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Future expansion of the UK Motorway Network

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Liverbird 1

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This might prove to be a controversial post as a lot of people are against any form of expansion of the UK motorway network; however, below is an interactive 'Future UK 2050 Motorway Network Map' I created a few years back; which is basically a comprehensive map showing what the UK motorway network could look like with the right investment, similar to that of our European counterparts.

UK MOTORWAY NETWORK MAP 2050

Simply zoom in and click on the motorways on the interactive map in the link below to reveal the motorway number and where it would go. Turn the 'Junction' and 'Service Station' layers on and off to suit what you want to see (It may be easier viewing this on your PC or laptop).

I am a big supporter of the primary focus being massive investment in railway infrastructure, both intercity & regional with new tube lines for the big cities; but if we want to boost our national economy to the level of Germany or Japan's we need to build new motorways as well to massively improve connectivity; and the M67 extension from Manchester to Sheffield would be at the very top of any new motorway priority list for the UK.

The vast majority of the current UK motorway network was built during a 20 year period, between 1958 and 1978; and although the priority should be shifting long distance HGV's off the roads and over to rail freight (in order to reduce our carbon footprint and achieve net zero), there will always be the need to build new motorways, due to an ever increasing population and more cars on the road. Even Denmark just announced last week they are building nine new motorways to cater for demand and as much as we would like to get everyone off the roads and onto trains, that's not going to happen unless the rail system is good enough to tempt people to do so and even then, you're not going to tempt everyone. So we can't escape the fact that we do have to build new roads as well to address capacity issues / current problems.

There are so many bottlenecks and missing links on the UK motorway network that need to be addressed in order for our national economy to continue to grow. Doing nothing or putting plasters over the problems with half-baked solutions like the A57 Mottram by-pass do not address the problems we face. A lot of these token upgrades, roundabouts and by-passes are actually counterproductive and stunt our country's economic growth because decisionmakers lack the vision to do what needs to be done. In some cases, major intervention is the only option; like extending the M67 from Manchester to Sheffield, which will actually solve the problem and add a much needed new Trans-Pennine route to the Strategic Road Network. The current proposed A57 Mottram Link upgrades announced by the Chancellor today is a prime example of putting a plaster over a situation and not looking at the big picture and addressing the wider issues head on.

The need for massive government investment in our national infrastructure has never been more apparent than it is today. Although it is absolutely vital that HS2 reaches Crewe and Northern Powerhouse Rail is built in full across the North from Liverpool – Manchester – Leeds – Hull & Newcastle; the time has also come for once in a generation expansion of the UK motorway network, in order to make it fit for the needs of the 21st century.

There hasn't been any motorway expansion on a large scale for 45 years; however, expansion of the current Strategic Road Network IS necessary. The expansion should take the form of both new motorways on new alignment and upgrades of existing trunk routes to create a comprehensive network that connects people, businesses and ports from A to B quickly and efficiently; creating faster journey times, removing bottlenecks & congestion while supporting high levels of growth.

This comprehensive plan for the UK's motorway network in the 21st century should run in tandem with a massive upgrade in capacity of the UK's rail freight network, starting with upgrading the railway node at Ely; allowing containers from UK ports to reach intermodal freight terminals around the country, closer to their final destinations, predominantly by rail; reducing the amount of long distance HGV journeys and massively cutting carbon emissions.

Transport infrastructure should be at the forefront of the government’s plan to rebuild Britain and the current allocation in the budget is nowhere near what is required. Funding for big infrastructure projects should be prioritised; through borrowing if necessary, so we can catapult our way forward into economic prosperity. Obviously, at the same time, we should also be expanding the wider passenger rail network into a more efficient system, not just HS2; and while we do appear to be taking steps to do this with the formation of Great British Railways, we should be going much further; like building new underground tube lines in our big cities, such as Liverpool, Manchester, Birmingham, Leeds, Glasgow & Newcastle, like I have proposed with Liverpool Underground, to allow people to move around locally quickly and efficiently too. Germany has extensive U-Bahn networks in Berlin, Hamburg, Munich, Frankfurt & Nuremburg so why can’t we in the UK?

