daily menu » rate the banner | guess the city | one on oneforums map | privacy policy | DMCA | news magazine | posting guidelines

Go Back   SkyscraperCity > Infrastructure and Mobility Forums > Highways & Autobahns

Highways & Autobahns All about automobility



Global Announcement

As a general reminder, please respect others and respect copyrights. Go here to familiarize yourself with our posting policy.


Reply

 
Thread Tools
Old March 22nd, 2013, 09:33 AM   #1601
NordikNerd
Rail & Road traveller
 
NordikNerd's Avatar
 
Join Date: Feb 2011
Location: Linköping
Posts: 2,747
Likes (Received): 1408

Quote:
Originally Posted by riiga View Post
Trafikverket will start signing the new riksväg 15 now in March. They estimate all signage will have been put up sometime in May.

The route in Google Maps.

More info (in Swedish)
Only new signs ? Usually national roads are wider and straighter compared to the county roads.
NordikNerd no está en línea   Reply With Quote

Sponsored Links
Old March 22nd, 2013, 11:50 AM   #1602
MattiG
Registered User
 
MattiG's Avatar
 
Join Date: Feb 2011
Location: Espoo FI
Posts: 1,801
Likes (Received): 615

Quote:
Originally Posted by NordikNerd View Post
Only new signs ? Usually national roads are wider and straighter compared to the county roads.
I feel that it is rather a typical way in Sweden to introduce new national roads by just changing the signs. The correlation between the road quality and the rank in the road class hierarchy is somewhat vague.

My baseline reference source is the Nordenatlas map book from 1980's. A lot of three-digit rural roads shown in that book are currently two-digit national roads although no major improvements have been done.
MattiG no está en línea   Reply With Quote
Old March 22nd, 2013, 01:57 PM   #1603
riiga
Registered User
 
riiga's Avatar
 
Join Date: Nov 2009
Location: Linköping
Posts: 441
Likes (Received): 126

Quote:
Originally Posted by NordikNerd View Post
Only new signs ? Usually national roads are wider and straighter compared to the county roads.
Well, they write "Vägsträckan mellan Halmstad och Karlshamn har så god standard att den klassas om till riksväg."
riiga no está en línea   Reply With Quote
Old March 22nd, 2013, 02:47 PM   #1604
MattiG
Registered User
 
MattiG's Avatar
 
Join Date: Feb 2011
Location: Espoo FI
Posts: 1,801
Likes (Received): 615

Quote:
Originally Posted by riiga View Post
Well, they write "Vägsträckan mellan Halmstad och Karlshamn har så god standard att den klassas om till riksväg."
The vision to connect Halland and Blekinge by a new road, "Tvärleden", has been on the regional agenda for years. The missing link Markaryd-Osby was opened to traffic in May 2011, and the decision to sign the route as a national road was made last year.
MattiG no está en línea   Reply With Quote
Old March 22nd, 2013, 10:00 PM   #1605
ChrisZwolle
Road user
 
ChrisZwolle's Avatar
 
Join Date: May 2006
Location: Zwolle
Posts: 43,595
Likes (Received): 19389

Markaryd - Osby was also rebuilt recently, some of which across a new alignment.
ChrisZwolle no está en línea   Reply With Quote
Old March 23rd, 2013, 08:13 PM   #1606
NordikNerd
Rail & Road traveller
 
NordikNerd's Avatar
 
Join Date: Feb 2011
Location: Linköping
Posts: 2,747
Likes (Received): 1408

Quote:
Originally Posted by MattiG View Post
I feel that it is rather a typical way in Sweden to introduce new national roads by just changing the signs. The correlation between the road quality and the rank in the road class hierarchy is somewhat vague.

My baseline reference source is the Nordenatlas map book from 1980's. A lot of three-digit rural roads shown in that book are currently two-digit national roads although no major improvements have been done.
On the other hand some of the national roads were downgraded to county roads in the 1980's.

One example is the former national road 74 the motorway Stockholm-Stavsnäs (Värmdö) now county road 222.

