Application of finite mixture models for vehicle crash data analysis
نویسندگان
چکیده
منابع مشابه
Application of finite mixture models for vehicle crash data analysis.
Developing sound or reliable statistical models for analyzing motor vehicle crashes is very important in highway safety studies. However, a significant difficulty associated with the model development is related to the fact that crash data often exhibit over-dispersion. Sources of dispersion can be varied and are usually unknown to the transportation analysts. These sources could potentially af...
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Recently, a finite mixture of negative binomial (NB) regression models has been proposed to address the unobserved heterogeneity problem in vehicle crash data. This approach can provide useful information about features of the population under study. For a standard finite mixture of regression models, previous studies have used a fixed weight parameter that is applied to the entire dataset. How...
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ژورنال
عنوان ژورنال: Accident Analysis & Prevention
سال: 2009
ISSN: 0001-4575
DOI: 10.1016/j.aap.2009.03.007