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Highway - Traffic - Transportation Accidents Expert Witnesses

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Aaron (Al) L. Duncan II, ACTAR
Vehicle Collision Reconstructionist
Mail: PO Box 1608
Visit: 7805 Saint Andrews Road
Irmo SC 29063
USA
phone: 888- 827-7823 / 803-732-6600
fax: 803-732-7576
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Aaron (Al) Duncan II, ACTAR, is a Vehicle Collision Reconstructionist with Warren. He is accredited as a Traffic Accident Reconstructionist by The Accreditation Commission for Traffic Accident Reconstruction. 

Background Experience - Prior to joining Warren, Mr. Duncan worked for 23 years as a South Carolina Highway Patrol Trooper to include 10 years as a Multi-Disciplinary Accident Investigation Team (M.A.I.T.) member. As a trooper, he investigated in excess of 1,000 vehicle accidents and incidents. Then, as a member of M.A.I.T. for 10 years, he was involved in over 1,000 detailed investigations and collision reconstructions. Mr. Duncan is a member of the South Carolina Association of Reconstruction Specialists (SCARS), the International Association of Accident Reconstruction Specialists (IAARS), and the Blue Knights International Motorcycle Group. He holds a Bachelor of Science Degree in Political Science from Lander University in Greenwood, South Carolina and completed the Law Enforcement Basic Program at the South Carolina Criminal Justice Academy in Columbia, South Carolina. 

Mr. Duncan has testified multiple times in state courts and he has been court qualified as an expert in accident investigation and collision reconstruction. His expertise focuses on investigating and reconstructing vehicle collisions involving single and multi-vehicles, animals, pedestrians, motorcycles, heavy trucks, and commercial vehicles. Mr. Duncan is also a skilled user of Forensic Mapping Technology and Computerized Collision Diagramming Software for collision scene analysis. He is experienced in the data download and analysis of airbag black boxes (Crash Data Retrieval Units) in automobiles, pickup trucks, and SUVs. 

Areas of Expertise:

  • Crash Data Retrieval
  • Forensic Mapping Technology
  • Vehicle Collision Reconstruction
Event Data Recorders (EDRs) were first introduced by General Motors (GM) in 1974. That data was only available to GM; however, since 1994 more and more vehicle EDR’s have recorded data that can be gathered. The data captured can be imaged and is being used by vehicle manufacturers, law enforcement officers, and collision reconstructionists to better understand what is happening in a collision. In accident investigation, EDRs have the potential to provide independent measurements of crash data that would elsewise be estimated by reconstruction methodology.

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44648 Mound Rd.
Suite 174
Sterling Heights MI 48314
USA
phone: 248-408-7981
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Douglas J. Van Sweden, PE, is a Mechanical Engineer with over 45 years of experience in the automobile industry, including 20 years with the General Motors Corporation.

Litigation Support - Since 1997, Mr. Van Sweden has been providing insurance companies, legal firms, and manufacturers with the objective, scientific research to clearly define what really happened, for the cost-effective answer. The facilities, equipment, training, and commitment to continuing education allow him to find and assemble the critical missing pieces in Accident Reconstruction cases. He painstakingly reconstructs events so the end picture will be the accurate and defensible answer to what really happened.

Mr. Van Sweden's services are available to attorneys representing plaintiff and defendant and include site review, record review, thorough reports, depositions, and trial testimony as needed.

Vehicle Expertise:
  • Cars
  • Trucks
  • Motorcycles
  • Boats
  • Recreational Vehicles
  • Bicycles
  • Personal Watercraft
  • Non-Transportation - Elevators, Hoists:
    • Vehicle Systems and Structures
    • Vehicle Design
    • Seat Belt and Airbag Restraint Systems
    • Interior Components
    • Fuel Systems
    • Electrical Systems
    • Cooling Systems
    • Exhaust Systems
  • Drive Trains
  • Brakes
  • Suspensions
  • Steering
  • Body
  • Corrosion
  • Crash Testing
  • Fires and Explosion Cause / Origin
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    Catherine Witt
    Traffic Safety Consultant
    PO Box 25436
    Kansas City Missouri 64119
    USA
    phone: 816-813-6232
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    Catherine Witt Traffic Safety Expert PhotoCatherine Witt specializes in Temporary Traffic Patterns during construction operations, maintenance operations, utility operations, and special events. Any time the motorist traffic pattern is changed there are specific requirements. Ms. Witt and her team are familiar with the requirements on a national level, in all 50 states, the state specific requirements and job site specific based on contracts.

