FINDINGS

Performance Measures	RWIS Benefits
Productivity	More efficient response strategies (right resources, in right place, at right time) Reduced maintenance costs (labor, equipment and materials) Assisted with crew scheduling Facilitated data sharing
Other / Indirect	Reduced infrastructure damage (roads, bridges, guardrail, etc.) Assisted in planning of operations other than winter maintenance (e.g., paving) Assisted in avalanche risk assessment

Also noted were anti-icing disadvantages, which can be avoided with proper use of information from RWIS. Liquid anti-icing chemical usage in windy conditions can cause blowing snow to adhere to pavements. Pretreating roads with liquid chemicals may cause slippery conditions or lead to surface freezing if pavement temperatures fall below specific thresholds. Pretreated areas may necessitate subsequent treatment with solid materials.

The report concluded that anti-icing is an effective winter maintenance strategy that can improve level of service and reduce maintenance, however, anti-icing techniques should be carefully planned and executed based upon reliable, accurate data from a RWIS. Appropriate training of maintenance personnel (from decision makers to plow operators) and effective public information campaigns were also noted as key to the success of an anti-icing program.