Factors Influencing Pavement Friction during Snowstorms
Publication: Journal of Cold Regions Engineering
Volume 37, Issue 3
Abstract
Operating an effective winter road maintenance program is a necessity for cities that face severe winter seasons. Snowstorms leave roads in a slippery surface condition that disrupts traffic flows and compromises drivers’ safety. Decision-makers use a variety of tools to control snow and ice on the roads, which include applying anti-icing chemicals before snowstorms, applying deicing substances on fresh snow, and clearing snow off the roads using snowplows. However, the influence of these tools on improving the overall road surface conditions has not been investigated. In this study, a location-specific and event-based framework was utilized to understand the impact of the different weather variables as well as maintenance operations on the variability of the pavement friction coefficients during snowstorms in urban environments. Using multilinear regression and ordinary least squares, friction coefficient models were calibrated. The final model was found to be a good fit for the data (R2 = 0.723). The model showed that the total precipitation during snowstorms, extremely low temperatures, and the potential for black ice formation worsen pavement friction significantly. On the other hand, plowing operations, the application of anti-icing chemicals before snowstorms, and frequent deicing operations all have a statistically significant impact on improving pavement friction. The model presented in this paper can be used to predict pavement friction on urban arterial and collector roads during snowstorms of different magnitudes, which could help the authorities in predicting the road surface conditions during forecasted snowstorms and deciding on the best course of action under these conditions.
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Acknowledgments
The authors would like to thank the City of Edmonton for providing the data used in this study. 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 policies of the City of Edmonton. Acknowledgments are also extended to the NSERC Alliance program for the financial support.
Study conception and design: Karim El-Basyouny, Tae J. Kwon, and Ahmed Abohassan; data collection: Ahmed Abohassan; analysis and interpretation of results: Ahmed Abohassan, Karim El-Basyouny, and Tae J. Kwon; draft manuscript preparation: Ahmed Abohassan, Karim El-Basyouny, and Tae J. Kwon. All authors reviewed the results and approved the final version of the manuscript.
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Information & Authors
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Published In
Journal of Cold Regions Engineering
Volume 37 • Issue 3 • September 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Mar 10, 2022
Accepted: Dec 10, 2022
Published online: Apr 18, 2023
Published in print: Sep 1, 2023
Discussion open until: Sep 18, 2023
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