either, met A44 and now meets A45, but obviously they don't count.
trickstat wrote: Fri Jul 29, 2022 18:42 Low-hanging fruit time, the M25 meets the A1, A2 and A3 in various ways.
Also , if it's just consecutive numbers we're after:
- A10, M11, A12 and A13,
- M1, A2, M3, M4
- M20, A21, A22, M23. If the A24 met J9 instead of the A243 it would also meet A25 (Sevenoaks spur) and M26.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by TS »

If we're allowed B roads, the A3055 on the Isle of Wight meets the B3327, B3328, B3329 and B3330.

The A354 around Weymouth meets, or met, the B3153, B3154, B3155, B3156 and B3157 - although the B3153 has apparently been de-classified recently.

If we can combine A and B, then the A35 meets
...the B3055 at Hinton
...the B3056 at Lyndhurst
...the A3057 at Shirley
...the B3058 at Holmsley
...the B3059 at Somerford and Stony Lane and Barrack Road and Pokesdown
...the A3060 at Iford
- and very nearly meets the B3061 at Pottery Junction as well
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by A320Driver »

A243, A244 and A245 meet A3 at consecutive junctions. A238 and A240 are just prior, and A247 is next. A246 would have met A3 at top of Guildford High Street until the 1930s bypass was built.

I'm surprised no-one has mentioned the A2 - at some point of time all of A225 to A229 met it.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by orudge »

Rob590 wrote: Fri Jul 29, 2022 09:06 The A57, A58, A59 and A60 all have junctions with the A6 (I don't know if the A56 does, both it and the A6 are sort of swallowed up by central Manchester). That's 4, maybe 5, consecutive road numbers joining another road. The A92, A93 and A94 all have junctions with the A90 a sequence of 3.
You could say that the A91, A92, A93 and A94 all have junctions with the M/A90. Although these days the A93 junction is somewhat indirect (accessed via a link road, as is the A96 for that matter) so not sure you can really include it now!
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by dereer »

In Ireland, the N2 meets the M50, N51, N52, N53 and N54.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by Keiji »

The A38 in Devon is a top contender!

In sequence, as you drive south/westbound, you'll meet the A379, A380, A382, A383, A384, A385, A386, and then in Cornwall, the A388, A390 and finally A389 at the terminus.

For the purposes of the OP's challenge, it scores five (bold underlined above), but I find it very pleasing that if only the A381 and A387 were to be added, it'd score twelve! with all of them in order apart from the A390.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by DavidBrown »

Keiji wrote: Sun Aug 14, 2022 10:44 The A38 in Devon is a top contender!

In sequence, as you drive south/westbound, you'll meet the A379, A380, A382, A383, A384, A385, A386, and then in Cornwall, the A388, A390 and finally A389 at the terminus.

For the purposes of the OP's challenge, it scores five (bold underlined above), but I find it very pleasing that if only the A381 and A387 were to be added, it'd score twelve! with all of them in order apart from the A390.
Same roads in a similar part of the world, but only this morning was I thinking how strangely satisfying it is to have 4 consecutive numbers on this sign, even if one of them is bracketed.
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Chris Bertram
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by Chris Bertram »

Keiji wrote: Sun Aug 14, 2022 10:44 The A38 in Devon is a top contender!

In sequence, as you drive south/westbound, you'll meet the A379, A380, A382, A383, A384, A385, A386, and then in Cornwall, the A388, A390 and finally A389 at the terminus.

For the purposes of the OP's challenge, it scores five (bold underlined above), but I find it very pleasing that if only the A381 and A387 were to be added, it'd score twelve! with all of them in order apart from the A390.
Neither A381 nor A387 are very far away from A38. It's a group of numbers that makes sense on its own terms.
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by Ben302 »

A320Driver wrote: Mon Aug 08, 2022 20:02
I'm surprised no-one has mentioned the A2 - at some point of time all of A225 to A229 met it.
And the A230 and A231
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Re: Trivia: Consecutive Road Numbers Meeting Same Road

Post by orudge »

The A91 meets the A911, A912, A913, A914, [A919], A915 and A917, in that order (the last two at a mini-roundabout). The A919 gets in the way of it being a straight run of 5, sadly.

And not entirely the same, but the A960 meets the A961 and the A962, the A962 then meets the A963 and the A964, which both meet the A965, which meets the A966 which meets the A967. Transpose a couple of digits and the A967 then meets the A986. :lol:
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