    Experience: Ms. Witt and her team have a total over 100 years experience in the Traffic Safety Industry. She has trained over 20,000 construction, maintenance, utility and law enforcement workers in the requirements nation wide and started out doing installation over 25 years ago. Ms. Witt then worked for the City of Overland Park, KS doing design, plan review, special events and in house training.

    Catherine Witt provides litigation consulting and expert witness services for legal cases involving fatalities, catastrophic injuries, personal injuries, and workplace safety. She has expertise in Work zone safety and OSHA regulations for construction, utilities, special events, emergency response and maintenance. Ms. Witt's expert witness services are available to attorneys for both Plaintiff and Defense.

    Areas of Expertise:
    • Roadway Worker Safety
    • Temporary Traffic Control
    • Flagger Operations
    • Mobile Operations
    • Installation and Removal
    • High Visibility Safety Apparel
    • Adequate Signing
    • Adequate Channelization
  • Appropriate Tapers
  • Traffic Safety
  • Compliance with Plans and Standards
  • Compliance with Jurisdictional Requirements
  • Special Events
  • Emergency Response
  • Multi Jurisdictional / Multi Employers
  • P3
  • View Catherine Witt's Consulting Profile.
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    TechRecon, Inc.
    Charles R. Lewis
    Traffic Accident Reconstructionist
    3377 Bethel Rd., SE
    Suite 107-273
    Port Orchard WA 98366
    USA
    phone: 360-876-3919
    fax: 360-876-3926
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    Charles R. Lewis, President at TechRecon, Inc., is a Traffic Accident Reconstructionist accredited by the Accreditation Commission for Traffic Accident Reconstruction (ACTAR) in 1993.

    Mr. Lewis has been analyzing collision data and reconstructing traffic accidents for over 30 years. As a former Adjunct Instructor at the Texas Engineering Extension Service of Texas A&M University System, he was responsible for developing and presenting Traffic Accident Reconstruction course curriculum.

    Mr. Lewis' company, TechRecon Inc. (formerly Technical Collision Reconstruction), was one of the first accident traffic reconstruction companies in the nation to begin using Engineering Dynamics’ collision speed analysis and collision simulator software to analyze and reconstruct traffic collisions.

    TechRecon, Inc. is equipped with Engineering Dynamics HVE 3d collision speed analysis and three-dimensional collision simulation software. This software permits the detailed study and analysis of:
    • Passenger Car, Pickup Truck, and SUV Collisions and Rollovers
    • Heavy Truck Collisions and Rollovers
    • Motorcycle, Pedestrian, and Bicycle Accidents
    • Vehicle / Trailer Combinations Dynamics Analysis
    • Human Kinematics Analysis
    They are also equipped to conduct Crash Data Retrieval from Airbag Control Modules.

    Litigation Support - Mr. Lewis is individually qualified as a traffic collision reconstruction expert witness in Superior, District, and Federal Court for both criminal and civil matters. His services are also available for arbitration hearings and other administrative hearings.

    Mr. Lewis has testified at depositions and offered pre-trial consultations regarding virtually every aspect of traffic collision reconstruction. As a consultant and expert witness, he has prepared reconstructions for attorneys representing a wide variety of clients, from individuals to automobile manufacturers, insurance companies to County District Attorney’s offices in Washington, Alaska, and Oregon since 1985.
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    Dr. Shakir Shatnawi, Ph.D., P.E.
    Transportation Engineering Expert
    El Dorado Hills CA 95762
    USA
    phone: 916-790-1158 or 916-990-6488 (Cell)
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    Shakir Shatnawi, PhD, PE, specializes in Transportation Engineering and Pavement Design and has over 27 years of practical and extensive engineering and transportation expertise covering industry and public agencies including the Federal Highway Administration (FHWA) and the California Department of Transportation (Caltrans). As President of Shatec Engineering Consultants, LLC, he directs engineering operations and performs pavement studies and investigations.

