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Old April 3rd, 2016, 12:22 AM   #4201
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Quote:
Originally Posted by verreme View Post
British gantry signage looks very awkward overall.
All that dead gray space....
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Old April 3rd, 2016, 11:45 AM   #4202
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Quote:
Originally Posted by verreme View Post
British gantry signage looks very awkward overall.
True, a bit awkward but it does the job. I find it quite clear, but maybe I got used to it

BTW, great shot by bogdymol.
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Old April 3rd, 2016, 12:54 PM   #4203
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A2 westbound in summer.
Anyone fancy some BBQ? I wanted to drive past it on the inside lane to have a closer look, but I wasn't brave enough.

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Old April 3rd, 2016, 02:08 PM   #4204
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Quote:
Originally Posted by sirfreelancealot View Post
It just means that lane two can be used for both destinations, whilst lane one filters off.
Here's a sign that conveys the same type of information in a more compact and less awkward manner. Although I would argue that it's difficult to see the fine lane marking detail at speed. The Continental solution does seem to be generally optimal, and with all. of. that. blank space on the British sign there shouldn't be a problem fitting on all of the information you want to convey.
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Originally Posted by Suburbanist View Post
I can't being to imagine how much polluted that mud must be.

If not for the port activities, they could dredge it and build a big tidal power plant.

They could also have built part of the link as an expressway over an embankment.
Mudflats are considered a protected ecological environment in Britain. For a river like the Mersey, I'd guess that dredging that stretch is a non-starter: (1) I'm pretty sure there's a bypass canal in the bridge's vicinity, and (2) there are enormous ecological benefits embodied in tidal wetlands. Some of these are even monetizable, as Louisiana relatively recently discovered to the state's horror.
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Old April 3rd, 2016, 05:08 PM   #4205
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Quote:
Originally Posted by hammersklavier View Post
Mudflats are considered a protected ecological environment in Britain. For a river like the Mersey, I'd guess that dredging that stretch is a non-starter: (1) I'm pretty sure there's a bypass canal in the bridge's vicinity, and (2) there are enormous ecological benefits embodied in tidal wetlands. Some of these are even monetizable, as Louisiana relatively recently discovered to the state's horror.
They're considered a protected environment in many other countries too. Intertidal mudflats, saltmarsh and mangroves are not just important for wildlife they're also very important in protecting against coastal erosion and flooding. You effect the whole hydrology of a river when you dredge. Of course if you want to keep a river navigable then you need to dredge but it isn't necessary in many cases to destroy an entire habitat to do it. It's a good example of how a natural habitat isn't necessarily beautiful to look at, but is very necessary for the healthy functioning of a river.
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Old April 3rd, 2016, 11:39 PM   #4206
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Quote:
Originally Posted by CairnsTony View Post
They're considered a protected environment in many other countries too. Intertidal mudflats, saltmarsh and mangroves are not just important for wildlife they're also very important in protecting against coastal erosion and flooding. You effect the whole hydrology of a river when you dredge. Of course if you want to keep a river navigable then you need to dredge but it isn't necessary in many cases to destroy an entire habitat to do it. It's a good example of how a natural habitat isn't necessarily beautiful to look at, but is very necessary for the healthy functioning of a river.
This actually what I was getting at! Because we keep the Mississippi dredged and navigable (vital for New Orleans' economic health), we've changed the hydrology such that the sediment load gets deposited further and further out into the Gulf of Mexico instead of throughout the vast delta region. This in turn has led to a steady erosion of the bayous, which makes New Orleans much more exposed to major storms. Hurricane Katrina would not have been as bad as if the bayou barrier between the city and the Gulf had been as extensive as it was in, say, 1800.

Everything's a tradeoff, and we must think carefully about consequences.
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Old April 6th, 2016, 03:08 PM   #4207
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Smarter motorway opens for drivers on the M1

£205 million upgrade on section of the M1 went live today.

The final phase of a £205 million upgrade to improve journey times and reduce congestion on a 20 mile section of the M1 spanning the East Midlands and South Yorkshire went live today.

The Highways England scheme between junction 28 (Mansfield) and junction 31 (Worksop) is the first smart motorway in the East Midlands and South Yorkshire, where the hard shoulder has been permanently converted to an extra lane.

