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Old April 20th, 2017, 07:26 PM   #4401
ChrisZwolle
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Catthorpe Junction

The reconstructed Catthorpe Junction (M1/M6) near Rugby. Originally it was an incomplete split, traffic could only turn off from London to Birmingham and vice versa. Now they connected A14 to both M1 and M6.



01_2017_168 by Highways England, on Flickr


01_2017_154 by Highways England, on Flickr


01_2017_144 by Highways England, on Flickr


01_2017_141 by Highways England, on Flickr


01_2017_139 by Highways England, on Flickr
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Old April 20th, 2017, 08:06 PM   #4402
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Quote:
Originally Posted by Ryme Intrinseca View Post
It definitely won't be dual four lane motorway. The current assumption is two lane all purpose, with the tunnel bores wide enough for future upgrade to three lanes per bore, though they will now reconsider whether some or all should be built as dual three lane. This is clearly necessary given projected volumes of 84,000 AADT in opening year (2025) and 96,000 by 2041.
Two lanes for AADT of over 80,000?
And projected increase of traffic by 14% over 16 years?
16 years since opening it is going to be 150,000 AADT or more

This would make sense if at the same time second bridge at Dartford was build plus some other crossing of Lower Thames.

God bless British planing
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Old April 20th, 2017, 08:42 PM   #4403
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Quote:
Originally Posted by ChrisZwolle View Post
Originally it was an incomplete split, traffic could only turn off from London to Birmingham and vice versa. Now they connected A14 to both M1 and M6.
They connected the A14 to both M1 and M6 in the early 90s in a total bodge job of a couple of roundabouts and a couple of slip roads onto local roads.

The recent works removed the local access (and provided a bypass for Catthorpe) and made the A14 have free-flowing access onto and off-of the M6, and the M1 to/from Leicester. It remains an 'incomplete split'.
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Old April 21st, 2017, 04:56 AM   #4404
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Quote:
Originally Posted by bartek76 View Post
Two lanes for AADT of over 80,000?
And projected increase of traffic by 14% over 16 years?
16 years since opening it is going to be 150,000 AADT or more

This would make sense if at the same time second bridge at Dartford was build plus some other crossing of Lower Thames.

God bless British planing
But with Brexit, immigrantow probably go back and AADT will not go up so much
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Old April 21st, 2017, 11:30 AM   #4405
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Quote:
Originally Posted by ChrisZwolle View Post
The reconstructed Catthorpe Junction (M1/M6) near Rugby. Originally it was an incomplete split, traffic could only turn off from London to Birmingham and vice versa. Now they connected A14 to both M1 and M6.


The old one was a complete joke, one of the biggest bottlenecks on the entire A-road and Motorway system. The primary East-West corridor in the Midlands, diverted onto a tiny roundabout and shoved through a narrow tunnel and an unclassified road to reach the M6.
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Old April 21st, 2017, 06:16 PM   #4406
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Quote:
Originally Posted by bartek76 View Post
Two lanes for AADT of over 80,000?
And projected increase of traffic by 14% over 16 years?
16 years since opening it is going to be 150,000 AADT or more

This would make sense if at the same time second bridge at Dartford was build plus some other crossing of Lower Thames.

God bless British planing
Yes, it is very strange that the current proposal is only dual two lane, but at least that's being reviewed.

I agree that they will ultimately have to widen the Dartford crossing as well. The projection is that it will return to current levels of congestion soon after the new crossing opens, due to suppressed demand and general traffic growth.

My main concern with the preferred route (route 3) is actually the A13 junction. It makes traffic between the A13 to the East and the tunnel go through the Orsett **** roundabout. These movements were freeflow for rejected routes 2 and 4:

Route 2:


Route 3 (the preferred route):


Route 4:


Overall routes:



EDIT: It censored Orsett ****, so you have to look at the second image above to see the full name of the roundabout
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Last edited by Ryme Intrinseca; April 21st, 2017 at 08:16 PM.
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Old April 22nd, 2017, 11:54 AM   #4407
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Quote:
Originally Posted by bartek76 View Post
Two lanes for AADT of over 80,000?
And projected increase of traffic by 14% over 16 years?
16 years since opening it is going to be 150,000 AADT or more

This would make sense if at the same time second bridge at Dartford was build plus some other crossing of Lower Thames.

God bless British planing

Quote:
Originally Posted by Ryme Intrinseca View Post
Yes, it is very strange that the current proposal is only dual two lane, but at least that's being reviewed.

I agree that they will ultimately have to widen the Dartford crossing as well. The projection is that it will return to current levels of congestion soon after the new crossing opens, due to suppressed demand and general traffic growth.
They should probably build the Lower Thames Crossing as 2x3 from the beginning. Hopefully they might do it as the profile is not yet decided, as far as I understand.

The problem is that if you build 2x3 Thames Gateway and then also expand the Dartford Crossing what will happen to all this extra traffic? On the Kent side the M20 doesn't have much spare capacity. M2-A2 could be possibly upgraded all the way to Dover but then Dover will be a choke point anyway.

The idea of the crossing is to deal with the long distance traffic, not to add capacity for commuters. For that we could build five bridges and they would fill up. Eventually there should be look into some rail crossing of the lower Thames. At the moment if you want to cross the river by train you have to go all the way to central London

What's also needed is some extra Thames crossing somewhere in east London, below the Blackwall Tunnel.
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Old April 22nd, 2017, 10:15 PM   #4408
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Quote:
Originally Posted by geogregor View Post
What's also needed is some extra Thames crossing somewhere in east London, below the Blackwall Tunnel.
Well there's the Silvertown tunnel, which should start construction next year:

https://tfl.gov.uk/travel-information/improvements-and-projects/silvertown-tunnel
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Old April 23rd, 2017, 11:56 AM   #4409
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The westbound M8 between Newhouse and Baillieston opened today...

