Road Weather Management Program
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Best Practices for Road Weather Management Version 2.0

Best Practices > Publications > Publication Titles

Title:

Performance of a Road Surface Condition Sensor

Abstract:

A new feature has been added to a commercial surface condition sensor to enhance the measurement of water layer thickness and salt concentration. Laboratory and field test results of the new sensors are presented. An accuracy of 0.1 mm up to 1.0 mm is reachable for water layer thickness in laboratory measurements and about one degree Celcius for salt concentration when expressed in depression of freezing point for values less than 10 degrees Celcius. The performance suggests increased reliability and justifies applying the sensor within certain trafic control applications such as variable message signs and automatic weather controlled speed limit systems.

Source(s):

10th Standing International Road WEather Conference (SIRWEC); Vaisala Oyj (Finland)

http://www.sirwec.org/Papers/davos/21.pdf

Date: 2000

Author:

Haavisto, Haavasoja, Turunen, Nylander

Keywords:


Anti-icing/deicing chemicals

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