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Industry: Email Alert RSS FeedMeet the road monitor.(New Hampshire Department of Transportation uses multiple sensors )
Sensors Magazine, April, 2006 by vL Henkel, Stephanie
New Hampshire's Department of Transportation, in conjunction with Plymouth State University, is about to tackle a particularly thorny problem: unpredictable road surface conditions. The Road Weather Information System (RWIS) consists of multiple sensors and towers that report local conditions to the DOT and other agencies. Let's take a closer look.
Temperature probes buried -47 cm below the roadway surface and hardwired to the surface sensors will help determine frost depth. The surface detectors (Surface Systems Inc., www.ssiweather.com), resembling hockey pucks, will be embedded in the pavement. These will detect and relay specific road conditions such as dry, damp, wet, or snow/ice-covered, and pavement temperature, as well as whether an anti-icing chemical...
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