Slip Resistance Expert Witnesses

Ann Arbor, Michigan

Human Factors, Premises Liability - Naval Architecture, Marine Engineering, Industrial and Operations Engineering, Product Liability, Slip Resistance, Slip Trip and Fall, Recreational Boat Design, Watercraft Occupant Safety, Towed Watersports Safety, Time and Motion, Work Sampling, Human Vibration & Acceleration Exposure, Sound Measurement and Analysis

Mr. Brian Grieser holds a bachelor’s degree in Naval Architecture and Marine Engineering and a master’s degree in Industrial and Operations Engineering from the University of Michigan. Mr. Grieser has extensive experience in conducting evaluations in a wide range of product, occupational, and premises projects involving litigation as well as proactive consulting. His assessments have included walkway slip resistance; recreational boat design; watercraft occupant safety; towed watersports safety; time and motion studies; work sampling; human vibration and acceleration exposure; sound measurement and analysis; and human movement, climbing, and stability analysis. Mr. Grieser is a member of several professional societies including the Human Factors and Ergonomics Society, ASTM International, the Society of Naval Architects and Marine Engineers, the American Boat and Yacht Council, and USA Water Ski & Wake Sports. Mr. Grieser has authored publications addressing recreational boat de...

St. Louis, Missouri

Safety, Premises Liability - Slip Trip & Fall, Retail Safety, Equipment & Machinery, Human Factors, Slip Resistance, Accident Investigation/Reconstruction, OSHA, Guarding, Failure Analysis, Construction, Industrial & Premises Accidents

Haines, Janson & Associates provides safety and risk management consulting services. Christopher E. Janson, Board Certified Safety Professional (CSP); Certified Hazardous Materials Manager (CHMM); Certified User of the English XL slip resistance measuring device (CXLT). Mr. Janson has held safety management positions with several Fortune 500 companies. He has also worked with a variety of firms as a consultant for the insurance industry. Mr. Janson is a professional member of the American Society of Safety Engineers.

Lancaster, Pennsylvania

Slip Trip & Fall, Industrial Hygiene - Certified Industrial Hygienist, CIH, Workplace Safety, Occupational Safety, Chemical Exposure, Public Health, Trenching, Construction Safety, Rigging, Accident Investigation, Coefficient of Friction, Slip Resistance, Lockout, Electrical Safety, NFPA 70E, Air Quality, Noise, Safety Culture, OSHA, CSP

Over 30 years in Safety & Health. Authorized Trainer and Instructor-Trainer for the OSHA Training Institute Outreach Education Center in Construction (exp) and General Industry. Masters Public Health (MPH) (Hopkins), Masters in Safety Sciences (MS) (IUP) Post-baccalaureate Certificates in Environmental Health & Industrial Hygiene (Johns Hopkins) / Epidemiology & Bio-statistics (Drexel). Certified Safety Professional (CSP) Certified Industrial Hygienist (CIH) Construction Health & Safety Technician (CHST) Emergency Medical Technician - PA (EMT) Associate in Risk Management (ARM) Certified XL Tribometrist (CXLT)(slip-resistance) Frequent Public Speaker on Safety and Health Issues. Creative approaches and perspectives to cases. Defense and Plaintiff work. Organization Participation and Memberships: Lancaster County Industrial Safety Council (officer positions); American Society of Safety Professionals (ASSP); American Industrial Hygiene Association (AHIA): Full Member; Member of t...

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...

Lewisville, Texas

Slip Trip & Fall, Premises Liability - ADA, Building Code, Foundation Movement, International Code Council, Means of Egress, Forensic Engineering, Ground Vibration, Slip Resistance, Stairway, Lighting, Property Damage, Handrail & Guardrail

Founded in February 2017, my practice is focused on investigations of premises liability and property damage matters for my client base that consists of attorneys, insurance carriers, self-insured entities and third-party administrators. The following site conditions are analyzed during investigation of premises liability matters: Egress Width, Stairways, Ramps, Slip Resistance, ADA, Trip Hazards, Curbs, Handrails, Guardrails, Step-downs, Doorways/Thresholds, Floor Mats, Lighting, Assembly, and Glass/Glazing. A typical premises liability investigation will involve initial review of documents & files, examination and detailed measurements of the incident area, testing, photograph documentation, analysis of data, review of applicable building codes and/or architectural standards, consultation with the jurisdiction, forming conclusions, producing an expert witness report, and if needed, providing live testimony at deposition or trial. To date I have testified live at 43 depositions...