    Background Experience - Dr. Shatnawi served as a principal investigator on multi-million dollar pavement projects. He taught highway and transportation engineering at California State University. He was the QC/QA program manager, the chief of the Pavement Design and Rehabilitation and the chief of Pavement Preservation, and served as the Caltrans State Pavement Engineer. He directed Caltrans’ Pavement Program as a Division Chief and oversaw over 50,000 lane miles with a budget of over $200 million in pavement preservation and over $500 million in pavement rehabilitation.

    Litigation Support - Dr. Shatnawi provides expert witness services, expert testimony, and litigation support to legal entities and attorneys representing both Plaintiff and Defense. His services include dispute resolution and failure and forensic engineering analysis and investigations on cases related to:
    • Accident Reconstruction
    • Highway Design Standards
    • Highway Specifications / Guidelines
    • Public Agency Policies / Practices
    • Pavements
    • Materials
    • Highway Geometric Design
    • Drainage
    • Asphalt
    • Concrete
    • Highway Repairs / Maintenance
  • Construction Quality Control / Quality Assurance
  • Construction Claims
  • Surface Conditions - Friction, Skid Resistance
  • Potholes / Roughness
  • Traffic
  • Highway Safety
  • Signage
  • Sight Distance Requirements
  • Roadside Hazards
  • ADA Requirements
  • Code Violations
  • View Dr. Shatnawi's Consulting Profile.
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    Scott L. Turner

    Two Office Locations. See Below.
    NJ, TN USA
    phone: NJ: 908-496-4273 / TN: 423-881-5469
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    Scott L. Turner is a highly qualified Commercial Motor Vehicle (CMV) Transportation Expert and HazMat Expert with over 25 years experience in the highly specialized field of CMV crashes and incidents, and 16 years as the CEO of a nationwide CMV crash & HazMat disaster response corporation.

    Mr. Turner's career includes personal response and/or investigation of over 1,000 CMV crashes, 200 cargo-tank truck crashes/incidents and a multitude of industrial setting incidents including fixed facilities, loading docks and loading rack disasters. His FMCSR and PHMSA knowledge, detailed reporting and powerfully delivered testimony can be a focal point of any civil litigation, where commercial motor vehicle crashes and/or transit incidents are at issue, with or without hazmat involvement.

    Areas of Expertise:
  • Level 1 FMCSA inspections
  • Commercial Motor Vehicle (CMV) post crash inspection
  • CMV crash investigation
  • Driver qualifications
  • Safety Programs
  • Trucking industry standards
  • Cargo-tank truck incidents
  • CMV loading/Off-loading cases (van, cargo-tank, flatbed)
  • CMV wreck involving hazmats
  • Loading rack explosions/disasters
  • Services Include:
  • Litigation support
  • Trial preparation consulting
  • Courtroom testimony
  • Commerical vehicle accident investigation
  • NIMBY hazmat
  • Highway construction zone incidents
  • CMV loading and offloading investigation
  • Level 1 FMCSA audits
  • Load securement incidents
  • New Jersey Office:
    PO Box 185
    Blairstown, NJ 07825
    Tennessee Office:
    P.O. Box 44
    Specncer, TN 38585
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    Mukul Verma, PhD
    Consultant & Professor of Mechanical Engineering

    USA
    phone: 248-971-0705
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    Mukul Verma Vehicle Engineering Expert PhotoMukul K. Verma, PhD in Mechanical Engineering and Applied Mechanics, brings more than 35 years of industrial, academic and R&D experience to his consulting practice. This extensive experience includes various engineering and management assignments in the development and testing of new automobiles at a major manufacturer of vehicles. He has led the implementation of technical advances in multiple fields of vehicle design and automotive safety, some examples being in areas such as - performance of airbag systems, pedestrian’s protection, car-to-SUV crashes, telematics for crash notifications, post-crash protection, heavy truck rollovers, motorcycle handling, etc. During period, Dr. Verma was additionally appointed by the automobile manufacturers’ associations and other research organizations to lead an international team of experts which then successfully developed engineering solutions to the urgent problem of safety of occupants in passenger cars when involved in crashes with heavier SUVs or pickup trucks.

