Usability Expert Witnesses

Shelton, Connecticut

Human Factors, Ergonomics - usability, accessibility, ADA, assistive technology, wheelchairs, mobility devices, augmented reality, virtual reality, simulation training, human-computer interaction, medical devices, patient safety, electronic health records, instructions, evacuation, human performance, cognitive workload, disability, aging in place

Michael Boyce, PhD, is a human factors expert specializing in usability, accessibility, and assistive technology. He is Principal of Boyce Human Performance, LLC, and has spent 12+ years applying human factors methods in healthcare and defense settings. His expertise covers usability evaluation (formative and summative) of medical and consumer systems; task analysis and use-related risk analysis; accessibility, ADA, and Section 508; assistive technology and mobility devices, including wheelchairs; design of instructions for emergency evacuation of adults with disabilities (published in Applied Ergonomics); augmented and virtual reality; simulation-based training; and human performance measurement, including wearable physiological data (heart rate variability, electrodermal activity). Dr. Boyce led human factors research programs for the U.S. Army on simulation-based training, human-machine interaction, and augmented reality (Best S&T Program award, 2021). His healthcare work inclu...

Gibsonia, Pennsylvania

Transportation, Industrial Design - wheelchair transportation, human factors, public transit, railcar boarding, accessible air travel, wheelchair securement, wheelchair restraint, seatbelt, crash safety, ergonomics, accessibility, paratransit, wheelchair lift, medical device, ramp, school bus, walker safety, warnings, usability, ADA

Dr. Linda van Roosmalen brings over 25 years of experience in wheelchair transportation safety as a designer and researcher at the University of Pittsburgh. She is a key member of a select group of experts dedicated to researching Wheelchair Transportation Safety. Over the past two decades, Dr. van Roosmalen has been retained by both plaintiff and defendant councils, providing her expertise in various cases, including: • Wheelchair transport safety on school buses, public buses, paratransit, non-emergency transport, private vehicles, rail systems, and airplanes. • Lift and ramp access. • Securement of wheelchairs and scooters, along with associated labeling. • Seat belt restraints for wheelchair-seated occupants and related labeling. • Accessibility for wheelchair users in various environments, such as sidewalks, crosswalks, bathrooms, amusement parks, and public vehicles. With a strong background in Industrial Design Engineering and a decade of industry experience, Dr. van Roosmal...