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

Lord, Dominique , Washington, Simon, & Ivan, John (2007) Further notes on the application of zero-inflated models in highway safety. Accident Analysis and Prevention, 39(1), pp. 53-57.

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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.

Impact and interest:

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56 citations in Web of Science®

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ID Code: 38191
Item Type: Journal Article
Keywords: Zero-inflated models, Statistical models, Poisson, Negative binomial, Statistical methods
DOI: 10.1016/j.aap.2006.06.004
ISSN: 0001-4575
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700)
Australian and New Zealand Standard Research Classification > COMMERCE MANAGEMENT TOURISM AND SERVICES (150000) > TRANSPORTATION AND FREIGHT SERVICES (150700)
Australian and New Zealand Standard Research Classification > PSYCHOLOGY AND COGNITIVE SCIENCES (170000) > PSYCHOLOGY (170100)
Divisions: Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Deposited On: 28 Oct 2010 09:56
Last Modified: 01 Mar 2012 00:18

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