Whats the deal with Wires On the Roads??

[Singel]

I'm sure you've noticed them, I've driven over them in several places. Two black wires about 2 meters apart.

I'd assume they are counting statistics for cars on certain roads...or are they measuring speeds or something?

[gpomp]

http://forums.beyond.ca/showthread.php?s=&threadid=22945

[Singel]

thanks...CABLES is the word i was lookin for, wires just didnt sound right