Analysis of Severe Injury Accident Rates on Interstate Highways Using a Random Parameter Tobit Model

In this study, a random parameter Tobit regression model approach was used to account for the distinct censoring problem and unobserved heterogeneity in accident data. We used accident rate data (continuous data) instead of accident frequency data (discrete count data) to address the zero cell probl...

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Bibliographic Details
Main Authors: Minho Park, Dongmin Lee
Format: Article
Language:English
Published: Hindawi Limited 2017-01-01
Series:Mathematical Problems in Engineering
Online Access:http://dx.doi.org/10.1155/2017/7273630