Dr. Shakir Shatnawi, PhD, PE, is a nationally and internationally recognized expert in the Transportation Engineering industry. Shakir has a Ph.D. in Transportation Engineering. He has over 30 years of practical and extensive engineering and transportation expertise covering industry and public agencies including FHWA and the California Department of Transportation (Caltrans). Shakir is currently the president of Shatec Engineering Consultants. He taught highway engineering, traffic engineering and transportation engineering and pavement design at California State University. Dr. Shatnawi served as a principal investigator on multi-million dollar transportation projects. He held various positions at Caltrans including a Senior Transportation Engineer, a Supervising Transportation Engineer and a Division Chief. Dr. Shatnawi's education and experience demonstrates a wealth of engineering knowledge encompassing highway design, traffic engineering, pavement design, geotechnical engineering, materials and construction . As a recipient of many acknowledgements from the government, Dr. Shatnawi has an impeccable reputation within the industry for his significant professional contributions. As an expert orator, he frequently shares his knowledge at major conferences around the world. Dr. Shatnawi provides expert witness services in the following areas:
Quality Forensic Engineering, LLC is a full-service forensic engineering and accident reconstruction firm, providing engineering support to clients in the areas of collision reconstruction, premises liability, and product liability. With over 20 years of experience for each of our senior engineers, we utilize the latest technology for documenting evidence and retrieving data including FARO 3D scanning, aerial drone imaging, and black box downloads. Our forensic engineers are mobile, supporting clients throughout the U.S. Headquartered in Tallahassee, Florida with a satellite office in Jacksonville, Florida, we look forward to serving you.
Dr. Brian Pfeifer, P.E.,
With over 20 years of experience investigating and testifying in cases involving a variety of forensic engineering issues, Dr. Pfeifer is a leading expert in accident reconstruction, roadside safety, maintenance of traffic, and analysis of mechanical systems, and product failures. Dr. Pfeifer has a strong background in the design, development, and implementation of roadside safety hardware including guardrails, bridge rails, and crash cushions. Over 33 patents have been filed worldwide on behalf of Dr. Pfeifer and associated colleagues who invented safer guardrail systems and terminals, vehicle storage systems, shipping container handling systems, and material handling and storage methods. Dr. Pfeifer has published numerous papers to various organizations including the Transportation Research Board and Port Technology International, covering topics ranging from new guardrail systems, energy-absorbing guardrail terminals, and breakaway mechanisms incorporated in traffic signs to material handling technology. Dr. Pfeifer’s expertise has been shared with many organizations such as the Florida Justice Association, Palm Beach County Justice Association, American Bar Association, Defense Research Institute, and Alabama Defense Lawyers Association with presentations he’s made on topics including vehicle collisions, bicycle accidents, roadway constructions zones, and accident reconstruction expert witness utilization. Dr. Pfeifer is a registered Professional Engineer in three states and stays current with learning new technology in the field of forensic engineering. He has refined his skills and knowledge of accident reconstruction and roadside safety by taking dozens of continuing education courses over the span of his career.
Tractor / Trailer Collisions
Black Box Analysis
Product Failure Analysis
Maintenance of Traffic (MOT) evaluation
Restraint System Analysis
Ms. Traci Campbell, P.E., CXLT,
Ms. Campbell is an Industrial engineer with specialties in industrial accident reconstruction, including slip, trip, and fall analysis, human and environment interaction, forklifts, applicable standards and guidelines, and workplace-safety issues. Her expertise also includes vehicular accident reconstruction involving automobiles, trucks, tractor-trailers, and recreational vehicles, as well as, product failure analysis.
Slip / Trip / Fall
Retail Facility Safety
Human and Environment Interaction
ANSI / ASTM / Building Codes
Guarding & Warnings
Forklifts and Construction Equipment
Theme Parks / Recreation Safety and Facilities
Tractor / Trailer Collisions
Airbag and Black Box Analysis
Product Design / Failure Analysis
Mr. Chris Yates, P.E.,
Mr. Chris Yates, P.E., is a Mechanical Engineer with specialties in accident reconstruction, including electronic module downloads for both automobile airbag modules and tractor-trailer electronic control modules. His expertise includes auto accidents, tractor-trailer accidents, bicycle accidents, pedestrian accidents, and other roadway accidents. His expertise also includes seat belts, occupant kinematics, product failure analysis, and other general engineering issues.
