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Old May 14th, 2019, 09:43 AM   #961
MattiG
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Quote:
Originally Posted by OulaL View Post
This junction should have been built at the same time as the rest of the tunnel.

Now eastbound traffic from western parts of the centre (or v.v.) is forced to go either through the western end of the tunnel (adding some 2 km when compared to the old road) or through the central streets (which somewhat ruins the whole idea of the tunnel). Even if those 2 km pay back in saved time, many drivers choose otherwise.

The reason this junction was not built was mostly political; it would have increased the costs and as it was, the whole tunnel was a topic for fierce political debate. This was a place where they tried to save a little money in order to make it more acceptable. Even then it was only accepted by a narrow margin.
That is true. It is the way on all public infrastructure investments are nowadays handled in Finland. First, make a budget to reach the minimum useful level. Then, cut it 20% to spend much money to reach something lousy.

The discussion on the Tampere tunnel was a big shame. Quite seldom even politicians talk such silly things. But they did it again! The discussion on whether to install the tram traffic in Tampere or not was even sillier. The final decision at the Tampere City Council was translated into a movie of eight minutes:

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Old May 14th, 2019, 11:02 AM   #962
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j much faster would a TBM be in such bedrock?

I happened to have read a press release today about the E39 motorway near Bergen, they blasted through the 9.2 km twin-tube Lysehorn Tunnel in 3 years and 4 months using the explosives method. That seems relatively fast.
The 4 Folle TBMs did 4 x 9km bores in 30 months each...but see Matti and his comment on the 'young' granite there, under a billion years old.

The bores were 10m diameter and 1000m under a mountain with high over pressure though.

https://tunnelingonline.com/final-do...ys-follo-line/

Boring on that scale was considered too risky in Norway until all four machines did their business in the last 6 months. Consider it a 'derisking' exercise.
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Old May 14th, 2019, 11:43 AM   #963
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The bores were 10m diameter and 1000m under a mountain with high over pressure though.
The "business case" in mountainous areas is usually different from the flat areas, too. Building a subway to Helsinki or a street tunnel to Tampere allows digging work tunnels between the tunnel end points. When boring a tunnel under a mountain, this is not usually possible.

Exceptions have been seen. Much of the Lærdal tunnel in Norway was largely build through a 2.1 km access and ventilation tunnel via Tynjadalen valley. Much of the excavated materials were deposited in Tynjadalen with no visible effect on the main valley.



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Old May 16th, 2019, 04:04 PM   #964
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mt 438 Vekaransalmi bridge

Casting of Vekaransalmi bridge has been completed. The whole operation took three days and approximately 2100 m3 of concrete.

Official page (In Finnish): vaula.fi

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Old May 17th, 2019, 10:52 AM   #965
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Casting of Vekaransalmi bridge has been completed. The whole operation took three days and approximately 2100 m3 of concrete.
Historical place. The bridge crosses the Swedish-Russian borderline of 1723-1809.
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Old May 17th, 2019, 01:41 PM   #966
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Through out the history we have plenty of horrific examples of foreign oppression in this country.. Would be better if we stay committed to keep all foreign powers out of our homeland..
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Old May 26th, 2019, 01:08 PM   #967
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In the Woodlands

There is a big region in the southern Finland having the population density well below the average on the same latitudes. The area of the region is 7000+ square kilometers: about three Luxembourgs or one fourth of Belgium. The region is located between two N-S lake systems and the area in between has many NW-SE rigdes, valleys and long lakes. Because of the challenging terrain, the region has remained mainly for forestry and agriculture. There are no big cities.



With the exception of a few trunk roads, the public road network is sparse, windy, and pretty low-grade. A big fraction of the lower-grade roads are gravel roads. Because of forestry, there are countless kilometers of private forest roads for timber collection.

Recently, I spent a semi-wet day for driving 400 kilometers to discover routes from south to north and back mainly over forest roads and the lowest-grade public ones. Some pictures follow:


Connecting Road 3253 Pohja-Västilä


Connecting Road 14247 Längelmäki-Tunkelo


Connecting Road 14299 Talpiainen-Ristijärvi


Forest road Ristijärvi-Halli


Forest Road Kettukorventie ("Fox Forest Road")


Connecting Road 6406 Koskenpää-Keuruu making a descent to the lake Keurusselkä


Connecting Road 14313 Ylä-Vääri - Hyytiälä


Hilly and windy road Orivesi-Kangasala. Until 1970 primary road 9, since that regional road 324, since 1998 secondary road 58.