    His recent academic experience has been in the field of sustainable transportation and he has taught graduate courses in mechatronics systems in vehicles and intelligent tire-and-vehicle systems.

    Dr. Verma has published more than thirty papers in peer-reviewed journals and at international conferences and has been active in professional organizations as invited speaker, session chairman and organizer. He is well-known for his expertise in Vehicle Engineering and Traffic Safety and his interviews and opinions have appeared in US and in international media on several occasions

    Litigation Support – Dr. Verma’s recent litigation-related work has been in two fields:

    1. Automotive forensics – accident investigation and product liability evaluation of automobiles. His work includes detailed incident analysis, evaluation of the performance of vehicle and airbag systems, preparation of expert reports, depositions and trial testimony.

    2. Intellectual Property – analysis of a patent’s validity and evaluation of infringement claims for complex electromechanical and safety-related components. This includes literature search, prior art, detailed reports on validity & infringement and deposition and trial testimony.

    His clients have included automobile manufacturers, large corporations, private citizens and government entities.

    View Dr. Verma's Consulting Profile.
    Many automobile accidents are complex cases with multiple events during a single accident. The aim of forensic investigations of such (and all other) accidents is to reconstruct the sequence and the severity of events during the accident and then to establish cause and- effect relationships between the injuries (or damages) and the probable factors - vehicle design (e.g. brakes, structure, airbags); vehicle operator (e.g. distracted driver, alcohol impairment, reduced vision); and operating conditions (e.g. fog, failed traffic sign, excessive speed, icy road).

    Hybrid cars have been on US roads for many years, starting with Honda InSight (1999) and Toyota Prius(2000) in mass production.

    In crashes between two automobiles, it is generally assumed that the lighter vehicle will suffer more damage and that its occupants will suffer higher levels of injury.

    This article contains a few of the findings from our recent study of automobile safety in frontal crashes. Parts of the data analyses are presented but details such as the relationship of a particular design feature to the measured injury indicators are highly dependent on specific cases and are available only for individual discussions.

    The New Car Assessment Program (NCAP) conducted by the National Highway Traffic Safety Administration (part of the U.S Department of Transportation) underwent major changes recently. For automobiles designated as model years 2011 and later, the changes involve both what is measured and what is published.

    Over the years, there have been several product liability litigations regarding pedestrians being injured and the front structure designs of the vehicles being alleged as the significant factor.

    The structural behavior of automobile seats and seatbacks is one of the factors often examined in investigating injuries to a vehicle's occupant(s) in crashes.

    Airbags in modern automobiles have been around for many years and their record in improving occupant safety in crashes is generally well accepted. However, many questions still arise regarding their deployment and performance in crashes.

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    James D. Madden, PE
    Senior Forensic Engineer
    8803 Brecksville Road,Suite 7-216, Cleveland, Ohio 44141
    1700 West Market Street, Suite 318, Akron, Ohio 44313
    --------------------
    ALL STATES
    USA
    phone: 440-838-1191
    fax: 440-838-1192
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    Regularly working in OH, PA, MI, NY & nearby states.
    Available Nationwide

    James D. Madden PE has over 40 years of experience as an Engineer including 17 years of Engineering Design, Industrial Operations, and Construction assistance, and 30 years of Forensic Engineering experience. James D. Madden's background includes the application of mechanical and chemical engineering research, industrial operations, equipment design, and facilities design with emphasis on Safety Analysis, Safety Design, and Safety Operations. James D. Madden's Forensic Experience has been based on principles of mechanical and chemical engineering and the principles of:

