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Old July 28th, 2014, 04:31 PM   #11061
ChrisZwolle
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N207 Gouda

The Netherlands is almost uniformly flat and features hundreds of canals. It is impossible to build tunnels or fixed bridges across them at all locations, so we have lots and lots of drawbridges and bascule bridges. To avoid excessive delays, busy canals have two bridges at sluices, so while one bridge opens, traffic can use the other bridge.

This is the Juliana sluice at Gouda;

more: http://defotograaf.eu/blog/julianasluis-gouda/
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Old July 29th, 2014, 12:40 AM   #11062
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That thing / idea is so tremendously Dutch Not that anything wrong with that.

American might just make a taller bridge so that it didn't need to open so often...
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Old July 29th, 2014, 03:33 PM   #11063
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A7-A8 Purmerend - Amsterdam

The draft EIS has been published for the construction of shoulder running along A7 and A8 between the Purmerend-Zuid and Zaandam-Zuid interchanges.

This allows for three southbound lanes on A7 and five southbound lanes on A8 during the morning rush hour. Northbound A7 already features shoulder running. The shoulder lane is continuous through the Zaandam motorway interchange.

It is a temporary relief for traffic. An ultimate solution is planned after 2020: 2x6 lanes on A8 and 2x4 lanes on A7.

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Old July 30th, 2014, 02:09 PM   #11064
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Neherkade, Den Haag

The Council of State dismissed the appeal against the reconstruction of the Neherkade in The Hague.

The project will widen the Neherkade to 4 through lanes, with an underpass at the Leeghwaterplein.

It is the first phase to connect it to the Rotterdamsebaan Tunnel. This will increase traffic on the Neherkade.
Neherkade is part of the internal ring road of The Hague.

The project is already underway and will be completed by late 2015.


Neherkade Den Haag by Chriszwolle, on Flickr
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Old July 30th, 2014, 02:36 PM   #11065
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Some disturbing news in some newspapers and on some Dutch news websites today.. Something about the A9 being the most expensive highway without users and that there is no sufficient motive to expand and widen the A1/A6 between Amsterdam and Almere. (based on AADT that is actually decreasing (??)) What is your view on this Chris?
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Old July 30th, 2014, 02:39 PM   #11066
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Is there any new talk of a long tunnel between A44 terminus and Den Haag, near Wassenaar?
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Old July 30th, 2014, 02:42 PM   #11067
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Currently the housing market is mostly dead, it is difficult to get a mortgage, so housing sales are low, and upward mobility is also limited on the housing market. People remain stuck. This is felt most strongly in Almere, which relies on a strong housing market for growth.

The issue pointed out in the media assumes the housing market will never recover, thus traffic to and from Almere will never increase. Which is of course bogus, even in the low economic growth scenario, traffic growth in this area is among the strongest in the Netherlands.

People often mistake short-term changes during recession and economic crises for long-term trends. This motorway expansion project will not only address current traffic needs, but also traffic needs in 2030 and beyond. For some people (journalists) this proves too difficult to grasp.

The reported traffic volumes were also 'creative shopping' in traffic data. The quoted 59,000 vehicles per day is not the representative traffic volume on A9. The current workday AADT on A9 is between 70,000 and 85,000 vehicles per day (Diemen - Holendrecht).
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Old July 30th, 2014, 03:34 PM   #11068
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Quote:
Originally Posted by Suburbanist View Post
Is there any new talk of a long tunnel between A44 terminus and Den Haag, near Wassenaar?
That current route into The Hague has buggered me in the arse a few times with these speed cameras...
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Old July 30th, 2014, 04:20 PM   #11069
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A1, Muiden

Construction of the Muiden Aquaduct.

