Quote:
Originally Posted by Beedok
Heating an entire road? That seems like a rediculous waste of money...
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Maybe not. In the long run it may save money - balance installation and operation costs vs. the cost of maintaining roads in the winter, especially on steeper grades like this one where they plow more often and probably put down more salt; plus the savings on road damage from salt and freeze-thaw cycles, meaning longer periods between repaving and rebuilding the road. If it makes the road safer there's savings there too in terms of reduced accidents, injuries, and lower emergency response costs.
SteelTown posted this Spec video in the
Canada forum highways thread showing how they installed a liquid-based system under the MacNab St. bus terminal:
http://www.thespec.com/video/2498004
That's the same system GO has been putting in when it rebuilds platforms.
There are also electric systems that use cables which act as heating elements.
I'm curious what they used for Beckett Dr. - its length and grade may have meant they couldn't go with the glycol tubes, or maybe they installed a series of separate systems each with their own pump.
Here's a neat story about solar-powered glass road surfaces:
http://www.theglobeandmail.com/repor...rticle4197451/