Turner-Fairbank Highway Research Center

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Factors Influencing Injury Severity in Alcohol-Related Crashes: A Neural Network Approach Using HSIS Crash Data

Product Type

Journal Article


Snehanshu Banerjee and Nashid Khadem



Full citation

Banerjee, S., & Khadem, N. K. (2019). Factors Influencing Injury Severity in Alcohol-Related Crashes: A Neural Network Approach Using HSIS Crash Data. ITE Journal, 89(3), 42–49.


This study applies artificial neural networks to examine North Carolina motor vehicle crash data with the aim of identifying the factors influencing crash injury severity in alcohol-related crashes. A 3-Class neural network model and a binary (injury and non-injury) neural network model were developed using 49 variables with 63.58% and 68.22% validation accuracies respectively. Overturning was found to be the topmost factor influencing fatal and severe injuries in both the models while wearing a lap belt and deployment of airbags were found to be important factors contributing to a non-injury. Interestingly, the results suggest that driving a passenger car while intoxicated possibly leads to less severe injuries than driving a SUV under the same conditions. Driving in a residential area was found to be an important factor in a non-injury crash compared to driving in a commercial area. The accuracy of the 3-Class and binary models was improved using multiple neurons, and the optimum validation accuracies of 65.33% and 69.65% were obtained with the addition of six neurons in both the models

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ITE Journal

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HSIS Summaries

HSIS Summary Reports are two to eight pages in length and include a brief description of the issue addressed, data used, methodology applied, significant results, and practical implications.

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Research Reports

A variety of research studies have been performed using data from HSIS. Many of the final reports prepared are now available electronically.

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Technical Summaries

Research reports are often summarized in executive summaries, technical briefs, or other abbreviated formats. Included here are those road safety summaries that involved research using HSIS data.

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Safety Analysis Tools

In addition to conducting research, HSIS resources are also used to develop products that can be used by practitioners in the analysis of safety problems.

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Other Projects

HSIS data are sometimes used in research studies that result in other types of finished products, such as dissertations, theses, and conference proceedings.

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