This is a good question. The double wires are actually hoses. Remember the hose that rang the bell at the old gas stations? You will also see them at pharmacy windows.
The hose creates a pressure pulse that the BOX on the side of the road is counting. When you see a pair of hoses, they both go to one box that is also counting the time lapse (in milliseconds)for your front tires to travel from one hose to the other, and this is how your SPEED as well as your presence is detected.
The boxes are usually placed by the highway dept. Most of the time it's due to there being a high number of crashes in that stretch of highway, or complaints. Sometimes to gather input for construction projects.
2007-01-09 06:25:26
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answer #1
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answered by Tinker 1
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Double Wires
2016-10-07 07:32:33
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answer #2
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answered by blea 4
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That's basically exactly what that's for. The town is trying to monitor the amount of traffic at that point or intersection. It's not to monitor speed.
They may be debating whether or not to put a traffic light over in the area.
2007-01-09 06:11:58
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answer #3
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answered by Long Island GQ 1
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They count vehicles, usually for study to see if there is need for a stop sign or traffic signal. They can be placed by the city, county, or state highway department, depending on what type of road it is.
2007-01-09 06:12:11
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answer #4
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answered by smartypants909 7
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sometimes the wires are laid to count traffic patterns and speeds of vehicles - it would be the municipality in charge of putting the wires down and collecting the data
2007-01-09 06:11:57
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answer #5
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answered by an_articulate_soul 4
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The city lays them as a way to research how much a road is used for trafiic lights and stop signs and stuff like that.
2007-01-09 06:10:54
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answer #6
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answered by Anonymous
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They are set by the DOT (Department of Transportation) to monitor traffic patterns. One use of them is to gather data for determining whether to install a traffic light or stop sign(s).
2007-01-09 06:10:59
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answer #7
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answered by kja63 7
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usually the state, county, or city highway or roadway department lays them to moniter traffic on the roads. they use this to determine which roads they will repair or replace first. depending on how bad the road already is, how often it gets used, how fast people go on it, and how much longer it will hold up at that rate of wear at that rate of speed.
2007-01-09 06:11:39
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answer #8
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answered by Anonymous
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On hiways like 101 you will see these wire installed and cameras too. You can see traffic on the internet , which gives you speed and traffic condition, like accidents and other reported conditions.
2007-01-09 07:19:52
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answer #9
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answered by Skip 3
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Those are IED's laid down by insurgents. Don't run over them!
2007-01-09 06:12:30
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answer #10
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answered by Anonymous
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