Pedestrians Expert Witnesses

San Francisco, California

Human Factors, Automotive - Pedestrians, Motorcycles, Distraction, Human Error, Multitasking, Training, Warnings, User Interface, Procedures, Fatigue, Aviation

Dr. Steve Casner is a former career NASA human factors psychologist. Steve draws on a wide body of scientific research to help characterize the understandings, perceptions, and abilities of a reasonably prudent person. Steve is able to help identify the contributions of persons, places, circumstances, and things in a variety of accident situations. Steve is an experienced driver, motorcyclist, bicyclist, and airplane and helicopter pilot and flight instructor. Steve’s first book entitled Careful was published by Penguin Random House in 2017 and reviewed in the Wall Street Journal, The New Yorker, and many others. Steve is effective at explaining scientific concepts to lay audiences in simple and relatable terms.

Rancho Santa Margarita, California

Accident Reconstruction, Police Practices & Procedures - Cars, SUV, light trucks, pedestrians, motorcycles, bicycles, scooters, Bosch CDR EDR Tool, black box, Tesla, Hyundai, Kia, qualified immunity, Code 3 driving, emergency vehicle operations, police pursuit driving, police practices & procedures, DUI FSTs, DUI arrests, TV and media consulting

Provides forensic analysis and litigation support to attorneys, insurance companies and municipalities in the field of accident reconstruction. Has qualified as a court recognized expert in traffic accident reconstruction for jury trials in Orange, Los Angeles and Riverside Counties. Has performed work in many other jurisdiction including Rimini, Italy. Has been practicing accident reconstruction since 1999 and collision investigation since 1989. Has worked privately for criminal prosecution & defense as well as civil plaintiff & defense. Also teaches intro to criminal law, traffic enforcement, DUI investigations, field sobriety tests & arrests at a Southern California based police academy. Retired after 30 years of service from the Irvine (CA) Police Department in November of 2019 where he was assigned to the Field Operations Division as a Detective responsible for traffic-related cases. Worked as the “Team Leader” for the Irvine Police Department’s M.A.I.T. (Major Accident...

Sacramento, California

Accident Reconstruction, Engineering - Mechanical Engineering, Auto Accidents, Accident Biomechanics, EDR download, analysis, including TESLA, Work Place Accidents, Heavy Vehicles, Motorcycles, Pedestrians, Bicycles, Failure Analysis, Computer Models, Simulations, Finite Element Modeling (FEA), Human Factors, Vehicle Dynamics and Design

QUALIFICATIONS; Professor of Mechanical Engineering at the California State University in Sacramento, CA with 39+ yrs. experience. Professional Registered Mechanical Engineer (PE License, CA). An expert in accident reconstruction using computer simulations of accidents involving vehicles, trucks, heavy vehicles, motorcycles, biomechanics, pedestrians, bicycles, occupational, workplace, failure analysis impact forces, industrial accidents. EDR (Event Data Recorder) analysis including TESLA vehicles, patents. EXPERT WITNESS EXPERIENCE: Written reports, depositions & trial experience. SPECIALIZED TRAINING; Vehicle Dynamics and Design, Vehicle Safety & Crash Reconstruction, Accident Biomechanics, Finite Element Modeling in Computer Aided Design, Advanced Mechanical Design and Failure Analysis (CSUS); Motorcycle Accident reconstruction, (Northwestern University); EDR Certification, Tech 1, Tech II, EDR Analysis Certification (Collision Safety Institute); Applying Automotive EDR Da...

Dexter, Michigan

Engineering, Accident Reconstruction - Highway Construction Zones, Hydroplaning Crashes, Crash Forensics, Roadway Design, Highway Clear Zones, Road Maintenance Defects, Traffic Safety, Traffic Controls, Pavement Markings, Guardrails, Pedestrians, Bicycles

Over 49 years experience in highway safety research, highway design, roadway maintenance defects, traffic safety, traffic accident reconstruction, and crash data analytics. Expert in over 300 lawsuits in 28 states since 1996 including hydroplane and wet weather crashes, construction zone and intersection collisions.