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Old April 25th, 2017, 12:05 AM   #4410
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Quote:
Originally Posted by geogregor View Post

What's also needed is some extra Thames crossing somewhere in east London, below the Blackwall Tunnel.
Which opens next year. It is called Crossrail and is in Woolwich.
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Old May 25th, 2017, 07:38 PM   #4411
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M90: Queensferry Crossing 4km (September 2011 to May 2017) – projectmap
The new Queensferry Crossing will not open until between mid-July and the end of August, it has been revealed. The opening has been delayed further due to "adverse weather conditions". (29th March 2017)

Quote:
Originally Posted by MichiH View Post
A1(M): Barton – Leeming 19.3km (March 2014 to Late June 2017) – projectmap
Motoring misery as A1 Leeming to Barton roadworks project delayed by up to 6 months (10th April 2017)

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Originally Posted by MichiH View Post
A30: Millpool – Temple 4km (March 2015 to July 2017) – projectmap
The project page reports: "The constructors Kier and Cornwall Council have announced construction will be complete on 13 July but all four lanes will open before this date." (25th March 2017)

Quote:
Originally Posted by MichiH View Post
A21: Tonbridge – Pembury 2.7km (April 2015 to Summer 2017) – projectmap
On time according to the project page.

Quote:
Originally Posted by MichiH View Post
A533: Widnes (A562) – Astmoor (A558) 4.8km (May 2014 to Fall 2017) – projectmap
On time according to the project page.
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Which new motorways are currently under construction?
Which new motorways will be opened next?

See 'New motorway projects' thread

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Old May 26th, 2017, 08:19 PM   #4412
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Views towards London:

DSC02879
by Geogregor*, on Flickr


DSC02880
by Geogregor*, on Flickr


DSC02884
by Geogregor*, on Flickr


DSC02885
by Geogregor*, on Flickr

Towards Dover, here M20 changes into A20:

DSC02882
by Geogregor*, on Flickr
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Old May 26th, 2017, 08:22 PM   #4413
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A20 entering tunnel under North Downs, looking towards Dover:
DSC03017 by Geogregor*, on Flickr


DSC03019
by Geogregor*, on Flickr


DSC03021
by Geogregor*, on Flickr


DSC03031
by Geogregor*, on Flickr


DSC03034
by Geogregor*, on Flickr

Last exit before the beginning of the M20:

DSC03035
by Geogregor*, on Flickr


DSC03038
by Geogregor*, on Flickr

In the distance A20 on the other side of the tunnel, towards Dover:

DSC03043
by Geogregor*, on Flickr

Last view towards A20, below A260

DSC03047
by Geogregor*, on Flickr
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Old May 27th, 2017, 11:09 PM   #4414
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A456 (near Kidderminster) - M5 Juction 3 (x3.2) (26/05/2017)



M5 (J3) - West Bromwich

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Old June 7th, 2017, 11:49 AM   #4415
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Some "documentaries" about British roads:

First about the M25:



And second about the A1:



There are more episodes available on YT. Might be fun watch for those not too familiar with the GB roads.
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Old July 2nd, 2017, 09:11 PM   #4416
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M3 smart motorway

M3 'smart' motorway opens in Hampshire and Surrey

A Ł174m upgrade to turn the M3 into a "smart" motorway in Hampshire and Surrey has been opened.

The 13.4-mile stretch between Farnborough and the M25 is now a four-lane carriageway, after a project that cost Ł50m more than first expected.
Full report: http://www.bbc.com/news/uk-england-surrey-40473727



What makes these schemes so expensive? The cost per mile is pretty high for a project that converts the shoulders into driving lanes. As I understand it, these 'smart motorway' schemes don't require extensive bridge replacement. Satellite imagery shows that only one overpass has been replaced.
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Old July 3rd, 2017, 12:26 AM   #4417
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traffic management is very expensive. To keep the number of lanes on the existing road the same as before while also safely doing the works is very expensive. They can close lanes at night, so most of the work happens then, and the workers compensated accordingly for that.

Add in the absurdly high inflation in the construction industry in the UK for the last 5 years, and the IMF-recommended (in 2015) devaluation of the pound over the last 18 months, and that explains some of the cost overruns.

Also Smart Motorways include massive technology upgrades of the road (tons of cameras, sensors, computers and signs), and new road-spanning gantries every 400m or so - it's not just repainting the line for the hard-shoulder as a dashed one, and building an emergency refuge area every kilometre.
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Old July 3rd, 2017, 01:50 AM   #4418
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Yeah but the same thing happens in the Netherlands all the time and that wont cost that much.
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Old July 3rd, 2017, 01:30 PM   #4419
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Quote:
Originally Posted by ChrisZwolle View Post
M3 'smart' motorway opens in Hampshire and Surrey

A Ł174m upgrade to turn the M3 into a "smart" motorway in Hampshire and Surrey has been opened.

The 13.4-mile stretch between Farnborough and the M25 is now a four-lane carriageway, after a project that cost Ł50m more than first expected.
Full report: http://www.bbc.com/news/uk-england-surrey-40473727
Last time when I drove there it was night and was closed due to works. I'll drive on it this evening, so let's see how it goes.
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Old July 4th, 2017, 03:00 AM   #4420
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It didn't go well. On entire M25 there were electronic signs saying that M3 is closed from M25 junction to south. I had to drive on M4-A33-M3-A303 instead. There were a lot of lane and total closures this evening also on M4 and A303.
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