    • Human Factors
    • Safety Design
    • Safeguarding, including Machine Guards
    • Warnings
    • Codes, Standards and Recommended Practices

    Accidents Investigated by James D. Madden include:

    • Commercial / Industrial Equipment and Consumer Products
    • Chemicals, Gases, and Materials
    • Equipment and Industrial Fires and Explosions
    • Hazardous Combustion, including Furnace & HVAC Malfunction with Carbon Monoxide Poisoning
    • Industrial, Commercial, and Construction Operations and Facilities
    • Building and Property safety - Slips, Trips, Falls
    • Traffic Accidents including Roadway Design and Condition

    James D. Madden has worked over 30 years as a forensic engineer. In this time, James D. Madden has prepared over 600 written expert reports, and over 60 expert affidavits with technical content in response to motions. James D. Madden has provided testimony in over 90 discovery depositions and has testified in over 75 trials in local, state, and federal courts in several states. James D. Madden's services initially include consultation, on-site investigation, inspections, data collection, and preliminary evaluation. In addition, James D. Madden also provides calculations, testing, research, accident analysis, equipment and facilities analysis, accident and crash reconstruction, and verbal and written expert reports. James D. Madden's expert witness testimony is available for depositions, arbitrations, hearings, and trials.

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    Nik Ellis
    Managing Director
    188 - 200 Pensby Road
    Heswall Wirral CH60 7RJ
    GBR
    phone: 0151-342-9961
    fax: 0151-342-7844
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    Established in 2000, Laird are an Expert Witness services firm supporting the Legal sector across the UK. They understand the importance of providing an efficient and seamless customer journey and review their processes continually to ensure that they achieve and surpass expectation levels daily.

    With constantly evolving IT systems and exceptional customer service, Laird are leading the way in the Expert Witness sector. You can instruct with the click of a button via their website and will be kept up to date at every stage of your case.

    Laird have three main areas of expertise:

    Automotive Experts
    • Vehicle Damage Reports
    • Low Velocity Impact
    • Diminution in Value
    • Desktop Reports
  • Vehicle Valuation Disputes
  • Accident Reconstruction
  • Pre and Post Repair Inspections
  • Vehicle Data Check
  • Photography Experts
    • Locus Reports
    • Personal Injury Photography Reports
    Language Experts
    • Interpretation
    • Translation
    • Witness Statements
    • Document sign up service
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    James M. Miller, PE, PhD
    Founder
    2392 Fuller Court
    Ann Arbor MI 48105
    USA
    phone: 734-662-6822
    fax: 734-747-9712
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    The experts at Miller Engineering are Ann Arbor based professional engineers celebrating 35 years of service to University, Government, Insurance, and Industry through research, publications, presentations, and testimony. Miller Engineering has a staff of engineers and experts in the Mechanical, Chemical, Agriculture, Industrial, and Human Factors fields of engineering with specific knowledge in the following areas:

