Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-23-12, 11:08 AM   #1
RolandArthur
Senior Member
Thread Starter
 
RolandArthur's Avatar
 
Join Date: Mar 2011
Location: Zaandam, Netherlands
Bikes:
Posts: 104
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Heated cycle lanes to warm Dutch winter cyclists

Infrastructure in Holland is pretty well adapted to cyclists; there is always room for improvement though. I thought we had a great improvement recently with the green lights for cyclists when it rains (see here) but this one is surely a winner:

Towns in the Netherlands are considering a proposal to heat cycle lanes to encourage greater use of bicycles in winter. In the near future a trial will start in the city Zutphen and the province Utrecht.

The scheme will use geo-thermal energy to prevent ice forming. This means the asphalt will be cool in the summer and warm in the winter.

The prognosis is that these bike paths will hardly cost more than normal bike paths and very little energy is needed to keep the paths warm in the winter. The reduction in crashes due to iced over roads will most likely outweigh the additional costs of creating the paths.

I guess this is why you can be car-free in Holland without getting stares.


http://www.telegraaf.nl/reiskrant/fi...erwarmd__.html

And for those of you who want an English source:

http://www.bbc.co.uk/news/world-europe-20041522
RolandArthur is offline   Reply With Quote
Old 10-23-12, 11:20 AM   #2
Notso_fastLane
Senior Member
 
Notso_fastLane's Avatar
 
Join Date: Dec 2011
Location: Medford, OR
Bikes: Kona MTN bike, Bent TW Elegance
Posts: 710
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You Dutch are so spoiled. (And I'm very jealous!)
Notso_fastLane is offline   Reply With Quote
Old 10-24-12, 02:17 PM   #3
bigbadwullf
Senior Member
 
bigbadwullf's Avatar
 
Join Date: Apr 2011
Location: West, Tn.
Bikes:
Posts: 1,763
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yup, when you allow gas to get to $10 a gallon this is what you are forced to do. Be careful what you ask for...
bigbadwullf is offline   Reply With Quote
Old 10-24-12, 03:39 PM   #4
Fenway
Senior Member
 
Fenway's Avatar
 
Join Date: Sep 2009
Location: Boston, MA
Bikes: 1983 Peugeot UO14, KHS Green-Heavily modified, 1972 Raleigh Sprite 27" (work in progress)
Posts: 422
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Wouldn't this create issues with fog and condensation on the paving surface making it slippery?
Fenway is offline   Reply With Quote
Old 10-24-12, 04:12 PM   #5
prathmann
Senior Member
 
Join Date: Nov 2008
Location: Bay Area, Calif.
Bikes:
Posts: 6,093
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 82 Post(s)
Quote:
Originally Posted by Fenway View Post
Wouldn't this create issues with fog and condensation on the paving surface making it slippery?
Fog and condensation occur when you take warmer, humid air and cool it or have it come in contact with a cold surface. This would be the opposite - the cold and dry ambient air contacting a warmer surface of the heated pavement. Sounds reasonable for areas that have enough cycle traffic to justify the energy expenditure.
prathmann is offline   Reply With Quote
Old 10-24-12, 04:24 PM   #6
myrridin
Banned.
 
Join Date: Jul 2010
Bikes:
Posts: 2,325
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
While the geothermal is obviously fairly low energy use; what mechanisms are being used to deliver that energy to the road surfaces and what is the source of the energy for that delivery?
myrridin is offline   Reply With Quote
Old 10-24-12, 04:25 PM   #7
myrridin
Banned.
 
Join Date: Jul 2010
Bikes:
Posts: 2,325
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by prathmann View Post
Fog and condensation occur when you take warmer, humid air and cool it or have it come in contact with a cold surface. This would be the opposite - the cold and dry ambient air contacting a warmer surface of the heated pavement. Sounds reasonable for areas that have enough cycle traffic to justify the energy expenditure.
A warm heated surface will warm the air and potentially cause condensation. But it will also cause additional convection currents. It will be interesting to see what unintended side effects this has.

And if the route already has enough traffic to justify the energy expenditure it would not likely have much ice accumulation, since the traffic would tend to melt/disappate the ice.
myrridin is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 -6. The time now is 01:55 PM.