What are Temperature Data Probes?
Measurement Research Corporation (MRC) manufactures
Temperature Data Probes (TDP). Temperature readings are taken at
several points along a 72 inch vertical probe that is located just
under the road pavement. The probe is made up of 16 thermistors
encased in an epoxy. Temperatures are recorded at the pavement
surface, just under the pavement, every 3 inches for the first
foot, and every 6 inches for the next five feet.
What are the Temperature Data Probes
The Alaska Department of Transportation &
Public Facilities - Highway Data Section collects temperature data
and traffic volume, class, and weight data at 34 locations around
the state. Temperature recordings are taken hourly. The data is
used for road design, setting weight restriction on roads, and
research. Weight restrictions become necessary in the spring and
fall when the ground is thawing and freezing. A layer of water
collects between the pavement and the frozen ground beneath it,
causing the roadbed to become less stable.