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Aug 30, 2023
The Interactive Mechanism and Coordinative Pre-Alarming Method of Traffic Congestion and Crashes Based on Turbulence Theory
Authors: Yuefeng Chen, Ph.D. [email protected], Xiaodan Zhang, Ph.D. [email protected], Yongsheng Chen, Ph.D. [email protected], and Xueliang Jiang [email protected]Author Affiliations
Publication: CICTP 2023
ABSTRACT
This paper employs the micro dynamic traffic flow and matches crash data of freeways within urban clusters as samples and introduces the turbulence theory into traffic field research. Firstly, the spatial and temporal trajectories of traffic congestion and crashes are described by means of data visualization methods. Secondly, the network model is applied to explore the spatiotemporal correlation and interactive trend between the congestion and crashes. Then, the Decision Tree and Random Forest classifiers were exploited to conduct the joint causation inference of traffic congestion and crashes, and to develop the correlation model between the causal factors. Finally, the coordinative inference and pre-alarm models of traffic congestion and crashes of urban cluster freeway were established. The maximum accuracy of the inferential models reached 86%, and the minimum error of the coordinative risk prediction models of traffic congestion and crashes was as low as 0.75, matching the requirements of engineering practices.
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Published online: Aug 30, 2023
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ASCE Technical Topics:
- Engineering fundamentals
- Errors (statistics)
- Fluid mechanics
- Highway and road management
- Highway transportation
- Highways and roads
- Hydrologic engineering
- Infrastructure
- Mathematics
- Model accuracy
- Models (by type)
- Statistics
- Traffic accidents
- Traffic congestion
- Traffic engineering
- Traffic flow
- Traffic management
- Traffic models
- Transportation engineering
- Turbulence
- Water and water resources
Authors
Affiliations
1Senior Engineer, Fujian Expressway Group Co. Ltd., Fuzhou, Fujian, China. Email: [email protected]
2Associate Research Fellow, Research Institute of Highway, Ministry of Transport, Beijing, China. Email: [email protected]
3Research Fellow, Research Institute of Highway, Ministry of Transport, Beijing, China. Email: [email protected]
4Engineer, Fujian Expressway Group Co. Ltd., Fuzhou, Fujian, China. Email: [email protected]
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