Variable speed limits will also be used to keep vehicles moving, tackling the stop-start conditions many drivers have experienced in the past.
Full press release: https://www.gov.uk/government/news/s...vers-on-the-m1

There's quite a bit of smart motorways now.
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Old April 7th, 2016, 08:31 PM   #4208
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Nothing smart about them unfortunately.
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Old May 2nd, 2016, 11:41 PM   #4209
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Quote:
Britain's motorways saw 662 suicide attempts in 2014 as campaigners demand prevention measures


Samaritans chief Ruth Sutherland told MPs the figures could not be ignored, while ministers said they were investigating hotspots to improve safety measures

A shocking 662 people attempted suicide on Britain’s motorways last year – prompting urgent calls for better safety measures.
Most incidents involved people trying to throw themselves from bridges, the Sunday People reports.
It is not known what proportion resulted in deaths, but Samaritans chief executive Ruth Sutherland told MPs: “These numbers cannot be ignored any longer.
“Deaths by suicide [of all kinds] are three and a half times higher than deaths from road traffic accidents. Every day 17 people in the UK take their own lives and this figure is rising.”
Speaking to MPs, the charity chief warned recently: “Deprivation increases suicide risk by 10 times.


“Suicides in public places are more likely to be seen and therefore there is more scope for them to be prevented.
“Samaritans is calling on all sectors of the transport industry to join us in our mission to reduce the figures.”


A total of 652 incidents were recorded by the Highway Agency in 2013 and 750 in 2014. The Samaritans told Parliament that more than 1,000 lives had been saved on the railways since 2010, when they began working with Network Rail.
Mrs Sutherland urged highways authorities to take a similar approach.
Hotspots for suicide bids include the M602 in Manchester between junctions J2 and J3, where 40 incidents were recorded in 2014 and 2015, and between J9 and J10 on the M65 in Lancashire, which saw 29 attempts.
Highways England has launched a Suicide Prevention Group and said that it works closely with the Samaritans.
Transport Minister Andrew Jones said: “Known suicide hotspots are investigated to look for improvements, such as raising the height of parapets on bridges.”
A Highways England spokesman added: “Every suicide or attempted suicide is one too many.”

If you're finding it difficult to cope you can contact the Samaritans , who are available around the clock, every single day of the year, on 116 123.
mirror.co.uk/news/uk-news/britains-motorways-saw-662-suicide-7725248
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Old May 2nd, 2016, 11:48 PM   #4210
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Highways England to test driverless cars on UK motorways

Agency sets out strategy for connected vehicles and promises to test fully-autonomous cars on motorway network in 2017

Highways England, the agency responsible for managing England’s core A- and M-road network, has published an innovation strategy setting out its goals for connected vehicles and driverless technology.
The strategy elaborates on plans briefly set out by chancellor George Osborne in his March 2016 Budget, and supports his pledge to test fully-autonomous cars on the motorway network within the next 18 months.

Jim O’Sullivan, chief executive of Highways England, said the organisation is “committed to using innovation to benefit the millions of journeys made on England’s strategic road network today and in the future.

“We will work with our partners in the supply chain, technology specialists and the automotive industry to trial new technologies that will help make journeys on our roads safer, more reliable and better informed.”

Besides testing autonomous vehicles on motorways to collect performance data and assess potential impacts on capacity and operations, the multi-million-pound initiative will support a number of other schemes.

These include a trial of acoustic technology in the Hindhead tunnel on the A3 in Surrey to monitor traffic movements and detect any vehicles that are stationary inside the tunnel.

It will also support a trial that will see journey information sent wirelessly to adapted vehicles on the A2 and M2 in London and Kent, routing users around slow traffic or managing lane changing to avoid obstructions ahead.

Another project will look at the value of improving junction signalling on motorways to increase traffic flow, which would involve adapting signal timing at junctions based on time of day or traffic volume.

Elsewhere, Highways England will explore the use of internet of things (IoT) sensors to provide information about the condition of the road, bridge and tunnel infrastructure, opening the door to more targeted and efficient maintenance programmes.

Finally, it will develop the use of the ‘expressway’ concept on A-roads to help traffic flow more freely using technology to provide more in-depth and accurate journey information, alongside physical improvements such as modernised junctions and emergency refuges.

Highways England said its wide-ranging plan will bring benefits to road users around the country and unlock economic growth.

“Quicker, safer roads will improve access to jobs and opportunities,” said roads minister Andrew Jones. “Placing Britain at the forefront of innovation and research in this area will also create more jobs and investment.”
computerweekly.com/news/450280674/Highways-England-to-test-driverless-cars-on-UK-motorways
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Old May 14th, 2016, 09:37 PM   #4211
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Quote:
Originally Posted by Swindon Advertiser

£10m revamp of M4's Junction 16 to start this summer



Work to transform the junction for West Swindon and Royal Wootton Bassett can begin after Swindon and Wiltshire Local Enterprise Partnership (SWLEP) approved the scheme, subject to final due diligence, and agreed to pay £5.92 million towards the cost of the scheme.

