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Anti-icing
strategies involve applying salt or other chemicals to pavements before
snow and ice bond to the road. The result—roads stay clearer or are easier
to plow if snow begins to accumulate. Traditional deicing strategies, in contrast,
must break this bond, so they require much more effort and considerably more chemicals.
The manual explains all facets of anti-icing, drawing on the experience of the
15 States that participated in FHWA's 2-year test and evaluation of anti-icing
strategies and technologies. After a brief introduction to anti-icing methods
and how they fit into a winter maintenance program, the manual details everything
needed to implement them—equipment, such as salt spreaders and chemical storage
facilities; decision-making tools, such as road weather information systems and
patrols; and personnel management tools, like scheduling and training. The manual
then outlines the steps in an anti-icing strategy, from assessing the situation
before a storm hits to conducting follow-up operations after the storm ends. An
appendix includes a series of charts recommending the actions to take during different
types of winter storms and for different pavement temperatures, traffic levels,
or other conditions. The manual was produced by the U.S. Army Cold Regions Research
and Engineering Laboratory (CRREL) under contract to FHWA. To obtain a copy of
the Manual of Practice for an Effective Anti-Icing Program: A Guide for Highway
Winter Maintenance Personnel (Publication No. FHWA-RD-95-202), contact Federal Highway Administration
R&TProduct Distribution Center, HRTM-03 -
E-mail: report.center@dot.gov.
The report can also be downloaded from FHWA's World Wide Web site
http://www.fhwa.dot.gov/reports/mopeap/eapcov.htm. Two companion videos—What
Is Anti-Icing (Video No. 124) and Anti-Icing for Maintenance Personnel
(Video No. 125)—are also available from the Reports Center. For more information
on SHRP research on snow and ice control, contact Salim
Nassif at FHWA (telephone: 202-366-1557; fax: 202-366-9981; email: salim.nassif@fhwa.dot.gov).
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