Conspicuity Expert Witnesses

Tucson, Arizona

Optometry, Human Factors - Forensic Visibiity, Malpractice, Human Factors, Conspicuity, HGN, DUI, DWI, Forensic Vision, Optometric Malpractice, Eye disease, Alcohol and HGN, Forensic vision and accident, Discernibility, Medical Optometry, Reaction Time, Perception, Glare, Accident Reconstruction Visibility

Dr. Leslie Weintraub, O.D. Board Certified Medical Optometrist and Forensic Visibility consultation/expert witness services for the plaintiff or defense. • Optometric medical malpractice, over 30 years of clinical experience • Forensic Visibility, dynamic VA, conspicuity and discernibility evaluation for automobile, commercial vehicles, pedestrian, bicycle and train accidents • Accident Reconstruction Visibility • HGN/DUI • Speaker/educator and author in publications involving visibility and automobile highway safety, bicycle and train accident reconstruction and HGN/DUI

Durango, Colorado

Human Factors, Transportation - Distracted Driving, positive guidance, Fatigue, Sleep Deprivation, Visibility, expectancy, Autonomous Vehicles, Driver Assistance Technologies, Perception-Reaction Time, Looming, Drowsy Driving, Conspicuity, Sleep Deprivation and Shift Work, Human Performance and Behavior, Driver Actions, Advanced Driver Assistance Systems

Dr. Grugle is a human factors expert who specializes in cases involving human performance and behavior, particularly in motor vehicle collisions. Her areas of specialization include fatigue, sleep deprivation, and drowsy driving, as well as distracted driving, looming, visibility/conspicuity, and driver actions. Dr. Grugle has conducted hundreds of forensic investigations on cases involving these issues as well as cases involving roadway design (expectancy and positive guidance), and driver assistance technologies (forward collision warning, lane departure warning). Dr. Grugle is a Board-Certified Human Factors Professional (CHFP) with over 20 years of academic, research and industry experience in human factors engineering. She was awarded competitive human factors research grants from the National Science Foundation, the Ohio Department of Transportation, and the Cleveland State University Transportation Center and her research has been published in national and international pee...

Delaware, Ohio

Human Factors, Engineering - Distracted driving, Driving behavior, Reconstruction, Biomechanics, Maritime, Manufacturing, Mining, OSHA, Premises Liability, Products Liability, Safety, Slips, Trips, Falls, Transportation, Warnings, Conspicuity, Cell phones, Texting, Lighting

Dr. Kevin Rider is a human factors expert and owner of Forensic Human Factors, LLC, providing investigations, reports and expert testimony for personal injury cases – plaintiff and defense. His expertise involves investigating how people interact with other people, products and environments in predictable ways, and applying this understanding to effective, efficient and safe products, services and systems. He has been consulted as an expert in 48 states (so far). Dr. Rider’s expertise includes: • MVAs and pedestrian collisions, incl. trucks, trains, buses, motor/bicycles • Illumination, nighttime visibility, and conspicuity • DUI/DWIs, where intoxication was not a proximate cause of crash • Adequacy of product designs and warnings • The design and maintenance of safe civil and occupational environments • Premises liability, and slips, trips and falls • Workplace and construction safety Dr. Rider is a Professional Engineer (PE), a Certified Human Factors Professional (CHFP), and ...

Irmo, South Carolina

Human Factors, Premises Liability - Accident Prevention, Risk Management, Illumination, Conspicuity, Visual Perception, Slip resistance, Playground Safety, Premises Liability, Lighting, Line of Sight, Driver Distraction, Roadway Markings, Environmental Conditions, Slip-Trip- Fall Evaluations, Workplace Injuries, Human Factors, OSHA

Ellen Szubski, Ph.D., is the senior human factors consultant at The Warren Group. She earned a Doctor of Philosophy in Human Factors Psychology and a Master of Science in Applied Psychology from Clemson University. Ellen is also a Certified XL Tribometrist, a Certified Playground Safety Inspector (CPSI), and a Certified Associate Human Factors Professional (AHFP). Ellen worked in the Clemson Visual Perception and Performance Laboratory examining the factors contributing to the conspicuity of pedestrians and bicyclists in challenging road conditions, such as nighttime driving. She did her dissertation on “The Influence of Pedestrian Biological Motion on Time-To-Collision Estimates at Night”. Prior to entering the forensic field, Ellen planned and conducted experiments for a major bicycle manufacturer that improved bicycle conspicuity. She also conducted laser strike perception and performance studies for the Department of Defense. Ellen applies her experience in Human Factors t...