Modeling the Safety Performance of Freeway Horizontal and Crest Vertical Curve Combinations Using Hierarchical Negative Binomial Approaches with Temporal Correlation

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作者信息关键词期刊信息基础信息归属信息摘要

成果类型：

期刊论文

作者：

Wang, Xiaofei;Chen, Jiamin;Li, Xinwei;Zeng, Qiang;Wang, Yinhai

通讯作者：

Zeng, Q

作者机构：

[Zeng, Qiang; Wang, Xiaofei; Chen, Jiamin] South China Univ Technol, Sch Civil Engn & Transportat, Guangzhou, Guangdong, Peoples R China.

[Li, Xinwei] Guangzhou Comprehens Transportat Hub Co Ltd, Guangzhou, Guangdong, Peoples R China.

[Zeng, Qiang] Changsha Univ Sci & Technol, Key Lab Highway Engn, Minist Educ, Changsha, Hunan, Peoples R China.

[Wang, Yinhai] Univ Washington, Dept Civil & Environm Engn, Smart Transportat Applicat & Res Lab, Seattle, WA USA.

通讯机构：

[Zeng, Q ] S

South China Univ Technol, Sch Civil Engn & Transportat, Guangzhou, Guangdong, Peoples R China.

Changsha Univ Sci & Technol, Key Lab Highway Engn, Minist Educ, Changsha, Hunan, Peoples R China.

语种：

英文

关键词：

infrastructure;roadway design;performance effects of geometric design AKD10;curves;safety;safety performance and analysis;Bayesian methods

期刊：

Transportation Research Record

ISSN：

0361-1981

年：

2025

DOI：

10.1177/03611981251324205

基金类别：

Natural Science Foundation of Guangdong Province [2022A1515011974]; Natural Science Foundation of China [72471091]; Foundation of Guangdong Communication Planning & Design Institute Group Co., Ltd. [20221615]; Open Fund of the Key Laboratory of Highway Engineering of Ministry of Education (Changsha University of Science Technology) [kfj230301]; Washington State Department of Transportation; STARlab in University of Washington

机构署名：

本校为通讯机构

院系归属：

交通运输工程学院

摘要：

The safety performance of horizontal and crest vertical curve combinations (also named as crest combinations or crest combined curves) is substantially associated with their geometric design. To evaluate their safety performance accurately, three Bayesian hierarchical negative binomial (NB) models with various structures of temporal correlation (including linear time trend, quadratic time trend, and autoregressive-1) are proposed for building a relationship between crash frequency and the separated and combined geometric design attributes of crest combination on freeways. An 8 year (2011-2018)...

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Modeling the Safety Performance of Freeway Horizontal and Crest Vertical Curve Combinations Using Hierarchical Negative Binomial Approaches with Temporal Correlation

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