Spatial Influence Analysis of Traffic Safety in Diverging Areas between Freeway Segments and Off Ramps
Joint Authors
Yan, Xuedong
Zhang, Cuiping
An, Meiwu
Zhao, Hui
Source
Discrete Dynamics in Nature and Society
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-12-10
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
There tend to be more crashes occurring in freeway diverging segments due to increasing traffic conflicts between diverging vehicles and nondiverging vehicles.
The diverging segments have a safety impact on the precedent basic segments and the following off ramps.
It is always a challenge to accurately define the safety influential area of freeway diverging segments.
In previous studies, fixed buffer in size is pregiven for crash frequency analysis in diverging segments, which lacks theoretical and practical support.
In this study, the safety influential area was investigated from the statistical point of view.
Data from a geocoded GIS crash database for Colorado Springs metropolitan area was used; the statistically significant factors associated with crash frequency were examined for the spatial influence of freeway diverging segments.
Also, the generalized linear models with negative binomial link function were applied to predict the crash frequency for freeway diverging segments and off ramps based on the influential area.
The results may give some insights into the causation of crashes on diverging segments and off-ramp intersections.
American Psychological Association (APA)
Zhang, Cuiping& Yan, Xuedong& An, Meiwu& Zhao, Hui. 2015. Spatial Influence Analysis of Traffic Safety in Diverging Areas between Freeway Segments and Off Ramps. Discrete Dynamics in Nature and Society،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1060480
Modern Language Association (MLA)
Zhang, Cuiping…[et al.]. Spatial Influence Analysis of Traffic Safety in Diverging Areas between Freeway Segments and Off Ramps. Discrete Dynamics in Nature and Society No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1060480
American Medical Association (AMA)
Zhang, Cuiping& Yan, Xuedong& An, Meiwu& Zhao, Hui. Spatial Influence Analysis of Traffic Safety in Diverging Areas between Freeway Segments and Off Ramps. Discrete Dynamics in Nature and Society. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1060480
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1060480