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Old May 5th, 2013, 09:52 AM   #3261
piotr71
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A303 highway to the sun.

Fascinating driving movie.

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Old May 5th, 2013, 06:16 PM   #3262
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Quote:
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Fascinating driving movie.

Great show, again BBC at its best.
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Old May 15th, 2013, 06:29 PM   #3263
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Not motorway related, but here are some questions:

What is the longest continuous dual carriageway primary A road? (A1/A34?)
And secondary A road?
And perhaps someone know the longest dual carriageway B road? (old A74/B7078 in Scotland?)
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Old May 15th, 2013, 06:41 PM   #3264
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A1 is not continues, as it turns into motorway in stages. My money is on the A14.
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Old May 15th, 2013, 06:45 PM   #3265
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I'd say A14 too.
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Old May 18th, 2013, 03:07 PM   #3266
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M1 Northampton Services





Interesting unindetified moving object.






This picture has been taken near Luton.
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Old May 18th, 2013, 03:14 PM   #3267
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A5 & A4146









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Old May 18th, 2013, 04:27 PM   #3268
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M27 ends up here.




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Old May 18th, 2013, 04:30 PM   #3269
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A303 Ilminster by-pass.





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Old May 18th, 2013, 04:41 PM   #3270
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A417 near Cirenster.

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Old May 18th, 2013, 06:03 PM   #3271
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M3 (J4a-J2)



Surface isn't perfect here.






!




Merging taper - worst merging solution.






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Old May 19th, 2013, 04:31 PM   #3272
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M25 (J12 - J16)











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Old May 19th, 2013, 04:41 PM   #3273
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A40 (from M25 towards central London)





Unskilled white van midlle lane hogger.







Polish War Memorial junction.


















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Old May 19th, 2013, 04:52 PM   #3274
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The end.
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Old May 19th, 2013, 09:35 PM   #3275
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Is there a way to distinguish between A-roads that are near-motorway standard (dual carriage, minimal interruptions to travel like roundabouts, etc) from smaller A-roads (single carriage, lots of stops, etc)?
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Old May 19th, 2013, 09:42 PM   #3276
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Well there are two levels of A road, primary A roads (green signs) and secondary A roads (white signs), the former generally being better than the latter, but some secondary A roads are to motorway standard and some primary A roads have only one lane.
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Old May 20th, 2013, 07:58 PM   #3277
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Quote:
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Is there a way to distinguish between A-roads that are near-motorway standard (dual carriage, minimal interruptions to travel like roundabouts, etc) from smaller A-roads (single carriage, lots of stops, etc)?
Unfortunately not, and I think the numbering and classification system is a bit of a mess as there are plenty of motorway-standard roads that are not classified as motorways and a few sub-standard motorways that are of a lower standard than some non-motorway A-roads.
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Old May 21st, 2013, 01:16 PM   #3278
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In the UK, Motorway is a legal descriptor of "a Special Road (ie not a right of way) restricted to Classes I and II", not a standard such as "dual carriageway of at least 2 12' lanes and 10' shoulder each way with a design speed of at least 120km/h, access control (no driveways) and no at-grade junctions".

And there are no non-primary A roads that are 'motorway standard' anyway.

I'm stuggling to think of 'motorway standard' A Roads that don't have motorway status/restrictions. A1 Newry bypass, A1 Blyth bypass, A2 heading into London from the M2, A27 between M275 and A3(M), A55 Chester Western Bypass, the A720 if it wasn't for Sheriffhall Roundabout, and err, err, err.

Hardly 'plenty' is it? about 50 miles. Even if I've forgotten some small chunks, it won't make 100 miles.

OK, you are looking at quite a bit more if you use the Michelin definition, but there's a reason Michelin show those roads specially and the AA or Collins never bothered - there's a lot more non-motorway road that is dualled, access controlled and grade-separated in France than in the UK. We might be on a par with Brittany and Normandy with our length of these roads.

And I'm struggling to think of who actually uses some classification system that deals with standard of road, rather than route importance/who maintains it/funding levels/legal status. South Africa and Australia with their number by route importance, prefix by route standard systems? Any other takers?
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Old May 21st, 2013, 02:13 PM   #3279
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Quote:
Originally Posted by ttownfeen View Post
Is there a way to distinguish between A-roads that are near-motorway standard (dual carriage, minimal interruptions to travel like roundabouts, etc) from smaller A-roads (single carriage, lots of stops, etc)?
I'm looking for a paper map (or rather, a series of those) that'll show me those somewhat reliably.
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Old May 21st, 2013, 02:20 PM   #3280
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The amount of grade-separated dual carriageways is circa 2700 - 2800 kilometers, or circa 1,700 miles. Not all of these will comply to rigid motorway standards though, but it gives an idea.
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