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

Title:

An Analysis of the Performance of the Safelane? Overlay during Winter 2005-06

Abstract:

Prior to the 2005-06 winter season, a pavement overlay product, Safelane (TM) was installed at eight locations around the United States. In 2003, the overlay had been installed at one single location for lengthier testing. The overlay uses a special aggregate that acts, together with an adhesive, in a sponge-like manner such that when an anti-icing liquid is applied to the surface, it is retained for a significant portion of time (typically, many days) and remains effective as an anti-icing chemical during that time. From a winter maintenance perspective, the purpose of the testing during the 2005-06 winter was twofold. The first goal was to determine the extent to which the overlay would extend anti-icing chemical effectiveness. In some of the installations, this goal was further refined to indicate a desire for reduction of accidents, a normal beneficial outcome of successful anti-icing activities. A second goal was to determine whether there were any unforeseen problems arising with the use of the product. The different locations allowed the product to be evaluated under a number of different conditions, including not only bridges, but also of and off ramps.

Source(s):

Asset Insight Technologies, Prepared for Cargill

http://www.cargillsafelane.com/documents/Nixon%20Cargill%20Safelane%20report1.pdf

Date: 2006

Author:

Nixon

Keywords:


Bridge
Winter maintenance
Crashes
Safety

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