You only have to look at a map of Germany to see why they are the world's 3rd largest economy with the infrastructure they have and why we in the UK are the world's 6th largest. Some people might look at this motorway map and scoff saying it is completely overkill and unnecessary; but have a look at Germany's Ruhr industrial heartland on a map (Cologne, Dusseldorf, Duisburg, Essen & Dortmund), which is the equivalent to our North England belt of Liverpool, Manchester, Leeds & Sheffield; the contrast in infrastructure between the two is there to see. We are massively behind our European counterparts in terms of connectivity in almost every way, not just Germany, but France, Belgium and the Netherlands too.

Not all the blue lines on this interactive map are new motorways, quite a few are; a lot of it is the existing network and many are upgrades to existing trunk routes that should be proper motorways, like the A14 to Felixstowe, which is a core route on the Strategic Road Network and should upgraded as an extension of the M6.

While I concede, not all of these proposals would come to fruition, a great many of these merit serious consideration by the Department for Transport, as many of these proposals would solve a lot of problems and bottlenecks on the network, increase capacity, reduce congestion and massively boost our national economy.

Some of these new road projects are of course higher priority to others and should be built first, so when reading the map try and visualise the ones in order of priority. Some sections would be built in stages, like the M57 & M64, with their Phase 2 coming later. Some of the lower priority ones might never even see the light of day; however I've added them as food for thought.

It might be overwhelming to look at this map when you first open it and very difficult to navigate on your phone so I would definitely suggest looking qt this on your PC or laptop; but if you turn off some of the layers and read it in conjunction with the priority list below, putting the low and very low priority ones to one side, it should start to make sense.


I’ve listed below the priorities on the UK network I believe should be addressed first:



TOP PRIORITIES:

