Riddle me this. I have long noticed that outer lanes on M14 between Northville and Ann Arbor have had what looks like diamond cut grooves at occasional intervals -- three parallel cuts on both sides of the lane. These have now seriously deteriorated, as seen in these pictures I snapped on my way to AA yesterday.
I always speculated that this was some sort of an experiment to keep the road from breaking up. [When M14 was originally built the road quickly cracked apart and had to be completely rebuilt after only 10-15 years of use.]
So, does anyone know the logic behind these grooves? No matter what the reason, it seems they have backfired.
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Thread: M14 Grooves become Ruts
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April-17-09, 08:22 AM #1
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M14 Grooves become Ruts
Last edited by Lowell; April-17-09 at 09:27 PM.
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