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Old July 30th, 2014, 04:56 PM   #11070
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Quote:
Originally Posted by Suburbanist View Post
Is there any new talk of a long tunnel between A44 terminus and Den Haag, near Wassenaar?
At the moment, the A4-region is under massive construction. South of Leiden, the Rijnlandroute (N206) is plannend as a 2x2 expressway between the A4 and the A44. The A4 itself is planned to have 2x4 between Den Haag and Leiden, a parallel structure is build between the Rijnlandroute and the N11, and an aquaduct is being build at Leiderdorp.
Those planse are changing the traffic volumes, as shown in the next map:



Furthermore, Den Haag municipality is working at the S100 Neherkade and a new S107-tunnel (Rotterdamsebaan) between knooppunt Ypenburg (A4xA13) and the S100.
In my opinion it seems like both the local and national goverment are planning to direct traffic between Den Haag en Amsterdam off the A44 onto the A4.
I also think that a tunnel underneath Wassenaar wouldn't solve much, since the A44 is substandard as well, with little room for improvement.
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Old July 30th, 2014, 05:01 PM   #11071
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Without having read the article, not hindered by any factual knowledge :-), and chris' comments, I'm wondering why they chose to do the A1-A6 at this point in time. That could be a fair point.

If it's that far forward looking, and not guaranteed, and we're already solving this, that's nice, but why not start with more pressing areas, around Rotterdam, projects such as the blankenburg tunnel and A13/A16, and maybe some work on the A20.

The traffic jams are there right now, and will not be fixed well into 2020+. Why solve for traffic jams that may occur in 2030 in Amsterdam?

Don't get me wrong, I'm hoping for a robust road network throughout the Netherlands, I'm just wondering about sequencing.



Quote:
Originally Posted by ChrisZwolle View Post
Currently the housing market is mostly dead, it is difficult to get a mortgage, so housing sales are low, and upward mobility is also limited on the housing market. People remain stuck. This is felt most strongly in Almere, which relies on a strong housing market for growth.

The issue pointed out in the media assumes the housing market will never recover, thus traffic to and from Almere will never increase. Which is of course bogus, even in the low economic growth scenario, traffic growth in this area is among the strongest in the Netherlands.

People often mistake short-term changes during recession and economic crises for long-term trends. This motorway expansion project will not only address current traffic needs, but also traffic needs in 2030 and beyond. For some people (journalists) this proves too difficult to grasp.

The reported traffic volumes were also 'creative shopping' in traffic data. The quoted 59,000 vehicles per day is not the representative traffic volume on A9. The current workday AADT on A9 is between 70,000 and 85,000 vehicles per day (Diemen - Holendrecht).

Last edited by McBeans; July 30th, 2014 at 05:06 PM.
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Old July 30th, 2014, 05:16 PM   #11072
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From all the Schiphol - Amsterdam - Almere sub projects, one could argue that A9 (Diemen - Holendrecht) and A6 through Almere are the least urgent right now.

But the project is already constructed over a 10-15 year timespan. For example, the A9 widening won't be completed until 2024, and A6 through Almere won't be completed until about 2022-2024 either.

The way this project is widened, with tunnels, bridges and local-express systems, doesn't make it very useful to postpone adding a lane until a later time. For example, the A9 Gaasperdam Tunnel, A1 Muiden Aquaduct and A6 Holland Bridge will all be built for 2030+ traffic, it doesn't make much sense to do this in two phases (one half tunnel or one half bridge at the time). That solution won't save any money either.

It needs to be stressed that this € 4.5 billion project is not spend in one year, but rather 30 years, as they are several DBFM contracts based on availability payments. Postponing certain items won't save much money over the next few years, even if they are under construction right now.
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Old August 1st, 2014, 11:49 PM   #11073
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On the A1 at Weesp there have been problems and long delays because of a defective bridge. For hours there have been long queues in the direction of Amsterdam. At around 22:00 the defect was repaired and the motorway reopened. At the beginning of the evening the Vecht Bridge at Muiden also had problems. It led to a long traffic jam. People got out of their cars and played football on the motorway. There were people who went sunbathing. It is not clear how the error arose. In the direction of Amersfoort, the bridge was also equally defective. Also in that direction long delays.

Three defective bridges at he same time in the same area. What are the odds?
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Old August 2nd, 2014, 08:51 PM   #11074
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In 2010, both the 's-Hertogenbosch and Eindhoven bypasses (A2) were expanded to a local-express system.