Paul Chen is a Consumer Product (Non-Food) Safety, Regulatory and Retail Compliance, Quality Assurance and control, 3rd party lab testing / inspection / auditing, CPSC (Consumer Product Safety Commission), CPSIA (Consumer Product Safety Improvement Act), Federal / State / Local law compliance consultant and expert. He is on-call 24/7 and speaks Chinese fluently.
Background - Mr. Chen has over 17 years of experience in the Consumer Products Industry, most recently for the Product Safety & Compliance division at Walmart Stores, Inc. He was responsible for managing the regulatory compliance testing and auditing programs / policies / procedures / protocols / practices for general merchandise (non-food) items offered for sale in the Walmart, Walmart.com, Sam's Club, samsclub.com, and Puerto Rico formats. This included direct import, domestic, private label, supplier and national brand items in 20+ departments/categories.
In addition to being employed with the world's largest retailer (and company), Mr. Chen was also previously employed with Intertek, a global 3rd party test lab and QA/QC service provider and various consumer product companies, importers and manufacturers.
Litigation Support - Mr. Chen serves as an expert witness for attorneys representing plaintiff and defendant. His services include review, inspection, consultation, thorough reporting, depositions and trial testimony, as needed. Mr. Chen has experience in the following consumer products areas in various capacities:
In essence, to warn is to place someone on advance notice of a danger or a potential danger. To warn requires that the person or people giving the warning have a superior knowledge of the harm or potential harm compared to the person or people exposed. Further, the person or the people who are warning must also have a superior knowledge of the means of reducing either the likelihood and/or the magnitude of the harm or potential harm as compared with the person or people exposed.
Air bag control modules utilize complex algorithms to make air bag deployment decisions based on crash severity related to the change in vehicle speed or deceleration over time. Due to the proprietary nature of air bag deployment algorithms, the velocity, acceleration, or displacement thresholds for air bag deployment during a collision are not easily obtained; however, a range of frontal barrier impact speeds and corresponding deceleration and displacement threshold values for air bag deployment can be approximated using known vehicle stiffness-to-weight ratios.
The purpose of this article is to distinguish the mechanism of knee injury (e.g., forward fall while foot is trapped, impact of knee on dashboard, chronic injury due to repetitive twisting, etc.) from the type of injury (e.g., torn meniscus, ruptured ACL, bursitis, etc
The purpose of this research was to determine whether or not there is a measurable relationship between the use of expert witnesses in civil litigation and the profitability of American law firms. The subjects in the present study were 1,065 American law firms which responded to a confidential survey. . .
Dr. Kevin A. Rider, PhD, PE, CPE of Forensic Human Factors, LLC., providing investigations and expert testimony regarding predictable human behavior, particularly as it relates to motor vehicle and pedestrian collisions, premises liability, and slips, trips and falls, the design and use of products, and adequacy of warnings/instructions. His work focuses on identifying the Human Factors Elements that lead to unfortunate incidents, and what should have been done to prevent them.
Dr. Rider is a Licensed Professional Engineer and Certified Professional Ergonomist, and has studied human movements and behavior, and served as a human factors consultant since 1999, including five years teaching industrial engineering and occupational safety courses at West Virginia University. He has presented at professional conferences, both nationally and abroad, and his research is published and cited in a number of peer-reviewed journals. He continues to serve as a reviewer for conference and journal manuscripts.
Dr. Rider has testified over 100 times, and excels at educating attorneys and jurors. His services are available to attorneys for both Plaintiff and Defense.
Areas of Expertise:
Driver Behavior - Cell Phone Use and other In-Vehicle Distractions
Product Liability - Design, Guards, Warnings, Adequacy of Instructions
Premises Liability - Sidewalks, Shopping Centers, Community Parks, Retail Displays
Slips, Trips, and Falls
Visibility and Lighting - Illumination and Conspicuity of Objects
Workplace Safety - Defective Products, Gross Negligence or Misconduct, Third Party Actions on Worksites
Based on over 50 years of experience, Bill Uhl helps attorneys with standard of care, safety and training issues regarding ATV, utility vehicle/side by side, snowmobile, motorcycle dirt bike and other off-road vehicle accidents. Mr. Uhl also assists attorneys with cases regarding recreational facilities and tours using all-terrain vehicles and other recreational off-road vehicles (ROVs). Other cases have dealt with safety training for customers, trail route maintenance, mechanical maintenance, motocross racecourse design and construction safety, dual sport bikes, street bikes, quads, and mountain bike trails.
