traffic: The Truth About Traffic
- 02/25/08 02:27 AM
I've been seeing these things a lot lately. Those black tubes stretched across the various roadways I drive. At first I thought they were some kind of traffic enforcement device and there were cops lurking nearby waiting for suckers like me to fly over them at unlawful speeds. But no, they are actually there to measure traffic counts. As the tires pass over the rubber tubing, the change in air pressure registers on the digital readout. I guess road planners use these readings to strategize traffic flow. I'm sure other folks use them to provide information for commercial real estate purposes, enticing would-be investors … (9 comments)
I've been seeing these things a lot lately. Those black tubes stretched across the various roadways I drive. At first I thought they were some kind of traffic enforcement device and there were cops lurking nearby waiting for suckers like me to fly over them at unlawful speeds. But no, they are actually there to measure traffic counts. As the tires pass over the rubber tubing, the change in air pressure registers on the digital readout.
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