Risk Assessment of Wind-Induced Vehicle Accidents on Long-Span Bridges Using Onsite Wind and Traffic Data
Publication: Journal of Structural Engineering
Volume 148, Issue 10
Abstract
A systematic approach was proposed to assess vehicle accident risk over sea-crossing bridges under strong winds. The annual frequency of an accident was evaluated as a risk index using the information on daily traffic volumes, the ratio of high-sided vehicles, and the long-term distribution of the speed and direction of the wind at the bridge site. The approach considered the effect that deck shapes and road alignments exert on vehicle stability. The risk index was estimated by accounting for the entire road sections of the examined bridge, including approach spans. The proposed method successfully identified the vulnerable positions along the bridge and the vehicle types. The application on a sea-crossing bridge demonstrated the usefulness of the proposed risk-assessment approach in determining a preferable mitigation strategy with less traffic intervention or minimized windscreen installation by quantitative comparisons between risk indices of several possible measures.
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Data Availability Statement
Some or all data, models, or codes that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This research was supported by a Grant (21SCIP-B119963-06) from the Ministry of Land, Infrastructure, and Transport of the Korean Government. The authors are thankful to Principal Engineer Young-Kook Kim, the Bridge Management Team Leader of Busan Infrastructure Corporation, for field-measured wind data and his comments on this study.
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Published In
Journal of Structural Engineering
Volume 148 • Issue 10 • October 2022
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This work is made available under the terms of the Creative Commons Attribution 4.0 International license, https://creativecommons.org/licenses/by/4.0/.
History
Received: Aug 7, 2021
Accepted: May 12, 2022
Published online: Jul 28, 2022
Published in print: Oct 1, 2022
Discussion open until: Dec 28, 2022
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Cited by
- Ho-Kyung Kim, Hyeong-Yun Cheon, Sejin Kim, Probabilistic Assessment of Vehicle Driving Safety under Strong Winds – Cause Investigations on Two Sea-Crossing Bridges, IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation, 10.2749/nanjing.2022.0028, (28-33), (2022).
- Luca Caracoglia, Jamie E. Padgett, Ilaria Venanzi, Risk-Informed and Life-Cycle Analyses of Structures and Infrastructures, Journal of Structural Engineering, 10.1061/(ASCE)ST.1943-541X.0003495, 148, 12, (2022).