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 Yesterday, 10:31 PM   #11881
ChrisZwolle
Road user
 
ChrisZwolle's Avatar
 
Join Date: May 2006
Location: Zwolle
Posts: 34,551
Likes (Received): 5091

Quite frankly I'm more concerned about air quality in urban streets and along motorways than global climate which we can allegedly alter if CO2 emissions drop. CO2 is not harmful to health, but exhaust is. So I think electric or hydrogen cars are a huge step forward in cleaner mobility even if the total CO2 balance is not better.
__________________

my clinched highways • highway photography @ Flickr and Youtube

Last edited by ChrisZwolle; Yesterday at 11:10 PM. Reason: typo
ChrisZwolle no está en línea   Reply With Quote

Sponsored Links
 
Old Yesterday, 10:36 PM   #11882
aswnl
Registered User
 
Join Date: Jun 2004
Location: near Amsterdam (NL)
Posts: 806
Likes (Received): 22

16(00) can be devided by 2 and 4 and results in a full 100.
12(00) can be devided by 2,3,4 and 6.
10(00) can be devided by 2 and 5.

The "twaalftallig stelsel" (system of the number 12) gives most opportunities to place signs at a multiple of exact 100m, with the same length inbetween the signs. There's no need to go with 25 or 50 meter in between. That's why in NL at the end of the sixties it was decided to use 1200m for the startsign of an exit.

Last edited by aswnl; Yesterday at 10:51 PM.
aswnl no está en línea   Reply With Quote
Old Yesterday, 10:40 PM   #11883
Penn's Woods
Deadpan Snarker
 
Join Date: Apr 2010
Location: Philadelphia
Posts: 4,964
Likes (Received): 463

Quote:
Originally Posted by Des View Post
It all depends on where the power that the electric cars use to charge comes from. If you take Beijing as an example you can replace all cars with electric cars but as long as the power comes from coal power plants located in the direct vicinity or even in the city, the air quality doesn't improve much and it is actually better for total CO2 emission per kilometer driven to drive light, fuel efficient diesel or petrol cars.

And than we leave the battery production and recycling dilemma even out of the equation.

Also with the popular hybrids take into account that the cars easily weigh 200 kilograms more than pure electric or diesel / petrol cars. This extra weight of plugin hybrids also requires extra electricity when running electric and more electricity means more CO2 in production as well - until we get C02 neutral or low CO2 power supply.

I recently drove a hydrogen concept car, but also hydrogen requires a lot of power to produce. So even when hydrogen in the car only lets clean, clear water leave the exhaust it is not perfect.

Audi has a natural gas concept which includes a very clean e-gas based supply chain that reduces C02 emissions across the entire process from energy production to driving emissions. http://www.audi.de/content/de/brand/...ck-g-tron.html
I see.

And if congestion causes pollution, an electric car presumably contributes just as much to that as a non-electric car of the same size....
__________________
Fly, Eagles, Fly!
Penn's Woods está en línea ahora   Reply With Quote
Old Yesterday, 11:08 PM   #11884
Slagathor
Gay love is love too
 
Slagathor's Avatar
 
Join Date: Jul 2007
Location: The Hague
Posts: 6,589
Likes (Received): 1704

Quote:
Originally Posted by ChrisZwolle View Post
Quite frankly I'm more concerned about air quality in urban streets and along motorways than global climate which whe can allegedly alter if CO2 emissions drop. CO2 is not harmful to health, but exhaust is. So I think electric or hydrogen cars are a huge step forward in cleaner mobility even if the total CO2 balance is not better.
I concur. Every time I cycle through the city and some dirty scooter passes me, I try not too think about what I'm inhaling.
Slagathor no está en línea   Reply With Quote
Old Today, 12:02 AM   #11885
ChrisZwolle
Road user
 
ChrisZwolle's Avatar
 
Join Date: May 2006
Location: Zwolle
Posts: 34,551
Likes (Received): 5091

N31 Leeuwarden

A video of the newly opened N31 around Leeuwarden. It looks quite nice, although the older part (first in the video) has subsided a bit, quite fast for an expressway that opened just 7 years ago. It's a recurring problem in the Netherlands with its soft soils.

Note that there is only 1 through lane at the 'Werpsterhoek' Interchange. The video includes two Dutch aquaducts (waterway underpasses).

__________________

my clinched highways • highway photography @ Flickr and Youtube
ChrisZwolle no está en línea   Reply With Quote
Old Today, 12:25 AM   #11886
Suburbanist
on the road
 
Suburbanist's Avatar
 
Join Date: Dec 2009
Location: the nod between Breda, Eindhoven and 's-Hertogenbosch
Posts: 20,449
Likes (Received): 7237

Is there any bare concrete pavement sector on any A-route in Netherlands left, or have they all been covered with porous asphalt?
__________________
"For every complex problem there is a solution that is simple, clear and wrong."
Suburbanist no está en línea   Reply With Quote
Old Today, 01:49 AM   #11887
Kanadzie
Registered User
 
Kanadzie's Avatar
 
Join Date: Jan 2014
Posts: 834
Likes (Received): 205

Quote:
Originally Posted by Penn's Woods View Post
Sure. Don't know what I was thinking. (Well, "a mile is 1,760 yards* so it must be a slightly smaller number of meters" is what I was thinking...)

Now that you mention it, France or Belgium uses a lot of 1600-meter signs, I think... I remember wondering if they'd just picked up an American standard somehow and metricized it.

*That sound you hear in the distance is Spinoza's head exploding.
Most of the exits in Quebec (e.g. Montreal area) are signed at 800 m, sometimes 1.5 km

But the roads were built when they used imperial system, and the sign used to say 1/2 m and 1 mile
Kanadzie está en línea ahora   Reply With Quote


Reply

Tags
congestion, dutch, friesland, highways, motorways, netherlands

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



All times are GMT +2. The time now is 02:08 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Feedback Buttons provided by Advanced Post Thanks / Like v3.2.5 (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.

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

Hosted by Blacksun, dedicated to this site too!
Forum server management by DaiTengu