I compiled some traffic data of both bypasses before and after widening.

Traffic growth was strongest in the Eindhoven area, where AADT figures were as much as 25% higher in 2013 than they were in 2006.

1. 's-Hertogenbosch:


2. Eindhoven:


(KP means 'knooppunt', a motorway-to-motorway interchange).

Although both feature a 4x2 layout, there are some differences. At 's-Hertogenbosch, both the local and express lanes are part of A2 and designed at full motorway specifications. At Eindhoven, the local lanes are designed like an expressway and do not have motorway status.

The local lanes are considerably busier than the express lanes around 's-Hertogenbosch, where the local lanes carry two-thirds of all traffic. The highest AADT is 155,000 vehicles per day. In 's-Hertogenbosch's case, the local lanes may be underdesigned, especially the part where A59 is also routed across it.

In Eindhoven, the express lanes appear underdesigned, with 83,000 vehicles per day at the western side of Eindhoven, on 2x2 lanes. At Eindhoven, the express lanes carry generally more traffic than the local lanes, but the traffic volumes on the local lanes vary considerably more than at 's-Hertogenbosch, between 35,000 and 86,000 vehicles per day. The stretch near Eindhoven Airport carries 170,000 vehicles per day, the busiest stretch of road outside the 'Randstad' agglomeration.
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Old August 3rd, 2014, 04:54 PM   #11075
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A37, after|before

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Old August 4th, 2014, 08:43 PM   #11076
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A2 Maastricht

July 2014 aerial photos of the A2 Maastricht tunnel project.

1. South side of Maastricht


2. Project overview, looking east-northeast.


3. North side, Kruisdonk motorway interchange (A2/A79)
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Old August 4th, 2014, 10:18 PM   #11077
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Something that always puzzle me regarding this project is this: much fuss was done about the fact the highway, if built on surface, would "tear apart" Maastricht, and that it should be put underground or on a bypass to allow the old 3+3 semi-expressway to be put back on 'human scale'.

However, parallel to and closer to the city center than A2, there is a major railway that severs connection between neighborhoods much more than the highway...

I like the tunnel project, but I think there are tripple standards regarding the impact of highways on the fringes of cities.
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Old August 4th, 2014, 11:09 PM   #11078
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Quote:
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Something that always puzzle me regarding this project is this: much fuss was done about the fact the highway, if built on surface, would "tear apart" Maastricht, and that it should be put underground or on a bypass to allow the old 3+3 semi-expressway to be put back on 'human scale'.

However, parallel to and closer to the city center than A2, there is a major railway that severs connection between neighborhoods much more than the highway...

I like the tunnel project, but I think there are tripple standards regarding the impact of highways on the fringes of cities.
a) Would you think that a railway enlarging construction project of similar proportion would be allowed to run on the surface in similar conditions?

b) From personal experience I have to say that motorways are much less "living friendly" than a busy railway line.
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Old August 4th, 2014, 11:34 PM   #11079
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Quote:
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a) Would you think that a railway enlarging construction project of similar proportion would be allowed to run on the surface in similar conditions?
Amsterdam-Utrecht railway was widened to 4-track some 10 years ago.

Quote:
b) From personal experience I have to say that motorways are much less "living friendly" than a busy railway line.
Even state-of-the-art highway with modern noise-walls and porous pavement?
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Old August 4th, 2014, 11:47 PM   #11080
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Amsterdam - Utrecht railway runs in the middle of nothing for 90% of its course also, in urban environments railway use to already have more tracks than in mainlines, so the enlargement usually doesn't impact too much on spaces.

Connections between neighborhoods are not severed in the same way, for many reasons:
- a railway can have level crossings, letting people roam seamlessly when no trains are running, while motorway must be completely grade separated
- cities usually developed after railways, so neighborhoods were never actually "separated" because they were planned around the existing paths
- a motorway is much wider than a railway (even a 4 track one)

Speking of noise, the two emit a very different type of noise. Motorways may have overall lower emissions, but the sound is continuous and this makes it much more annoying.
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