TTI Crash Analytics Experts Publish Second Edition of Highway Safety Analytics and Modeling
Crash analytics experts at the Texas A&M Transportation Institute (TTI) have published the second edition of Highway Safety Analytics and Modeling. The updated edition builds on the widely used first edition and serves as a comprehensive resource for transportation engineers, policymakers, researchers, analysts, designers and graduate students working in highway safety.
Authored by Texas A&M University Zachry Department of Civil and Environmental Engineering Professor and TTI-affiliated researcher Dominique Lord, TTI Research Engineer and Crash Analytics Program Manager Srinivas R. Geedipally, and Xiao Qin of the University of Wisconsin–Milwaukee, the textbook provides a comprehensive framework for highway safety analysis. It walks readers through the full decision-making process, from assembling crash data to developing statistical models and interpreting results to inform engineering and policy decisions.
The second edition reflects significant advancements in highway safety research and incorporates feedback from readers and instructors. New and expanded topics include:
- Digital twins as a source of safety data
- Model validation techniques
- Extreme value models
- Temporal instability
- Joint crash frequency and severity modeling
- Sample size considerations
- Quasi-induced exposure methods
- Autonomous vehicle safety estimation
The book addresses the practical realities of working with crash and naturalistic driving data, including challenges such as low sample means, small datasets and repeated measurements. It emphasizes translating analytical findings into effective countermeasures, policies and programs aimed at reducing crash frequency and severity.
Organized into three sections, the 566-page volume features expanded examples and exercises for classroom use, along with online datasets and learning tools. The text complements the Highway Safety Manual published by the American Association of State Highway and Transportation Officials and supports the training of engineers and practitioners applying safety analysis methods in practice.