b) Iowa DOT standard shift forms
c) Iowa DOT Maintenance Vehicle data
i. Material distribution setting
ii. Treatment type
iii. Treatment rate
iv. Plow position
v. Date, time and location
Verification Data Forms
In order to fully estimate the weather and road conditions performed during each event, it
was necessary for Lab and CTRE personnel to fill out data collection forms. The weather
and road condition forms used by CTRE, Iowa DOT and Lab staff were designed to
capture the following information about weather and road conditions:
Treatment performed (if riding in maintenance vehicle)
o Treatment start and stop times
o Chemicals used (NaCl, solids, liquids, etc.)
o Chemical amount (tonnage and/or pounds per lane mile or gallons per lane
o Plowing performed
Estimated road condition per route
o Wet, dry, icy, snowpacked, blowing snow, snow depth, slush, rain,
freezing rain, frost, etc.
o Road temperature (if available)
Weather conditions along route
blowing snow, snow depth, frost, air temperature, wind speed, etc.
Any other pertinent observations such as chemical dispersion rate, condition of
road before and after treatment, precipitation start and stop times.
A digital camera was also used by CTRE and Lab staff to capture images of the road
conditions throughout the life of a storm.
MDSS ENHANCEMENTS FOR 2004