The construction costs are expected to be approximately £10 million and will be funded by the partnership and Wichelstowe Joint Venture. It is being delivered by Swindon Borough Council in partnership with Highways England and Wiltshire Council.

The work will see the roundabout altered and slip roads widened. The traffic signals will also be replaced and improvements will be made to the junction’s drainage. The motorway junction redesign is a requirement of the outline planning permission for the major housing development at nearby Wichelstowe and needs to be complete before the 1,100th property on the site is occupied.

Once complete the upgrade is intended to ensure the junction can cope with forecast future traffic levels and cater for future development in surrounding areas. A contractor for the work is expected to be appointed in the coming weeks with the project anticipated to be complete by spring 2018.

About 5,500 vehicles an hour currently use Junction 16 at morning and evening peak times and this is expected to rise by more than 50 per cent over the coming years.

<snip>
http://www.swindonadvertiser.co.uk/n...t_this_summer/
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Old May 14th, 2016, 11:35 PM   #4212
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Quote:
Originally Posted by ChrisZwolle View Post
Smarter motorway opens for drivers on the M1

£205 million upgrade on section of the M1 went live today.

The final phase of a £205 million upgrade to improve journey times and reduce congestion on a 20 mile section of the M1 spanning the East Midlands and South Yorkshire went live today.

The Highways England scheme between junction 28 (Mansfield) and junction 31 (Worksop) is the first smart motorway in the East Midlands and South Yorkshire, where the hard shoulder has been permanently converted to an extra lane.

Variable speed limits will also be used to keep vehicles moving, tackling the stop-start conditions many drivers have experienced in the past.
Full press release: https://www.gov.uk/government/news/s...vers-on-the-m1

There's quite a bit of smart motorways now.
Probably, M3 will be next.
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Old May 15th, 2016, 03:10 PM   #4213
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In the A14 Cambridge plan, I noticed:
A fourth major contract is due to be tendered in 2019, for downgrading and rebuilding 13 miles of the existing A14, including demolition of a large viaduct through Huntingdon, to provide a principal county link road for Huntingdon and the surrounding area.
So what is the downgrading and rebuilding mean? Change it to singlecarrigeway?
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Old May 16th, 2016, 07:54 PM   #4214
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Yes, pretty much. Something similar happened when A1(M) was built in the North.
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Old May 17th, 2016, 03:12 PM   #4215
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Queensferry Crossing


DSC_0360.jpg by Jeroen van Lieshout, on Flickr


DSC_0349.jpg by Jeroen van Lieshout, on Flickr


DSC_0345.jpg by Jeroen van Lieshout, on Flickr


DSC_0328.jpg by Jeroen van Lieshout, on Flickr
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Old May 18th, 2016, 06:21 AM   #4216
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Two bridges will operate at the same time? Or will they demolish the older one?
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Old May 18th, 2016, 01:17 PM   #4217
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Originally Posted by Blackraven View Post
Two bridges will operate at the same time? Or will they demolish the older one?
As far as I know the old bridge will stay but will be used by buses, cyclist and pedestrians.
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Old May 18th, 2016, 02:07 PM   #4218
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Originally Posted by piotr71 View Post
Probably, M3 will be next.
The construction cost in the UK is just incredible. 205 million £ for 20 miles is basically 10 million £ just to convert 1 mile of existing hard shoulder to an ordinary lane, on a more or less rural motorway. That is 8-8,5 million Euro per kilometer. That is what you in Denmark pay for adding an full extra lane, including hard shoulder, on a rural motorway (and that includes overhead gantrys, electronic signs etc.)
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Old May 18th, 2016, 02:25 PM   #4219
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I've noted the high cost of converting a D3M with shoulders to a D4 without shoulders as well. I wonder what the cause is. These projects also tend to require a much longer construction time than shoulder running projects in the Netherlands, which are typically built in 6-9 months with only night-time paving / closures.
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Old May 18th, 2016, 04:28 PM   #4220
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Another UK project with an incredible high cost is the A14 Cambridge to Huntingdon Improvement scheme. 1,5 billion £ (2 billion Euro) for widening of 5,6 km of A1 from D2 to D3, 20 km of new D2 dual carriageway D2 (Huntingdon by-pass) and widening 10-11 km of A14 from D2 to D3 dual carriageway, 8 km local access road and improvements to a number of junctions. All in a relatively rural environment. How can that amount to 2 billion Euro.
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