Mr. Uhl has been a Sr. Instructor for OHVtraining.org, designated a “Preferred Training School” for over 25 years, training off-highway vehicle users in agencies as diverse as all branches of Military Special Forces, government agencies, Honda ATV test riders, Quest, T-Mobile, Kinder Morgan Natural Gas Pipeline Company and power plants. He was also inducted into the AMA International Hall of Fame for his on and off course expertise
Mr. Uhl has been the co-owner, operator, and lead mechanic of a retail store selling OHVs and street bikes for 26 years. He has been sponsored by OHV companies to represent the U.S. in international competitions, winning 5 gold medals for the U.S. Racing over 150,000 miles in the most rugged terrain around the world, Mr. Uhl has been named "Enduro Rider of the Year" by Motorcycle Magazine and been honored as a "Cross Country Legend" by the AHRMA national organization. He has also been designing, constructing, and maintaining recreational trails for over 20 years.
Litigation Support: Since 2004, Mr. Uhl has completed over 78 Off-Highway Vehicle cases, working for both plaintiffs and defendants, helping attorneys identify case merits, writing reports, preparing exhibits and providing depositions and trial testimony. He also helps attorneys understand Consumer Product Safety Commission (CPSC) guidelines for OHVs. He simplifies complex information about safety and risk issues related to incidents and injuries so they are easy for both attorneys and jurors to comprehend.
Areas of Expertise:
ATV (All-Terrain Vehicle), Quad, Four-Wheeler
UTV (Utility Terrain Vehicle), Side by Side, RZR
Motorcycle Dirt Bike
Dual Sport Motorcycle
Motocross Track Design
Motocross and closed-course competition
Street Bike Motorcycle accident
Standard of care
Analyze merits of a case
Content of off-road vehicle owner / operator’s manuals
Content of AMA’s off-road Competition Rulebook
Guided ATV Tour accidents / lack of maintenance or safety training
Guided UTV Tour accidents / lack of maintenance or safety training
Guided Snowmobile Tour accidents / lack of maintenance or safety training
ATV, Snowmobile & UTV rental accidents / lack of maintenance or safety training
Inadequate safety training for your off-road vehicle
The physics of operating off-road vehicles
Training & skill development for off-road / off-highway vehicles
Instructor training for ATV, UTV, snowmobiles & motorcycle dirt bikes
Motorized and non-motorized trail construction and maintenance
When we drive our cars and trucks, most of us don’t notice every time we enter our vehicle how well the seat belts are working. We are not prone to even think about seat belt maintenance. This is a sharp contrast to other items like regularly changing the oil in our vehicles, which we know is required maintenance.
If you are not personally an expert operator of all-terrain vehicles, snowmobiles or motorcycle dirt bikes and you take on a case involving an ATV, UTV, motorcycle or snowmobile, you’ll most likely search for an Expert Witness who specializes in off-highway vehicle (OHV) cases.
Andrew W. Thomas is the founder of Collision Analytics, an ACTAR certified Motor Vehicle Crash Reconstructionist, and a licensed Illinois Private Investigator. He regularly instructs crash investigation and reconstruction courses throughout the United States and Canada for the Northwestern University Center for Public Safety.
Background Experience - Mr. Thomas has over 14 years of experience as an Illinois law enforcement officer and has attended nearly 1,000 hours of crash investigation and reconstruction training, ranging from pedestrian collisions to accessing and interpreting heavy vehicle event data recorders. Throughout his tenure, he has investigated over 200 major collisions involving all types of vehicles.
Litigation Support - Mr. Thomas has worked in the public and private sector investigating numerous personal injury and fatal crashes and has been recognized by courts as an expert witness in crash reconstruction.
He currently leads a team of 7 investigators and 6 reconstructionists responsible for investigating all major crash investigations within unincorporated McHenry County, outside Chicago-land.
Since 2017, Collision Analytics has served clients as a full-service crash investigation and reconstruction company providing expert consultation, analysis, and testimony. Mr. Thomas' services are available to attorneys representing both plaintiff and defendant.
Serving Illinois, Indiana, Wisconsin, Iowa, Missouri, and Michigan, Collision Analytics has the equipment to retrieve electronic data and the experience to assess its impact on a case. Their services also include survey and drone scene mapping, forensic vehicle examinations, courtroom exhibit preparation, and crash reconstructions including electronic, GPS, and cellular phone data.
Jose J. Granda, PhD, PE, is a Professor of Mechanical Engineering at the California State University in Sacramento, CA. Prof. Granda is a Professional Registered Mechanical Engineer with almost 40 years of experience in the industry. A NASA Fellow, he served as a NASA public spokesman for 17 space shuttle missions.
