Conspicuity Expert Witnesses

Tucson, Arizona

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

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

Columbus, 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 retained as an expert in more than 40 states (+ Puerto Rico). 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 Professional Ergonomi...

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 a 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 to the ana...