Title

A Statistical Assessment of Contemporary Issues in Accident Analysis

Abstract

Identifying factors that affect the frequency and injury severity of accidents is critical to improving road safety. However, determining these factors can be a difficult task since accident likelihoods and their resulting injury severities are influenced by a wide variety of observed and unobserved factors. Over the years many different methodologies have been used to analyze accident data, and each methodology can potentially lead to different results and conclusions. In addition, accident causes could change over time because of many reasons such as new safety implementations, economic changes, and drivers’ behavioral changes. In this seminar, a statistical assessment of temporal instability in the factors determining motorcyclist injury severities, which addresses the changes in the influence of factors determining motorcyclist injury severity outcomes over time is provided. The results show significant temporal instability in motorcyclist-injury severity models, which likely result from changes in motorcycle technology and performance, changes in macroeconomic conditions, changes induced by how riders respond to the changing behavior of other road users (whose behavior may be changing as a result of technology changes in their vehicles, evolving use of personal technologies in their vehicle, such as cell phones, etc.), and the changes in riders’ behavior and skills over time

Presentation

Dr. Alnawmasi's Presentation

Speaker Bio

Nawaf Alnawmasi is an assistant professor of Civil Engineering at the University of Hail. He obtained his undergraduate degree from the University of Hail in 2013, and his MS and doctoral degrees from the University of South Florida in 2020 (under the supervision of Professor Fred Mannering). His research interests are in the application of econometric and statistical methods to the analysis of highway safety and transportation economics and safety. He has published several research papers in the peer-reviewed journals and presented his research work in Transportation Research Board (TRB) 99^th and 102^nd annual meetings.

Speaker Headshot

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