  • Scrap the proposed A57 Mottram Moor link road and extend the M67 east over the Pennines to meet the M1 north of Sheffield instead (new dual 3-lane motorway) (Strategic Road Network).
  • New M531 motorway from M53 Junction 5 (Eastham) (unfinished junction) to A494 Shotwick Junction (new dual 2-lane motorway parallel to A550) merging with the existing dual 3-lane motorway standard A494 at Deeside.
  • Extend the M56 west of its present terminus to merge with the existing dual 3-lane motorway standard A494 at Shotwick Junction and upgrade the existing dual 2-lane section of A494 south of the River Dee to dual 3-lane motorway through Queensferry to Northop (A55) (M56 West – Phase 1) (Strategic Road Network).
  • Extend the M58 east of the M6 Orrell interchange to meet the M61 at Bolton (new dual 3-lane motorway, filling in a vital missing link on the network, relieving congestion in and around Wigan and also creating a new Trans-Pennine route from the Port of Liverpool). Continue the M58 east past the M61 into Bolton (dual 2-lane motorway).
  • Extend the M27 east along the South Coast to the M20 and on to Ramsgate (new dual 3-lane motorway from Portsmouth to the M20, with A27 upgrades & new alignment) (dual 2-lane motorway from M20 to Ramsgate) (Strategic Road Network).
  • Extend the M27 west of its existing terminus to Bournemouth (new dual 3-lane motorway with partial A31 upgrade).
  • New M64 motorway connecting the M6 (south of Stoke-on-Trent) and the A1(M) (South Witham) (new dual 3-lane motorway) (A50 upgrades & new alignments) (M64 Phase 1) (Strategic Road Network).
  • Extend the M57 north past Switch Island to a new roundabout at Ince Blundell (new dual 3-lane motorway) to meet the start of the A565 dual carriageway to Southport (M57 North – Phase 1).
  • New M123 motorway (Lower Thames Crossing) to relieve the Dartford Crossing (new dual 3-lane motorway) (Strategic Road Network).
  • Extend the M58 west past Switch Island through Rimrose Valley Country Park to The Port of Liverpool at Seaforth (new dual 3-lane motorway reducing to dual 2-lane to merge on to the A5036 Princess Way). The current single lane DfT proposals through Rimrose Valley to Brooms Cross Road are inadequate.
  • New rail freight terminal & container port at Switch Island, Liverpool, between the M57 & M58 west of Melling; which would be an extension of the Port of Liverpool itself; more than doubling current proposed container capacity at the Port. Introduce new M57 & M58 motorway spurs to serve.
  • Extend the M57 south from the M62 Tarbock Island interchange to the A562 (A5300 upgrade to dual 3-lane motorway & A562 junction upgrade; plus a new junction at B5178 to support future development zone). Continue the M57 south past the A562 to Liverpool John Lennon Airport (new dual 2-lane motorway); then continue past JLA to meet the A561 at Garston Freight Terminal (M561), (M57 South – Phase 1).
  • New M51 motorway from M6 Junction 16 (Stoke-on-Trent) past the north side of Crewe to Chester & into North Wales (new dual 3-lane motorway, plus A55 upgrades) (Strategic Road Network).
  • Extend the M6 east of the M1 all the way to Felixstowe (new dual 3/4 lane motorway) (A14 upgrades to motorway standard with some new alignments) (Strategic Road Network).
  • New M12 motorway from M11 Junction 4 (London) to Norwich (new dual 3-lane motorway & partial A12 upgrades) (Strategic Road Network).
  • New M14 motorway from Oxford to Colchester, connecting Luton and Stansted Airports and relieving the M25 north (new dual 3 lane motorway plus A120 upgrades; dual 4-lane between M40 & M11) (Strategic Road Network).
  • New M15 motorway from A1(M) south of Peterborough to the Humber Bridge (new dual 3 lane motorway from A1(M) to M180; dual 2-lane motorway past M180 to Humber Bridge) (Strategic Road Network) (plus additional feeder roads to Lincoln & around the north of Boston to solve chronic congestion).
  • New M59 motorway from the M58 to M6 north of Preston, running west of Preston via a new bridge over the River Ribble (new dual 3-lane motorway). Extend the M65 west to meet the M59 to create a Preston outer ring road. The new M59 would be to Liverpool what the M61 is to Manchester and would now be the primary route from the city heading north (Strategic Road Network).
  • New M46 motorway from Cardiff to the Leicester (avoiding Birmingham, incorporating the existing M50 & M69 plus A46 upgrades) (Dual 2-lane west of M5 & new dual 3-lane motorway between M5 & M1) (Strategic Road Network).
  • New M29 motorway (full A3 upgrade to dual 3-lane motorway standard between Kingston & Portsmouth) (Strategic Road Network).
  • Extend the M42 motorway north to meet the M1 (M42/A42 upgrade to dual 3-lane motorway) (Strategic Road Network).
  • Extend the M65 east of Colne through North Yorkshire past the north side of York all the way to Filey on the North East coast (new dual 2-lane motorway between existing dual 2-lane M65 & A568 (Leeds/Bradford Airport) (new dual 3-lane motorway east of A568 to Filey)


HIGH PRIORITY:


  • Extend the M5 north of Birmingham to Manchester (new dual 4-lane toll motorway; creating a new primary route on the Strategic Road Network, parallel to the M6). If HS2 does not reach Crewe, this will become a top priority.
  • New M68 motorway from M60 Junction 25 (Bredbury) (unfinished junction) to Manchester Airport (new dual 3-lane motorway plus A555 upgrades) (New M5 feeder motorway from M60 East).
  • Extend the M53 motorway south to meet the M5 at Gloucester (new dual 2-lane motorway plus A483 upgrades; providing an essential trans-Wales route connecting North & South Wales) (dual 3-lane motorway between Hereford & M5).
  • New M62 express motorway running parallel to the M60 on the north side between the M62 west of Manchester and the M62 east of Simister interchange, relieving the Manchester northwest corridor (new dual 3-lane motorway) (Strategic Road Network).
  • New M30 motorway connecting the M3 to the M5 (new dual 3-lane motorway & A303 upgrades) (Strategic Road Network).
  • New M43 motorway connecting Oxford to Cambridge from new M14 (Aylesbury) to M11/A14 interchange (new dual 3-lane motorway and A421 upgrades) (Strategic Road Network).
  • New M69 motorway from Carlisle to Newcastle (Jarrow Tunnel) (new dual 2-lane motorway & partial A69 upgrades; dual 3-lane around Newcastle) (Strategic Road Network).
  • New M36 motorway from Bristol to Southampton (new dual 3-lane motorway with partial A36 & A326 upgrades) (Strategic Road Network).
  • New M17 motorway from M1/M18 interchange (Sheffield) to Lincoln & Skegness (dual 3-lane motorway)
  • New M34 motorway (full A34 upgrade to dual 3-lane motorway standard) (Strategic Road Network).
  • A1 upgrade to full motorway standard between A1(M) Peterborough and A1(M) Blyth (new dual 3-lane motorway) (Strategic Road Network).
  • New M44 motorway (Wolverhampton & Dudley Western Relief Road to complete West Midlands Ring Road - new dual 3-lane motorway).
  • Extend the M18 from the M62 north, around the east side of York to meet the extended M65 and continue on to the A19 at Thirsk (dual 3-lane motorway).
  • Extend the M5 south to Plymouth (A38 upgrade to dual 3-lane motorway) (Strategic Road Network).