The reason for downgrading was that the road was used mainly by locals and was of no national importance.
NordikNerd no está en línea   Reply With Quote
Old March 23rd, 2013, 09:44 PM   #1607
MattiG
Registered User
 
MattiG's Avatar
 
Join Date: Feb 2011
Location: Espoo FI
Posts: 1,801
Likes (Received): 615

Quote:
Originally Posted by NordikNerd View Post
On the other hand some of the national roads were downgraded to county roads in the 1980's.

One example is the former national road 74 the motorway Stockholm-Stavsnäs (Värmdö) now county road 222.

The reason for downgrading was that the road was used mainly by locals and was of no national importance.
Still that takes place more seldom compared to upgrades by signing.

An interesting fluctuation has been seen in Norrbotten, where the current road 99 was earlier 400, and 99 before, originally 400.
MattiG no está en línea   Reply With Quote
Old March 25th, 2013, 11:30 AM   #1608
NordikNerd
Rail & Road traveller
 
NordikNerd's Avatar
 
Join Date: Feb 2011
Location: Linköping
Posts: 2,747
Likes (Received): 1408

Quote:
Originally Posted by MattiG View Post
Still that takes place more seldom compared to upgrades by signing.

An interesting fluctuation has been seen in Norrbotten, where the current road 99 was earlier 400, and 99 before, originally 400.
I think a national road should pass through at least 2 counties (län) or it can be a county road.

The national road 99 is only located in one county (Norrbotten) so there was no reason to rename it.
NordikNerd no está en línea   Reply With Quote
Old March 25th, 2013, 03:20 PM   #1609
MattiG
Registered User
 
MattiG's Avatar
 
Join Date: Feb 2011
Location: Espoo FI
Posts: 1,801
Likes (Received): 615

Quote:
Originally Posted by NordikNerd View Post
I think a national road should pass through at least 2 counties (län) or it can be a county road.

The national road 99 is only located in one county (Norrbotten) so there was no reason to rename it.
I did not quite get you. The current 99 has been renumbered at least three times (partially or in total).

The policy to call national roads only those passing throught at least two counties is not very strict: The following ones are located only in one län:

Skåne: 9, 11, 13, 17, 19, 21, 24
Västgötaland: 46
Södermanland: 53
Värmland: 61, 62
Stockholm: 73, 75
Västerbotten: 92
Norrbotten: 94, 97, 98, 99
MattiG no está en línea   Reply With Quote
Old March 25th, 2013, 06:33 PM   #1610
gincan
Gincan
 
Join Date: Feb 2006
Posts: 887
Likes (Received): 183

Quote:
Originally Posted by ChrisZwolle View Post
Markaryd - Osby was also rebuilt recently, some of which across a new alignment.
Actually, Markaryd-Osby didn't even exist, the two villages were only semi conected by 4 meter wide forest dirt roads. They were only paved in the mid 1990s and never widened.
gincan no está en línea   Reply With Quote
Old March 25th, 2013, 11:17 PM   #1611
häggblom
Registered User
 
Join Date: Dec 2005
Location: Gävle
Posts: 117
Likes (Received): 20

Quote:
Originally Posted by NordikNerd View Post
Only new signs ? Usually national roads are wider and straighter compared to the county roads.
Hehe, I was thinking about to make a post about the new "riksväg" 15 just this weekend after doing some reading about it!

And just as already have been said, actually almost one third of this new "riksväg" is a completely new road in a new alignment where there never has been a "real road" before! Just dark n deep forest... That´s the part between Markaryd and Osby (+ the bypass of Markaryd...)
So thats not to bad I would say, not very often a brand new road like that is built in Sweden, ie. not just a new "better" road next to the old one and "replacing" the old one. In that way, this really is a NEW "riksväg", where there newer before been a predecessor.