    Vehicles
    • Car/Truck Accident Reconstruction
    • Crash Data Retrieval (CDR)
    • Visibility & Reaction Time Analysis
    • Tires, Trailers, Brakes & Accelerators
    • Truck/Off Road Vehicle Egress/Ingress
    • Traffic Signing and Construction Zones
    Mechanical & Electrical Safety
    • Product Safety & Analysis
    • Machinery - Metal, Wood, Plastic Molding
    • Machine Guarding & Safety, Robots, Automation
    • Hazard and Risk Analysis
    • Employee Safety Procedures – OSHA
    • Electrical Distribution & Transmission Hazards
    Warnings & Instructions
    • Warning Labels & User Manual Design
    • Hazard Analysis & Product Label Designs
    • Medical Device & Drug Warnings & Instructions
    • Inadequate Warnings Analysis
    • Standard Compliance (ANSI Z535)
    • Product Recall Information & Strategies
    Chemicals Safety & Labeling
    • NEW OSHA HAZCOM (2012) & GHS Review
    • MSDS, SDS and Product Label Compliance
    • Toxic Torts - Diacetyl, Asbestos, Benzene, Lead, Carbon Monoxide
    Chemical Exposures & Workplace Safety
    • Chemical Inhalation, Ingestion, Dermal Contact
    • Contamination - Water & Environmental
    • Manufacturing & Process Line Accidents
    • Slips, Trips, Falls, & Entanglements
    Fires & Explosions
    • Cause & Origin Investigations
    • Gas, Vapor, & Electrical
    Agriculture
    • Tractor & Equipment Accidents
    • Chemical Applications & Exposures
    • Crop Storage & Harvesting Accidents
    • Pesticides
    Construction
    • Vehicle Visibility Accidents
    • Slip, Trip, & Fall Accidents
    • Power Tool Repetitive & Immediate Injuries
    • Scaffolding - Cranes - Hoisting - Fork Lifts
    Consumers/Household Safety
    • Appliances & Tools
    • Child Furniture, Choking, Playgrounds
    • Swimming Pools & Exercise Equipment
    • Recreation - ATV, Boats, Bicycles, Boards
    • Ladder, Stair, Step and Railing Accidents
    • Slip, Trip, & Fall Accidents
    Insurance Subrogation & Forensics
    • Accident Investigations
    • Electrical & Fire Causation
    • Chemical Leakage Damage
    • Defective Equipment Injuries
    • Premise and Process Damages
    James Miller Mechanical Engineering Expert PhotoJames M. Miller, PE, PhD – Founder

    Dr. Miller is an Emeritus Professor at the University of Michigan College of Engineering and a registered professional engineer and consultant with over 35 years of experience as an expert witness. He specializes in warnings, labeling and instruction manuals, consumer product design, machine guarding, process safety, fire science, vehicle visibility, tractor egress/ingress, pedestrian and worker slip and fall prevention, recreational vehicles (ATVs, boats, and personal watercraft), compliance with occupational safety and consumer safety standards (OSHA, MSDS, CPSC, ANSI, ASTM, UL, etc.).


    Mark Lehto Engineering Expert PhotoMark R. Lehto, PhD – Co-Founder

    Dr. Lehto is a Professor of Engineering at Purdue University. He specializes in knowledge engineering, warnings and instructions, structuring expert systems, accident modeling, accident statistical analysis, consumer product safety, boating safety, in-field national surveys of product usage and product information effectiveness.






    Bradley Cook Mechanical Engineering Expert PhotoBradley T. Cook, PE – Managing Engineer

    Bradley is a registered professional engineer and consultant with extensive experience in accident reconstruction. He specializes in vehicular accident reconstruction and has investigated hundreds of vehicle accidents involving cars, trucks, pedestrians, bicyclists, motorcycles, etc. Bradley also has experience in product safety and hazard analysis; occupational safety and health (OSHA) compliance; pedestrian and worker slip and fall prevention; investigation and reconstruction of industrial and consumer product accidents. He holds a Bachelor of Science in Mechanical Engineering from the University of Michigan and a Masters of Science in Engineering with a Biomedical concentration from Purdue University.
    Mark R. Lehto & Steven J. Landry
    Introduction to Human Factors and Ergonomics for Engineers, Second Edition presents and integrates important methods and tools used in the fields of Industrial Engineering, Human Factors and Ergonomics to design and improve jobs, tasks and products. It presents these topics with a practical, applied orientation suitable for engineering undergraduate students.
    Mark R. Lehto, Steven J. Landry & Jim Buck
    Emphasizing customer oriented design and operation, Introduction to Human Factors and Ergonomics for Engineers explores the behavioral, physical, and mathematical foundations of the discipline and how to apply them to improve the human, societal, and economic well being of systems and organizations.
    Mark R. Lehto & James M. Miller
    James M. Miller, Mark R. Lehto & J. Paul Frantz
    James M. Miller, Mark R. Lehto
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    Ray G. Helmer, P.E.
    Principal
    9314 Bankside Drive
    Houston TX 77031-1713
    USA
    phone: 713-777-7611
    fax: 713-774-6881
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    Ray Helmer is a Licensed Professional Engineer in the states of Texas, Oklahoma, Alabama, Ohio and Kansas. He is available to perform Expert Witness Services in all 50 states.