MEDIUM PRIORITY:



  • Extend the M77 south to the south side of Ayr (new dual 2-lane motorway with A77 upgrades).
  • Extend the M23 to Brighton (A23 upgrade to dual 3-lane motorway standard).
  • New M121 motorway from new M12 to Harwich (dual 2-lane motorway)
  • Extend the A1(M) north from Newcastle to Edinburgh (new dual 3-lane M1 motorway).
  • New M19 motorway (A19 upgrade to dual 3-lane motorway standard from A1(M) to Jarrow Tunnel.
  • New M70 Edinburgh Ring Road (A720 upgrade to dual 3-lane motorway standard).
  • Widen the M8 between Junctions 1 – 6 to dual 3-lane motorway.
  • Extend the M90 from Perth to Aberdeen (new dual 2-lane motorway & A90 upgrades),
  • Extend the M8 into Edinburgh City Centre (new dual 2-lane motorway, to merge with upgraded Western Approach Road),
  • Extend the M5 west of Plymouth into Cornwall (new dual 3-lane motorway & A30 upgrades to address chronic holiday traffic).
  • Extend the M64 east from the A1(M) to the East Coast (new dual 3-lane motorway to M12 (Norwich interchange); dual 2-lane motorway to Hopton terminus between Great Yarmouth & Lowestoft) (M64 – Phase 2).
  • Extend the M67 west into Manchester City Centre (new dual 3-lane motorway), with distributor slip roads onto A6010 Intermediate Ring Road & A365 Inner Ring Road.
  • New M35 motorway (Bristol southern ring road) (dual 3-lane) connecting the M5 to new M36 and Bristol Airport.
  • Extend the M62 east from North Cave to Salt End to create a Hull outer ring road (A63 upgrade & new dual 3-lane motorway).
  • New M78 motorway from Paisley (South West Glasgow) to meet A78 at Saltcoats (new dual 2-lane motorway, A737 & A78 upgrades to meet the extended M77 at Glasgow Prestwick Airport).
  • New M96 motorway from Inverness to Aberdeen (new dual 2-lane motorway).
  • New M81 motorway (North Glasgow Ring Road) from M898 to M80 & M73 (dual 2-lane).
  • Extend M62 motorway west into Liverpool City Centre (new dual 3-lane motorway from current Rocket flyover terminus to new Junction 2 (Edge Hill)). South spur west of Edge Hill to be in a dual 2-lane cut & cover underpass to Upper Parliament Street (50mph speed restriction). The main north section west of Edge Hill to be through two new dual 2-lane bored tunnels (1 mile long) under Kensington to A580 Islington (50mph speed restriction).
  • New M601 connecting the M60 north to Manchester City Centre (catering for traffic from Bury & The East ONLY) (new dual 2-lane motorway) (M602 handles traffic from Bolton & The West).
  • Extend M876 from Kincardine to Dunfermline (new M86 motorway).
  • New M92 motorway from M90 (Dunfermline) to the Tay Bridge (dual 2-lane motorway with A92 upgrades).
  • New M7 motorway parallel to A702 linking the M6 to Edinburgh (new motorway).
  • Upgrade A55 to dual 3-lane M56 motorway from Northop to Colwyn Bay (M56 West – Phase 2).
  • Extend the M53 motorway Moreton spur west of its current terminus through Saughall Massie to Heswall and redesignate M52 (dual 2-lane) (M52 – Phase 1).