Driving on wet dirt roads makes the car pretty dirty.
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Old June 4th, 2019, 11:05 AM   #968
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4/E75, the Backbone of Finland

The road 4 runs from Helsinki in the south to Utsjoki at the Norwegian border in the north. The length of the road is almost 1300 kilometers, and it is designated as E75 in addition to the national numbering. It is the most important north-south transport route in Finland. In addition, between Helsinki and Oulu the road is an unofficial divider into culturally and linguistically different West and East Finland.

I have an ongoing project to make dashcam videos for the whole stretch of the road. Recently, I added two new ones to cover 165 kilometers from Lahti to Jyväskylä. Only one gap still remains to be filled: the 120 kilometers from Kemi to Rovaniemi in the southern Lapland.

The collection (the kilometers are approximative):


Helsinki-Lahti 105 km


Lahti-Lusi 42 km


Lusi-Jyväskylä 122 km


Oulu-Jyväskylä 340 km


Kemi-Oulu 105 km


Rovaniemi-Sodankylä 130 km


Sodankylä-Saariselkä 130 km


Saariselkä-Kaamanen 100 km


Kaamanen-Utsjoki 100 km
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Old June 14th, 2019, 08:17 PM   #969
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I made two videos of highway 9/E63, both at 5x speed:

Through greater Tampere, including Tampere eastern ring and the motorway to Akaa, mostly shared with 3; southbound only



Through greater Jyväskylä, including two relatively short motorway sections, one of which shared with 4, 13 and 23; both directions

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Old June 18th, 2019, 07:48 PM   #970
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The government has approved funding for Hämeenkyrö bypass on highway 3/E12. It will be a 10 km long dual carriage road. The current highway is one of a single carriage going through Hämeenkyrö central village (population about 6000) and is one of the worst bottlenecks on this route.

Official information is here https://vayla.fi/pirkanmaalla-suunni...rvi-kyroskoski . The text is in Finnish only but there are links to maps on the left side of the page.

The plans are a couple of years old already, they have just been waiting for funding, which was, as said, approved just now. (It just so happens that the new ministers of state treasury and transportation are from Vaasa and Pirkanmaa districts, respectively.)
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Old June 18th, 2019, 09:26 PM   #971
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Quote:
Originally Posted by OulaL View Post
The government has approved funding for Hämeenkyrö bypass on highway 3/E12. It will be a 10 km long dual carriage road. The current highway is one of a single carriage going through Hämeenkyrö central village (population about 6000) and is one of the worst bottlenecks on this route.
That project removes one of last remaining bottlenecks where a primary road penetrates into a population center south of Oulu (except at the endpoints, of course). The places north of Oulu are not major bottlenecks, because the AADTs are pretty low (except on 4/E8/E75 Kemi-Oulu, which is a multiplex of three routes).

After the completion, the 3/E12 is free of such places for the entire 420 km Helsinki-Vaasa.

The remaining ones:

- 4/9/13/23 Vaajakoski (bad)
- 4 Kärsämäki (not bad, a small village)
- 8 Oravainen
- 8 Kalajoki
- 9 Riistavesi
- 9 Tuusniemi
- 9 Kemie
- 10 Lieto
- 13 Perho
- 13 Kaustinen
- 14 Juva
- 18 several places (a ridiculous primary road)
- 22 Muhos
- 23 Noormarkku
- 23 Pomarkku
- 23 Keuruu
- 23 Varkaus
- 27 Nivala
- 27 Haapajärvi
- 28 Kannus
- 28 Sievi
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Old June 19th, 2019, 09:44 PM   #972
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Recycled Asphalt

My dashcam captured roadworks this Monday. A few kilometers of the road 57 is being repaved using the Remix method. The machines eat and crush the top layer of the old pavement, and about 20% new asphalt is mixed into the mass before putting it back. Thus, the new surface is about 80% recycled material. The machinery makes a train of about 100 meters long. The trains moves constantly, and it makes several hundreds lane metes of new surface in an hour.

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