Probability of Roadside Accidents for Curved Sections on Highways
Joint Authors
Pei, Yulong
Cheng, Guozhu
Xu, Liang
Cheng, Rui
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-30
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
To predict the probability of roadside accidents for curved sections on highways, we chose eight risk factors that may contribute to the probability of roadside accidents to conduct simulation tests and collected a total of 12,800 data obtained from the PC-crash software.
The chi-squared automatic interaction detection (CHAID) decision tree technique was employed to identify significant risk factors and explore the influence of different combinations of significant risk factors on roadside accidents according to the generated decision rules, so as to propose specific improved countermeasures as the reference for the revision of the Design Specification for Highway Alignment (JTG D20-2017) of China.
Considering the effects of related interactions among different risk factors on roadside accidents, path analysis was applied to investigate the importance of the significant risk factors.
The results showed that the significant risk factors were in decreasing order of importance, vehicle speed, horizontal curve radius, vehicle type, adhesion coefficient, hard shoulder width, and longitudinal slope.
The first five important factors were chosen as predictors of the probability of roadside accidents in the Bayesian network analysis to establish the probability prediction model of roadside accidents.
Eventually, the thresholds of the various factors for roadside accident blackspot identification were given according to probabilistic prediction results.
American Psychological Association (APA)
Cheng, Guozhu& Cheng, Rui& Pei, Yulong& Xu, Liang. 2020. Probability of Roadside Accidents for Curved Sections on Highways. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1202396
Modern Language Association (MLA)
Cheng, Guozhu…[et al.]. Probability of Roadside Accidents for Curved Sections on Highways. Mathematical Problems in Engineering No. 2020 (2020), pp.1-18.
https://search.emarefa.net/detail/BIM-1202396
American Medical Association (AMA)
Cheng, Guozhu& Cheng, Rui& Pei, Yulong& Xu, Liang. Probability of Roadside Accidents for Curved Sections on Highways. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1202396
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1202396