Degrees and License:
PhD in Mechanical Engineering, University of California, Davis
ME in Mechanical Engineering, University of California, Berkeley
MS in Mechanical Engineering, National Polytechnic University, Ecuador
PE (Professional Engineer) License in Mechanical Engineering
Specialized Training: Vehicle Dynamics and Design, Vehicle Safety and Crash Reconstruction, Accident Bio-mechanics, Finite Element Modeling in Computer Aided Design, Advanced Mechanical Design and Failure Analysis, CSUS; Motorcycle Accident reconstruction; EDR Certification, Tech 1, Tech II, EDR Analysis Certification, Collision Safety Institute; Applying Automotive EDR Data to Traffic Crash Reconstruction, SAE Society of Automotive Engineers International; Advanced Accident Reconstruction Utilizing Human Factors course; Photogrammetry for Collision Reconstruction, Lightpoint Data; Bicycle and Pedestrian Accident Reconstructions; Heavy Commercial Vehicles Accident Reconstruction
Litigation Support - Prof. Granda is an expert in Forensic Engineering and Accident Reconstruction using computer simulations. His cases include accidents involving vehicles and people. He offers services to attorneys for plaintiff and defendant which include thorough written reports, depositions, and trial experience.
Dr. Jeffrey Buckholz is a practicing design engineer with over 40 years of experience in Traffic Engineering, Traffic Signal Timing, Signal Design and Signal Construction. He is also proficient in Pavement Marking Design, Roadway Signing, and Work Zone Traffic Control. Dr. Buckholz has authored 3 national training manuals in signal design, construction and inspection. He is a PE in 6 states: FL, GA, CA, MA, MI, OH and is a Professional Traffic Operations Engineer. Dr. Buckholz has been chief engineer of his engineering company for 30 years and was an Adjunct Professor at the University of North Florida from 2005 through 2007. He has served as an expert witness in over 220 cases. Past Project Experience:
Ralph Aronberg, P.E., has reconstructed over 1,500 accidents and has testified in over 150 jury trials, since founding the firm in 1983. He provides Expert Witness services in the areas of:
Traffic accident reconstruction (cars, trucks, motorcycles and pedestrians).
Vehicle occupant kinematics (seatbelts)
Traffic engineering design (geometrics, signing, markings, signals and lighting)
Sight distance analysis
Hazardous roadway conditions
Work Zone Traffic Control evaluation
Evaluation of roadway curvature
Traffic signal operations
Computerized accident reconstruction and simulation
Vehicle "black box" data retrieval (certified>
Mr. Aronberg is published in the fields of pedestrian / bicycle / motorcycle accident reconstructions, and 3 Dimensional Animations and Scientific Visualizations through the Society of Automotive Engineers. Mr. Aronberg is a Fellow member of the National Academy of Forensic Engineers, and certified as a Diplomat in forensic Engineering.
Peter J. Sullivan is a World Class Certified ASE Technician and ASE Certified Master Technician in Heavy Duty Truck, Passenger Car / Light Truck, Collision Repair, and Machinist, (National Institute for Automotive Service Excellence). He has over 35 years of technical, academic, operational, and managerial experience in the private and commercial transportation, heavy equipment, marine, and recreational vehicle industries.
Mr. Sullivan has extensive experience performing vehicle inspections and downloads of event data recorders and electronically stored information (ESI), including analysis, validation, testing, and preservation on almost all makes and models of vehicles and equipment.
Litigation Support - Mr. Sullivan utilizes his comprehensive legal, technical, and FMCSA / DOT knowledge to specialize in:
Product Defect Cases
Driver or Motor Carrier Compliance
Electronic Engine Control (ECM)
Electronic Throttle Control
Electronic Power Steering
He and his team perform accident site and vehicle inspections, perform data downloads, including analysis, on most all makes and models of vehicles and equipment, reconstruct accidents, perform exemplar and product testing, metallurgical testing, fluid analysis, and CMV driver and motor carrier compliance analysis. His primary areas of expertise include medium duty / heavy duty truck, hy-rail, light duty car / truck, motorcycle, ATV, marine, heavy equipment, machinery, tire, bicycle, commercial motor carrier safety and DOT compliance, and commercial motor vehicle driver / operator qualification and compliance, and job site safety.
Mr. Sullivan's services are available to counsel representing both Plaintiff and Defense. His litigation support services also include expert reports, depositions, and testimony for trial, OSHA, and governmental hearings.