John Leffler, P.E.
John Leffler, P.E.
The Lead Engineer of Forcon’s Atlanta office, John is a licensed engineer in 10 states and is board certified in forensic engineering. John has investigated over 230 pedestrian falls including 130+ slip-and-fall cases, and he is an experienced testifying expert. John is Vice-Chair of the ASTM F13 pedestrian safety standards committee, and he is Technical Contact for 2 current and 2 upcoming standards in this committee. John has been closely involved in the development of most recent US standards for pedestrian safety – working to advance the good standards and counter the marginal ones. He is also the lead engineer for a manufacturer of research-proven walkway friction testers (tribometers). John is a published author in the area of bathing surface friction and tribometer testing and has 5 years as the technical editor of an engineering journal. Given this unique experience, he has unprecedented knowledge of the strong and weak points of slip risk analysis methods in use by US experts.
The Lead Engineer of Forcon’s Atlanta office, John is a licensed engineer in 10 states and is board certified in forensic engineering. John has investigated over 230 pedestrian falls including 130+ slip-and-fall cases, and he is an experienced testifying expert. John is Vice-Chair of the ASTM F13 pedestrian safety standards committee, and he is Technical Contact for 2 current and 2 upcoming standards in this committee. John has been closely involved in the development of most recent US standards for pedestrian safety – working to advance the good standards and counter the marginal ones. He is also the lead engineer for a manufacturer of research-proven walkway friction testers (tribometers). John is a published author in the area of bathing surface friction and tribometer testing and has 5 years as the technical editor of an engineering journal. Given this unique experience, he has unprecedented knowledge of the strong and weak points of slip risk analysis methods in use by US experts.