Accident Prevention Expert Witnesses

Huntington, New York

Safety, Property Management - Playground Safety, Premise Liability, Property Management, Playground Supervision, Slip Trips& Falls, Emergency Action Planning, Life Safety, Accident Prevention, Lighting, Property Inspections, Construction Safety, School Playgrounds, Risk Assessment, ASTM F1487

Mr. Andrew Sampson is a safety‑focused engineering and property management professional with 15 years of experience overseeing construction, operations, and risk management across complex, high‑density environments. His background spans Class A commercial properties, life‑safety systems, playground safety standards, and large‑scale maintenance programs, giving him a unique systems‑based perspective on incident causation and hazard control. In his role managing more than 2 million square feet of Class A office properties in Manhattan, Mr. Sampson has directed multi‑million‑dollar construction projects, supervised multidisciplinary engineering and safety teams, and conducted hundreds of inspections to ensure compliance with OSHA regulations, building codes, and industry best practices. His work includes oversight of life‑safety systems, emergency preparedness, equipment maintenance, and operational risk mitigation for high‑value assets. Before entering the commercial real estate sec...

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...