LOW PRIORITY:



  • Extend the M57 motorway north past the new terminus at Ince Blundell roundabout to Southport and Preston, to meet the western end of the extended M65 (M59/M65 interchange) (new dual 2-lane motorway) (M57 North – Phase 2).
  • Extend the M57 further south over the River Mersey to meet the M56 when the New Mersey Crossing reaches capacity and continue south through Cheshire to meet the new M51 (new dual 3-lane toll motorway) (1 mile dual 3-lane tunnel required under Helsby Hill) (M57 South – Phase 2).
  • Extend new M52 west from Heswall over the River Dee on a causeway bridge to meet the extended M56 at Holywell (North Wales) (new dual 2-lane toll motorway) (M52 – Phase 2) (incorporate new railway crossing (Liverpool – Holyhead/Llandudno) into new motorway bridge).
  • Extend M23 motorway north from current terminus to Banstead Common (A217 roundabout) (new dual 3-lane motorway).
  • Extend the M2 east of present terminus to Margate (new dual 2-lane motorway & A299 upgrade).
  • If the M56 West – Phase 1 intervention proves insufficient, extend M56 west from Shotwick Junction over the Connah’s Quay Bridge to meet the A55 at Northop (new dual 2-lane motorway plus A548 upgrades).
  • Extend the M54 from Telford to meet the extended M53 and continue on to Welshpool (A5 upgrades, new dual 2-lane motorway).
  • Extend the M66 north from its present terminus at Edenfield to meet the M65 (A56 upgrade to motorway standard) (dual 2-lane).


VERY LOW PRIORITY - LIKELY IMPRACTICAL

  • New M16 motorway (Ringway 2 – South London) (new dual 4-lane motorway) (prohibitively expensive – too much opposition)
  • Extension of M23 further north into South London to Tooting Bec Road (A214) & Tooting Bec Common to meet new M16 (new dual 3-lane motorway) (prohibitively expensive – too much opposition).
 
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Nottingham59

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I'd say the highest priority is to widen or duplicate the M6 Thelwall Viaduct over the Manchester Ship Canal
 

HSTEd

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I'm skeptical that you'd ever get permission to put the M67 up the Woodhead pass on the surface.
I think it would have to be a long bored road tunnel, or even an immersed tube tunnel under the various reservoirs (although that would probably be more expensive than a bored tube!).

I definitely think something has to be done about it, that road is ridiculous and it must be utterly miserable for the people living along it.

EDIT:
I guess you might be able to get a Transpennine motorway as a quid pro quo for abandoning the increasingly unworkable central segment of the A57.
 
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JonathanH

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I'd say the highest priority is to widen or duplicate the M6 Thelwall Viaduct over the Manchester Ship Canal
Didn't they already do that once?

The list in the original post is way too long to ever be contemplated, even just looking at the list of schemes marked as having a greater priority. For every improvement of a motorway, it also needs to be considered how the generated traffic is going to be able to access its destination as well.

Transport infrastructure should be at the forefront of the government’s plan to rebuild Britain and the current allocation in the budget is nowhere near what is required. Funding for big infrastructure projects should be prioritised; through borrowing if necessary, so we can catapult our way forward into economic prosperity.
We don't have any way of generating the money to spend more on infrastructure. The government appears to be looking into a last ditch option of trying to divert pension scheme money from investing in foreign companies into investing in UK infrastructure but pension scheme trustees are going to have to be very clear that investing in the UK is going to provide security to their members.
 
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HSTEd

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We don't have any way of generating the money to spend more on infrastructure. The government appears to be looking into a last ditch option of trying to divert pension scheme money from investing in foreign companies into investing in UK infrastructure but pension scheme trustees are going to have to be very clear that investing in the UK is going to provide security to their members.
The money does exist, it is just tied up in the many sacred cows that dominate British politics today.

The triple lock, the mess that is the housing market etc etc.

I agree that Reeves is thrashing around, but that is more a political than an economic choice.
 

Starmill

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Yes, I know. But then so does adding capacity to the rail network.
Isn't that the point? If you enhance the capacity of the railway you can relive the road. Currently our railway network is almost incapable of that sort of thing because it's a) far too London-centric and b) on nearly all non-London routes it delivers laughably little capacity relative to the roads that go the same way.