This new road will be heavily used by Volvo, since Volvo cars bodyworks ("steel-press plant") is located in the small town of Olofström, just were the road starts in the east. So now a lot of road transports from there will have a much shorter n straighter road to the E6 and also to the harbour in Halmstad!

häggblom no está en línea   Reply With Quote
Old March 26th, 2013, 09:30 AM   #1612
NordikNerd
Rail & Road traveller
 
NordikNerd's Avatar
 
Join Date: Feb 2011
Location: Linköping
Posts: 2,747
Likes (Received): 1408

Quote:
Originally Posted by häggblom View Post
This new road will be heavily used by Volvo, since Volvo cars bodyworks ("steel-press plant") is located in the small town of Olofström, just were the road starts in the east.
Beeing a railwayfan I hope this road will not be a threat to the railway Olofström-Älmhult, which transports lots of goods from the Volvo plant.
NordikNerd no está en línea   Reply With Quote
Old March 27th, 2013, 01:59 PM   #1613
häggblom
Registered User
 
Join Date: Dec 2005
Location: Gävle
Posts: 117
Likes (Received): 20

Quote:
Originally Posted by NordikNerd View Post
Beeing a railwayfan I hope this road will not be a threat to the railway Olofström-Älmhult, which transports lots of goods from the Volvo plant.
Aha, I didn´t know about those plans, but just checked them out - and I see the project goes by the name "Sydostlänken".
häggblom no está en línea   Reply With Quote
Old April 2nd, 2013, 09:27 PM   #1614
NordikNerd
Rail & Road traveller
 
NordikNerd's Avatar
 
Join Date: Feb 2011
Location: Linköping
Posts: 2,747
Likes (Received): 1408

Road 34 (formerly 36)

Road 34 Linköping -Motala. Northbound of Linköping starts out as a short strech of 4 lane motorway until it reaches the E4.


image hosted on flickr

image hosted on flickr



North of the E4 it becomes a 2+1 road, still with speed limit 110km/h
image hosted on flickr




image hosted on flickr


image hosted on flickr


image hosted on flickr

The Aqueduct for the canal

image hosted on flickr

Uphill, means trucks may slow down the traffic on a 2+1 road.

image hosted on flickr

A poor section of the road 34, here it's narrow with 70 km/h speed limit.

Last edited by NordikNerd; April 2nd, 2013 at 09:43 PM.
NordikNerd no está en línea   Reply With Quote
Old April 3rd, 2013, 11:59 AM   #1615
kanterberg
Registered User
 
kanterberg's Avatar
 
Join Date: Aug 2009
Location: Stockholm
Posts: 176
Likes (Received): 4

Increasing capacity by reducing capacity?

The Easter holiday means more traffic on the roads than usual. When traffic increases some 2+1-roads will simply reach max capacity with long queues and traffic jams as a result. The E4 north of Gävle is notorious for this, especially with people returning south after the Christmas and Easter holidays. Normally, the 2+1-road (110km/h IIRC) works just fine, but on peak hours during holidays the road doesn't have enough capacity.

On Easter Monday they tested a rather unusual model to solve this problem. They simply introduced a temporary overtaking ban on a 50 km long stretch between Tönnebro and Gävle N (southbound). The overtaking lanes were shut down with physical barriers and only one lane remained open.

The Traffic Administration and the police claim the experiment was successful as traffic flowed, albeit slowly. No accidents were reported. The argument is that by closing the overtaking lane dangerous high speed merging into one lane can be avoided. That way you also avoid situations the hard braking that sometimes propagates backwards in heavy traffic and causes traffic jams.

The Traffic Administration is going to evaluate the experiment and possibly start using this model on other 2+1-roads during days with heavy traffic.

Personally I'm not sure what I think about this. Logically it's hard to accept that road capacity would increase by closing the overtaking lane.

It would be interesting to hear what you have to say. Does anyone know of other examples of this procedure?



Local newspaper reporting on the experiment:
http://gd.se/nyheter/gavle/1.5737217...iment-pa-e4-an
__________________

Swede, häggblom liked this post
kanterberg no está en línea   Reply With Quote
Old April 3rd, 2013, 12:25 PM   #1616
ChrisZwolle
Road user
 
ChrisZwolle's Avatar
 
Join Date: May 2006
Location: Zwolle
Posts: 43,595
Likes (Received): 19389

They did not actually reduce capacity. The capacity of a 2+1 road is determined by the 1-lane sections. However, the lane reductions from 2 to 1 do become bottlenecks due to merging traffic. Overall capacity remains the same.
__________________

my clinched highways / travel mapping • highway photography @ Flickr and Youtube

Swede, Suburbanist liked this post
ChrisZwolle no está en línea   Reply With Quote
Old April 3rd, 2013, 01:44 PM   #1617
MattiG
Registered User
 
MattiG's Avatar
 
Join Date: Feb 2011
Location: Espoo FI
Posts: 1,801
Likes (Received): 615

Quote:
Originally Posted by kanterberg View Post
On Easter Monday they tested a rather unusual model to solve this problem. They simply introduced a temporary overtaking ban on a 50 km long stretch between Tönnebro and Gävle N (southbound). The overtaking lanes were shut down with physical barriers and only one lane remained open.

