Assessing the Vulnerability of Winter Maintenance Material Storage Facilities
Publication: Journal of Cold Regions Engineering
Volume 31, Issue 2
Abstract
This research examines the vulnerability of the winter maintenance salt supply to depletion and the associated risk costs in Ohio using Ohio Department of Transportation (ODOT)-specific data pertaining to the amount of salt storage, number of trucks, and lane kilometers maintained by each county. These data were combined with the number of snowfall events in each county to determine the failure probability. The results indicated that the probability of exceeding the salt capacity ranged from less than 0.01 to 61%, with an average of 23.1%. Sensitivity and importance analyses were conducted to determine the change in probability of exceedance due to a one-unit change in each parameter and to examine the influence of each random variable in the reliability analysis on the variance of the limit state, respectively. The parameter with the highest importance was the salt applied during light snowfall, while the brine applied has a low importance. Annual risk costs were estimated using the purchase and storage costs of salt and the total cost was then determined to estimate the optimal salt supply for different regions of Ohio based on the amount of snowfall and number of snowfall events.
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Acknowledgments
The authors would like to thank the Ohio Department of Transportation for the use of its equipment and facilities in gathering the data for this study. The research was performed by University of Akron. The contents of this paper reflect the views of the authors, who are responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or polices of ODOT or the Federal Highway Administration.
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Information & Authors
Information
Published In
Journal of Cold Regions Engineering
Volume 31 • Issue 2 • June 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Sep 3, 2015
Accepted: Apr 26, 2016
Published online: Jul 12, 2016
Discussion open until: Dec 12, 2016
Published in print: Jun 1, 2017
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