Road Condition Sensor
The surface condition of roads is of great concern to Road
Authorities and Road Maintenance people. During the winter
months it is especially important to be informed of the changing
surface conditions to enable road maintenance personnel to take
the proper course of action.
By knowing the road conditions, the use of anti-icing chemicals may be optimized and in many cases reducing maintenance cost. For these
reasons the Aanderaa Road Condition Sensor 3565 has been developed.
The sensor consist of a cylindrically shaped body molded in a
mixture ofpolyurethane and Portland cement. A set of sensing elements consisting of five sets of four graphite electrodes as well as three transparent polycarbonate rods are visible on the upper surface of the sensor.
A 15 meter long fixed cable with a watertight non-corrosive 10-pin plug connects the sensor to the Datalogger 3660 in the Road Weather Station housing.
The sensor measures four important parameters:
- The road temperature
- Wet or dry road surfaces
- The salinity of the surface moisture, from which the freezing point is calculated
- Snow or Not Snow
Additional Resource:
For additional information on a complete Road Weather Information System (RWIS) solution contact
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