The Mottram Link scheme might be adequate capacity if the railway could carry around four times as many people per day as it does today, which isn't that difficult to achieve by comparison with the full-spec M67 extension suggested above.
 

signed

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Yes, I know. But then so does adding capacity to the rail network.
I don't think that's really the same thing. The railway is a fixed capacity link, you can't cram more people than a train can support, while a road has theoretically infinite capacity if everyone was driving absolutely perfectly (never hard braking, no accidents...)
 

ABB125

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I'd say the highest priority is to widen or duplicate the M6 Thelwall Viaduct over the Manchester Ship Canal
Yes, that was done in the 90s, the current southbound viaduct is the new one. You could easily fit 5 lanes in each direction over the existing viaducts though (at the expense of the hard shoulder on the newer one).


The UK has a terrible strategic road network in comparison to pretty much every other comparable nation (but the same could be said about infrastructure in general...). A lack of investment for decades, political timidness (primarily caused by the M3 cutting at Winchester), and NIMBYism. Then, for the last decade or so, most of the money available to spend on strategic roads has been "wasted" on smart motorway schemes*, when what should have happened is building additional new routes (putting all your eggs in one basket etc). Except that would have cost more money and been politically far more difficult.
We then suffer from the problem of horrendously gold-plated design standards, design manuals which pretty much say "thou shalt build a roundabout, regardless of whether it will work or not", and seeming lack of anyone with a functional brain in charge of roads strategy. Look at the M50 Dublin ring road, at what they did to improve the junctions there. Then look at the M25/A3 "upgrade". Then cry...
Topped off with the lack of any cost control, or any interest in keeping costs down, and the consultancies who take the money and produce terrible designs, which are either built and don't work so more money has to be spent a decade down the line to fix it, or they have to redesign before construction. Either way, the consultancies win and get paid even more money, and have no incentive to be creative or do things properly.
The governmental side of things doesn't help either. The entire planning system is not fit for purpose, requiring so much paperwork to be produced (hundreds of thousands of pages for the Lower Thames Crossing, for example) and so many expensive legal hurdles to jump through. NIMBYs/environmental campaigners etc can cause huge delays, repeatedly, for spurious reasons which are rejected (but only after a year or so, in which time prices have gone up and the project has got nowhere).
The entire country is a mess when it comes to infrastructure. Costs are unaffordable, doing anything is too politically challenging, there are too many vested interests in the status quo and keeping the gravy train running.

As an example, there is a proposal to upgrade M5 J9 and bypass Ashchurch. In any sane country, this would be being planned as a strategic addition to the road network, with grade separation, dual carriageway etc. But here, it's being developed by the local council to "unlock" housing development (so strategic traffic immediately goes down the priority list, replaced by car-dependent housing needs). Scheme development started in late 2019, with an anticipated £180 million price tag. Public consultation expected late 2020, construction start 2023/24. 4 years later, public consultation is currently happening, construction anticipated to start (subject to funding) in the early 2030s, estimated cost of nearly £1 billion. And very little actual work to show for the 5 years of work (and £14 million spent) to date (I was very disappointed by how little detail there was).
This is just one example, but sums up some of the problems in delivering a 5 mile new road link. Now multiply this up to the scale of an M67 extension. Or even HS2...

*I have no objection to smart motorways as a thing. But they were not the right thing to spend a decade of funding on. In some cases they were the correct answer, but in many a new road running roughly parallel was (and still is) the solution
 

Dr_Paul

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A motorway to Skegness -- and to some obscure point between Lowestoft and Yarmouth? Someone's having a laugh, surely? These places were on their way out half a century ago.
 

vikingsmb

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M4 extended (3 lanes) to west wales, also m4 relief road (remove 50mph limit) or better still comp purchase houses above brynglas tunnels and made into 3 lanes
A470 dualled all the way through wales as it will help the economy up there and provide better travel
A38 made into 3 lane motorway all way to plymouth.
A37/A354 Dualled to weymouth (I regularly travel to and from weymouth) and its a nuisance being stuck behind slow motorhomes
 

camflyer

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Upgrade M11 between Cambridge/A14 and Stansted.

Full upgrade of remaining dual carriageway sections of A1 with top priority being a Doncaster bypass.
 

