Analysis on crash reduction factors for road segment safety

Jutaek Oh and Dongjoo Park

International Journal of Urban Sciences, 2014, vol. 18, issue 3, 396-403

Abstract: The CRF (crash reduction factor), which has credibility that can quantitatively explain effects on traffic accidents in the field of traffic safety, is an important area which can evaluate the safety of roads. In this research, the influence on traffic safety using accident data was investigated, focusing on road factors and surrounding environmental factors from road engineers' point of view. In this study, the predictive levels of CRFs, which were used to evaluate the safety of roads by quantitatively expressing effects on traffic accidents, were developed. Accident models were developed by using data from roadways. It was shown that rather than Poisson or negative binomial, zero-inflated Poisson was more appropriate when the frequency in which 0 (zero) case occurs is high. It is also shown that the horizontal curve and radius, whether a concave section exists, the number of lighting systems, whether level terrain or mountainous terrain exists, and the number of crosswalks have influence on accident in certain sections of road.

Date: 2014
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://hdl.handle.net/10.1080/12265934.2014.955124 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:taf:rjusxx:v:18:y:2014:i:3:p:396-403

Ordering information: This journal article can be ordered from
http://www.tandfonline.com/pricing/journal/rjus20

DOI: 10.1080/12265934.2014.955124

Access Statistics for this article

International Journal of Urban Sciences is currently edited by Dongjoo Park and Mack Joong Choi

More articles in International Journal of Urban Sciences from Taylor & Francis Journals
Bibliographic data for series maintained by Chris Longhurst ().