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NTL Classification:NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-ENERGY AND ENVIRONMENT-ENERGY AND ENVIRONMENT;
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Abstract:This station was required to have air temperature, relative humidity, wind speed and direction, and
pavement temperature sensors of similar quality to the traditional RWIS sensors, have an integrated solar
powered battery system, and be trailer‐mounted for ease of transport.
The station was tested by the Iowa DOT for basic reliability and sensor performance for a month and a
half in Ames, Iowa before being moved to near Osceola, Iowa in early February 2010 for further field
testing and evaluation. DOT field maintenance staff was able to successfully set up the station with
minimal instruction and found the station to be relatively intuitive in its installation. Air temperature,
wind speed, and wind direction observations from the station were compared to a nearby RWIS station
and had good agreement. Pavement temperature readings were compared to sites within 40 miles of
the station, and the readings correlated. The station has had good reliability.
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