MotCO

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My preference is for the A1 to be 3-lane motorway all the way from Peterborough to Pontefract (because it's the main road I use!), although goodness knows how long that would take top build.

I also wonder whether widening / extending existing motorways is the right answer. Would it be be better to create new alignments to alleviate existing corridors - a bit like the M40 relieving the M1. This would give more resilience (if motorway was closed for roadworks / accidents) and give greater capacity. Maybe the new alignments could feed into new towns which would help the target of 1.5m new homes over the next five years. And the roads could be built before the houses, (or route preserved) so that compulsory purchases etc could be minimised.
 

ABB125

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I also wonder whether widening / extending existing motorways is the right answer. Would it be be better to create new alignments to alleviate existing corridors - a bit like the M40 relieving the M1. This would give more resilience (if motorway was closed for roadworks / accidents) and give greater capacity. Maybe the new alignments could feed into new towns which would help the target of 1.5m new homes over the next five years. And the roads could be built before the houses, (or route preserved) so that compulsory purchases etc could be minimised
This is the correct answer. Arguably this is what should have happened instead of the smart motorways programme. However, it's virtually impossible to build anything in this country any more, so it won't happen.
 

Alfonso

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There is an argument that a great deal of travel demand is a product of a lack of appropriate housing near employment...if we had more housing near employment sites then there would be far less demand for commuting and hence less demand for these sorts of projects
 

MotCO

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There is an argument that a great deal of travel demand is a product of a lack of appropriate housing near employment...if we had more housing near employment sites then there would be far less demand for commuting and hence less demand for these sorts of projects
And ditto for local schools and other facilities.
 

edwin_m

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Widening a road has been shown to likely to bring more traffic after a point

Yes, I know. But then so does adding capacity to the rail network.
There's a critical difference here. Capacity on the rail network is controlled, or at least it should be. The number of trains is limited to what a route can take without causing excessive delays. This isn't true of a road - if it makes people's journeys quicker/easier then they will keep piling onto it until congestion (on the road or more likely on unenhanced connecting roads) destroys the benefit. The result is that people's journeys aren't much better and a bi-product is extra journeys on the road and fewer on the rail alternative, with safety and environmental disbenefit and worsening the economics of the train possibly enough that the service is cut to start a spiral of decline.
 

Harpo

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The long discussed western Birmingham avoider, extending the M42 west & north from the M5 to the M54 and M6/M6 Toll continues to get discussed in full or in part.

However, with the M6T full journey toll for a car creeping towards a tenner, best to beware what’s being wished for.
 

Ken H

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How about harrogate bypasses? The A61 goes right through the centre and is often queuing down the Ripon Rd. Crossing it at a nasty roundabout is the A59 which ploughs through High Harrogate, over a level crossing at Starbeck before ending up going down the High St in Knaresborough.

Ilkley needs a bypass too.
 

Egg Centric

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Land of the Prince Bishops
There's a critical difference here. Capacity on the rail network is controlled, or at least it should be. The number of trains is limited to what a route can take without causing excessive delays. This isn't true of a road - if it makes people's journeys quicker/easier then they will keep piling onto it until congestion (on the road or more likely on unenhanced connecting roads) destroys the benefit. The result is that people's journeys aren't much better and a bi-product is extra journeys on the road and fewer on the rail alternative, with safety and environmental disbenefit and worsening the economics of the train possibly enough that the service is cut to start a spiral of decline.

Those extra journies are making people either richer or happier. They are not a bad thing.

At some point you stop encouraging them anyway. To take an extreme if they opened the world's best road next to you would you spend all day every day driving on it? Of course not. The only reason induced demand is even a thing is our roads being grossly inadequate.
 

telstarbox

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Wennington Crossovers
There is an argument that a great deal of travel demand is a product of a lack of appropriate housing near employment...if we had more housing near employment sites then there would be far less demand for commuting and hence less demand for these sorts of projects
Housing near employment was realistic when everyone worked in their local farm or factory. In a skilled service economy jobs are more specialist and necessarily some people will need to travel beyond their own town - hence the huge numbers who commute into Zone 1 London and Canary Wharf. The best way to mitigate road congestion is a mix of alternatives such as public transport and flexible working to dampen down trip demand.
 

edwin_m

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Nottingham
Those extra journies are making people either richer or happier. They are not a bad thing.

