Simple Cooling System Keeps Permafrost Cool and Roads Level

Have you ever wondered why the road appears stripey when driving along Thompson Drive up to UAF campus during the winter months? The "secret" behind these stripes are thermosyphons, which are hollow tubes that draw heat from the ground and vent it into the air above. This system was put in place to keep permafrost from thawing and consequently warping the road.

CEM Dean Doug Goering, who is part of a study that seeks to improve the longevity of roads in cold climate regions, explains the engineering of this cooling system in a recent KTUU news piece.

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