"An Empirical Analysis of Fatality Rates for Large Truck–involved Crash" by Mouyid B. Islam and Salvador Hernandez
 

An Empirical Analysis of Fatality Rates for Large Truck–involved Crashes on Interstate Highways

Document Type

Conference Proceeding

Publication Date

9-2011

Keywords

large trucks, freight transportation, vehicle-mile travelled, ton-mileage, random parameters tobit model

Abstract

Few studies have analyzed the impacts of freight movements (large truck) on crash rates. This study explores a novel application of a method to large truck movements, namely the random parameters tobit regression model, by examining crash rates (instead of frequencies) in truckmiles traveled and ton-miles of freight in the United States (US) as continuous censored variables. Using a nationwide crash database, the empirical results illustrate that the random-parameters tobit regression model provides an increase understanding of the factors determining large truck crash rates.

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Citation / Publisher Attribution

Presented at the 3rd International Conference on Road Safety and Simulation on September, 2011 in Indianapolis, IN.

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