Details:

Creators:
Guthrie, W. Spencer ; Thomas, Chase D.
Guthrie, W. Spencer ; Thomas, Chase D. Less -
Corporate Creators:
Brigham Young University. Dept. of Civil and Environmental Engineering
Subject/TRT Terms:
[+]
Asphalt Pavements Concrete Pavements Deicing Chemicals Linear Regression Analysis Statistical Analysis Traffic Volume Winter Maintenance
Publication/ Report Number:
UT-14.02
Resource Type:
Tech Report
Geographical Coverage:
Utah
Corporate Publisher:
Utah. Dept. of Transportation
Abstract:
The objectives of this research were to 1) compile winter maintenance data for the Utah Department of

Transportation (UDOT) to directly compare concrete and asphalt pavements with regards to deicer usage and 2)

determine if there is a statistical difference in deicer usage on concrete and asphalt pavements. To this end, three

data sources were consulted for this research: Maintenance Management Quality Assurance (MMQA) database,

UDOT road database, and Google Maps. The final compiled data set prepared for analysis in this research

contained deicer quantities by deicer type, pavement surface areas by pavement material type, traffic, longitude,

latitude, and elevation data. The deicer data evaluated in this analysis represented the total quantities of each deicer

distributed during the 8-year period during which the MMQA database was used by UDOT.

Several multiple linear regression analyses were performed to determine if concrete or asphalt pavements

required different amounts of deicers, including salt, Redmond salt, brine, wetted salt, magnesium chloride, sand,

pre-mix, and wetted pre-mix, during the winter seasons evaluated in this research. From the results of the statistical

analyses, concrete proportion was statistically significant in models for three of the dependent variables, including

brine, wetted salt, and wetted pre-mix. However, neither the full nor the reduced regression model prepared for the

sum of all deicers had concrete proportion as one of the significant variables. The absence of concrete proportion as

an independent variable in these models shows that, on average, after correcting for differences in traffic volume and

pavement area, deicer usage in Utah is not affected by pavement type. Therefore, except in areas where applications

of brine, wetted salt, and wetted pre-mix are common, winter maintenance costs should not be a factor in the

determination of pavement type.


Format:
PDF
Funding:
99087
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:7f46fa9095542d6bccc5be30491c59cbff68a8c5a102f542857ab6361d353000
Download URL:
https://rosap.ntl.bts.gov/view/dot/27864/dot_27864_DS1.pdf
File Type:

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