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

Lord, Dominique, Washington, Simon and Ivan, John N. (2007) Further notes on the application of zero-inflated models in highway safety. Accident Analysis and Prevention, 39 1: 53-57. doi:10.1016/j.aap.2006.06.004


Author Lord, Dominique
Washington, Simon
Ivan, John N.
Title Further notes on the application of zero-inflated models in highway safety
Journal name Accident Analysis and Prevention   Check publisher's open access policy
ISSN 0001-4575
Publication date 2007-01-01
Year available 2006
Sub-type Article (original research)
DOI 10.1016/j.aap.2006.06.004
Open Access Status Not yet assessed
Volume 39
Issue 1
Start page 53
End page 57
Total pages 5
Place of publication Oxford, United Kingdom
Publisher Elsevier
Language eng
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.
Keyword Negative binomial
Poisson
Statistical methods
Statistical models
Zero-inflated models
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Civil Engineering Publications
 
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Created: Wed, 08 Mar 2017, 16:11:38 EST by Jeannette Watson on behalf of Learning and Research Services (UQ Library)