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Dec 14, 2021
A Zero-Inflated Negative Binomial Crash Prediction Model for Freeway Bridge Sections
Authors: Jianjun Song [email protected], Bingshi Huang [email protected], Yong Wang [email protected], Chao Wu [email protected], Xiaofang Zou [email protected], Junjie Zhang [email protected], and Jia Li [email protected]Author Affiliations
Publication: CICTP 2021
ABSTRACT
The frequent occurrence of crashes on freeway bridge sections has caused widespread concern. This paper takes the freeway bridge section as research unit and uses the homogeneity method to divide the section units of the E’dong Yangtze River Highway Bridge. Monthly traffic crash, traffic flow, and road geometric data in 2018 were used. A zero-inflated negative binomial (ZINB) regression model was developed to explore traffic safety influencing factors for freeway bridges. AIC criterion and BIC criterion were selected for the goodness of fit test. Relative error (Re), cumulative residual (CSR) and mean standard absolute residual (MSAD) were used for the accuracy test. The results showed that the ZINB model can accurately predict the number of freeway bridge crashes. This paper provides theoretical support and reference for improving the safety level of the freeway bridge operation.
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Published online: Dec 14, 2021
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1Hubei Edong Yangtze River Highway Bridge Co., Ltd., Huangshi, Hubei, China. Email: [email protected]
2Hubei Edong Yangtze River Highway Bridge Co., Ltd., Huangshi, Hubei, China. Email: [email protected]
3Hubei Edong Yangtze River Highway Bridge Co., Ltd., Huangshi, Hubei, China. Email: [email protected]
4Hubei Edong Yangtze River Highway Bridge Co., Ltd., Huangshi, Hubei, China. Email: [email protected]
5China Merchants New Intelligence Technology Co., Ltd., Beijing, China. Email: [email protected]
6Beijing Key Laboratory of Traffic Engineering, Beijing Univ. of Technology, Beijing, China. Email: [email protected]
7Beijing Key Laboratory of Traffic Engineering, Beijing Univ. of Technology, Beijing, China. Email: [email protected]
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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.