Further notes on the application of zero-inflated models in highway safety. Academic Article

abstract

• The intent of this note is to succinctly articulate additional points that were not provided in the original paper (Lord et al., 2005) and to help clarify a collective reluctance to adopt zero-inflated (ZI) models for modeling highway safety data. A dialogue on this important issue, just one of many important safety modeling issues, is healthy discourse on the path towards improved safety modeling. This note first provides a summary of prior findings and conclusions of the original paper. It then presents two critical and relevant issues: the maximizing statistical fit fallacy and logic problems with the ZI model in highway safety modeling. Finally, we provide brief conclusions.

authors

• Lord, Dominique

published proceedings

• Accid Anal Prev

altmetric score

• 3

author list (cited authors)

• Lord, D., Washington, S., & Ivan, J. N.

citation count

• 163

complete list of authors

• Lord, Dominique||Washington, Simon||Ivan, John N

publication date

• January 2007

publisher

• Elsevier  Publisher

published in

• Accident Analysis and Prevention  Journal

keywords

• Accidents, Traffic
• Binomial Distribution
• Humans
• Poisson Distribution
• Regression Analysis
• Safety
• Transportation

Digital Object Identifier (DOI)

• 10.1016/j.aap.2006.06.004

start page

• 53

end page

• 57

volume

• 39

issue

• 1

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.aap.2006.06.004