Chapter
Aug 30, 2023
Research on the Influencing Factors of Traffic Crash Severity during the Initial Period of COVID-19 and COVID-19 Pandemic Based on CatBoost and SHAP Algorithm: A Case Study in Texas
Publication: CICTP 2023
ABSTRACT
After the outbreak of COVID-19, traffic patterns and traffic composition have significantly changed. This paper explores the leading causes of traffic crashes and the impact of COVID-19 on traffic crashes. In this paper, the CatBoost algorithm is used to build a classification model of the causes of traffic crashes, and the accuracy of the model is tested by confusion matrix, f1-score, accuracy, recall, and precision. The influence degree of crash characteristics of the model that has passed the accuracy test is ranked by the importance degree using the SHAP algorithm. The different causes of traffic crashes during the initial stage and the pandemic stage are analyzed. Through the analysis, it is found that the speed limit, COVID-19, and the percentage of trucks in the average daily traffic volume significantly impact the severity of the crash, and the factor of COVID-19 also has a particular interaction with other crash characteristics.
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Information
Published In
CICTP 2023
Pages: 1006 - 1016
History
Published online: Aug 30, 2023
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ASCE Technical Topics:
- Algorithms
- Business management
- Case studies
- Engineering fundamentals
- Epidemic and pandemic
- Infrastructure
- Mathematical functions
- Mathematics
- Matrix (mathematics)
- Methodology (by type)
- Model accuracy
- Models (by type)
- Practice and Profession
- Public administration
- Public health and safety
- Research methods (by type)
- Traffic accidents
- Traffic analysis
- Traffic engineering
- Traffic management
- Traffic models
- Transportation engineering
Authors
Affiliations
1School of Transportation, Southeast Univ., Jiangning District, Nanjing, China. Email: [email protected]
2School of Transportation, Southeast Univ., Jiangning District, Nanjing, China. Email: [email protected]
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.