At some point you stop encouraging them anyway. To take an extreme if they opened the world's best road next to you would you spend all day every day driving on it? Of course not. The only reason induced demand is even a thing is our roads being grossly inadequate.
Possibly, but possibly not if they are people who have to drive because the public transport alternative has been cut. Or if they are making journeys or life in general worse for people on nearby existing roads that now suffer congestion.

My point was that there was no real encouragement to using a new road - anyone can drive along it, and the only real deterrent is the congestion that builds up if too many people do so. Agree it only applies in conditions of suppressed demand, that being where there are people that would like to drive if the roads were better. But in a place with no suppressed demand then there's probably not going to be any consideration of building a new road.
Housing near employment was realistic when everyone worked in their local farm or factory. In a skilled service economy jobs are more specialist and necessarily some people will need to travel beyond their own town - hence the huge numbers who commute into Zone 1 London and Canary Wharf. The best way to mitigate road congestion is a mix of alternatives such as public transport and flexible working to dampen down trip demand.
Another factor is households where two or more people work, many of whom will be working in different places.
 

SynthD

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4 Apr 2020
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UK
One reason there haven’t been many new motorways recently is the government’s preference for grade separated A roads, such as the Devon Expressway. It fills the purpose of a motorway, but is two lane. If you included current dual carriageways, some of the proposals wouldn’t be needed. If you considered building new dual carriageways, other proposals could be more likely. I once read that new motorways must have three lanes, but that could have been someone’s guess.
 

Tester

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Watford
Image shows a congested multi-lane highway in Los Angeles, with a caption repeatedly saying, 'One more lane will fix it', culminating in, 'This might be the wrong approach '.
 

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D365

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29 Jun 2012
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13,155
That's not true, any road can be a motorway (including a single carriageway!). It just needs certain legislation to be approved in Parliament
Or said legislation can be bypassed with the ‘expressway’ moniker as per A14.
 

typefish

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12 Sep 2019
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Heaton
We need more motorways, but naturally that's coming from someone who is a great admirer of the Autobahn (and how it's ran!)

Widening motorways is something we shouldn't do, as it's very clear that the UK has little resilience when it comes to critical road infrastructure.

UK rail and road networks are both scarily similar when it comes to being London centric and uhm... fragile.
 

Topological

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Swansea
If a motorway needs to have a 50mph speed limit and has junctions snarling it up less than a mile apart it should not be a motorway.

The resulting gaps in the motorway network then need replacing with a motorway.

Examples I drive regularly are Port Talbot and Newport on the M4. The latter having been mentioned many times.

2-lane sections are not a disaster, but they need to be free to flow without too many joiners/leavers.
 

ABB125

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23 Jul 2016
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University of Birmingham
The biggest problem with British motorways (and most roads in general) is junctions. Almost uniquely amongst developed nations, we insist on using terrible junction designs which simply don't work. Often, they are incredibly complicated and convoluted, and very obviously a case of the existing junction being distorted out of all proportion over time as development has occurred nearby. This one near Reading, or this one near Sheffield, are examples. Or, a concept which works well in certain places is butchered into place where it is completely unsuitable, such as here. Or, the classic British "must build a roundabout at any cost"/"that roundabout isn't working, let's build a bigger one" mindset - like this, or this, or this (there are so many other examples of this. Note the similarity with the "one more lane will fix it" image in post 25...).
Even worse is that the British approach to "fixing" this problem is to spend vast sums of money tinkering/making the roundabout bigger etc, which doesn't solve the problem at all, just wastes money and causes economic issues during the roadworks. Then do the same a few years later. Ad infinitum. Rather than do the job properly. Yet on the occasions where a genuine low-cost improvement could be made (such as changing the road markings and lane merge layout) this cannot be done "because".

If your junctions are flowing freely, you don't have queues. This in turn reduces congestion on the "mainline" (ie: the traffic not joining/leaving at the junction). Which in turn reduces the need to increase capacity.

There is so much evidence from abroad of how to do things better. But Britain is seemingly forever stuck in its "we know best" attitude.
 
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