[...]

It would be interesting to hear what you have to say. Does anyone know of other examples of this procedure?

Yes...

A similar phenomena was clearly visible on the 2+1 road (no middle barrier) between Lahti and Heinola on the 4/E75 Finland before it was upgraded to a full-scale motorway. The panic mode behavior at the end of lane caused shockwaves and fatalities during the congested hours. Removing the overtaking lanes calmed down the situation, and the average speed of the traffic flow improved. The length of the strecth was about 35 kilometres.

Varying speeds on a congested road are the key issue. About 20 years ago, the situation on 75 km strecth on the road 3/E12 north of Helsinki was desperate. The 1+1 road was fully congested up to the jam density. The travel time from Helsinki to Hämeenlinna (100 km north) could be 2-3 hours at the peaks. The motorway plans were in place, but the construction had not begun. The temporary solution was to drop the speed limit on the whole section to 80 km/h. The need to overtake heavy vehicles disappeared, and the shockwaves disappeared, too. Even the densest traffic flowed smoothly about 80 km/h, and the traveling times dropped significantly.
__________________

Swede liked this post
MattiG no está en línea   Reply With Quote
Old April 3rd, 2013, 01:54 PM   #1618
MattiG
Registered User
 
MattiG's Avatar
 
Join Date: Feb 2011
Location: Espoo FI
Posts: 1,801
Likes (Received): 615

Quote:
Originally Posted by ChrisZwolle View Post
They did not actually reduce capacity. The capacity of a 2+1 road is determined by the 1-lane sections. However, the lane reductions from 2 to 1 do become bottlenecks due to merging traffic. Overall capacity remains the same.
Well... It is not that straightforward.

The overall capacity is the number on lanes at the bottleneck section multiplied by the average speed at that section. The result is expressed by number of vehicles per unit of time.

The 2+1 sections help to increase the average speed of the traffic flow if the number of slow vehicles is relatively low. Thus, in theory, closing the overtaking lanes decreases the capacity.

What happened in Sweden: Closing the overtaking lanes removed the shockwaves: the reasons for the slower and unpredictable traffic flow, and that improvement might have compensated the reduction of the horizontal capacity. The characteristics of a congested traffic flow differs a lot of from a non-congested one, and the relationship between them is not linear.
MattiG no está en línea   Reply With Quote
Old April 3rd, 2013, 02:59 PM   #1619
NordikNerd
Rail & Road traveller
 
NordikNerd's Avatar
 
Join Date: Feb 2011
Location: Linköping
Posts: 2,747
Likes (Received): 1408

Road 50 Motala-roadwork

image hosted on flickr

Roadwork in Motala. A new section of road 50 is going to be built.

image hosted on flickr


image hosted on flickr


image hosted on flickr

The Road 50 is mostly a 2+1 road north of Motala
image hosted on flickr


image hosted on flickr


image hosted on flickr


image hosted on flickr


image hosted on flickr


image hosted on flickr

Quite a few trucks on this section of the road 50 "Bergslagsdiagonalen"
__________________

Suburbanist liked this post
NordikNerd no está en línea   Reply With Quote
Old April 3rd, 2013, 05:47 PM   #1620
riiga
Registered User
 
riiga's Avatar
 
Join Date: Nov 2009
Location: Linköping
Posts: 441
Likes (Received): 126

Nice pictures NordikNerd!
riiga no está en línea   Reply With Quote


Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Related topics on SkyscraperCity


All times are GMT +2. The time now is 06:15 AM.


Powered by vBulletin® Version 3.8.11 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Feedback Buttons provided by Advanced Post Thanks / Like (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.

SkyscraperCity ☆ In Urbanity We trust ☆ about us | privacy policy | DMCA policy

tech management by Sysprosium