Development of Accident Frequency Models with Random Parameters on Interstate Roadway Segments with and without Lighting Systems
Joint Authors
Source
Journal of Advanced Transportation
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-21
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This study explored factors affecting traffic accidents in roadway segments with and without lighting systems using a random parameter negative binomial model.
This study sought to make up for a shortcoming of the fixed parameter model that constrained the estimated parameters to be fixed across observations, by applying random parameters that can take into account unobserved heterogeneity.
Three variables had a random parameter among nine significant variables in segments with lighting systems, while seven of the eleven significant variables in a segment without a lighting system had random parameters.
The different influence of interstate highway geometrics on vehicle crashes with and without lighting systems found through this study considering unobserved heterogeneity may hopefully help reduce accident frequencies and consider installation of lighting systems on interstate highways in the future.
American Psychological Association (APA)
Park, Minho& Lee, Dongmin. 2017. Development of Accident Frequency Models with Random Parameters on Interstate Roadway Segments with and without Lighting Systems. Journal of Advanced Transportation،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1170719
Modern Language Association (MLA)
Park, Minho& Lee, Dongmin. Development of Accident Frequency Models with Random Parameters on Interstate Roadway Segments with and without Lighting Systems. Journal of Advanced Transportation No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1170719
American Medical Association (AMA)
Park, Minho& Lee, Dongmin. Development of Accident Frequency Models with Random Parameters on Interstate Roadway Segments with and without Lighting Systems. Journal of Advanced Transportation. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1170719
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1170719