Publications

• Forensic Biomechanics - the science f injury causation
• Biomechanical Evaluation of Motorcycle Helmets: Protection against Head and Brain Injuries
• Biomechanics of Solo Motorcycle Accidents
• Crash-Related Motorcycle Helmet Retention System Failures

Biomechanics, Human factors & Crash reconstruction

Specialties & Experience of this Expert Witness

Additional Information

John Lloyd, PhD, CPE, ACTAR is triple board-certified and a distinguished authority in motorcycle accident reconstruction, injury biomechanics and human factors, with 30+ years of testifying experience. As a motorcyclist with over 40 years of riding experience and advanced training, his in-depth understanding of the dynamics involved in motorcycle crashes distinguishes him as a true specialist in the field. Dr. Lloyd has been qualified to provide biomechanical analyses of various incidents, including: . Motorcycle Accident Reconstruction - Motorcycle riding . Injury Biomechanics . Human Factors . Motorcycle handling and operation . Motorcycle inspection and testing . Motorcycle helmets . Biomechanics of Head and Brain Injury . Football and sports helmets . Automobile accidents . Truck accidents Dr. Lloyd earned a Ph.D. in Ergonomics (Human Factors Engineering) with a specialization in biomechanics from Loughborough University in England. He has been board certified through the Board of Certification in Professional Ergonomics since 1995 and is also an ACTAR Accredited Traffic Accident Reconstructionist, with 11 specialty certifications in motor vehicle accident and motorcycle reconstruction, as well as board-certified in Forensic Engineering Sciences through IBFES. John served as a senior researcher in biomechanics and the Director of the Biomechanics and Traumatic Brain Injury Research laboratories at the VA Research Center of Excellence in Tampa, Florida for 20 years. Concurrently, he held a courtesy appointment as Assistant Professor in the University of South Florida College of Engineering from 2002-2022. Dr. Lloyd’s professional work has been published in six book chapters and 34 scientific articles in peer-reviewed journals, as well as presented at more than 100 national and international conferences. His expertise in biomechanics, human factors, and accident reconstruction has been recognized and admitted by civil and criminal courts throughout the United States and Great Britain, in which he has provided testimony on more than 200 occasions.