    Ray Helmer has acted as an Expert Witness and as a consultant to both plaintiffs and defendants and their representing counsel in the resolution of numerous cases. He has been called as a consultant in cases involving insurance companies, utility companies, state highway departments, railroad companies, private companies, and land and commercial developers.

    As an Expert Witness/Consultant, Mr. Helmer enjoys a reputation for his rigorous attention to detail and professional expertise. He spends a considerable amount of time inspecting the sites where the alleged instances occurred, taking photographs, preparing detailed surveys, and reports, reviewing witnesses' statements and depositions, and using his professional knowledge and expertise to provide accurate and impartial assessments.

    Areas of Expertise:
  • Civil, Structural and Forensic engineering
  • Highway engineering, roadways, sight distance
  • Concrete and Asphalt Pavements
  • Highway / Street lighting
  • Traffic engineering, signals, signs, striping
  • Traffic noise studies
  • Accidents – automobile, train, motorcycle, pedestrian
  • Traffic accident testimony involving city / County / State DOTS
  • Hydraulics, hydrology, drainage, flooding
  • Sanitary engineering, sewers, overflows
  • Water treatment, distribution, pumping
  • Water disinfection byproducts (DBPs)
  • Wastewater treatment plants, lift stations
  • Soil expansion, contraction, settlement
  • Foundation failure, structural damage
  • Plumbing, leaks, water intrusion
  • Airports, FAA standards, runways, taxi ways, ramps
  • Bridges, buildings, corrosion, concrete cracking
  • Construction defects, fraud, accidents, delays, estimates
  • Hydroplaning is frequently alleged to be a cause of vehicular traffic accidents. This is because many persons, even law enforcement personnel, may not know the technical definition and criteria for hydroplaning.

    Many vehicular accidents happen because drivers are in too much of a hurry or they are distracted by any number of things. They just are not paying close enough attention to their surroundings. Traffic accidents at signalized intersections are common where both drivers claim the other driver is at fault.

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    Dr. A.B. Thakker
    Ph.D., PE, FASM, CMFGE
    2839 Paces Ferry Road
    Overlook II, Suite 1160
    Atlanta GA 30339
    USA
    phone: 800-215-4468 or 404-771-2600
    fax: 770-234-4148
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    Firm Profile: Established in 1996, Global Technology Experts, Inc. (GTE) specializes in providing multi-disciplinary engineering and scientific consulting, product testing, safety and forensic engineering services to manufacturers, defense and plaintiff attorneys, and to the insurance claims industry. Our professional staff includes engineers, scientists, and technical specialists who have years of experience and excel as experts in wide range of disciplines. GTE has investigated more then 350+ failure cases that include: Machinery/Equipment, Slip and Fall, Accident Reconstruction, Vehicle Rollover, Lift trucks, Bicycle, Generator/Battery, Tree stand, Construction Defects, Pump/Boiler/Chiller, Engine/Transmission, Weld joints, Corrosion, Fatigue, Polymers, Ceramics and Composite materials. GTE also specializes in Life assessment and durability analysis of prototype components etc.

    Areas of Expertise:
  • Electrical Failures
  • Motor/Generator Failures
  • Battery Failures
  • Accident Reconstruction
  • Tire Defects
  • Machinery & Equipment Failures
  • Construction Equipment Failure
  • Aircraft Engine/Structural Failure
  • Structural Engineering
  • Mechanical Metallurgy/Materials Failure
  • Fatigue & Corrosion
  • Product Failure Analysis
  • Bicycle, Ladder, Slip/trip & fall
  • Building Construction & Defect Analysis

  • Education: We have highly experienced and qualified staff:
  • PhD, Engineering Science & Materials, Virginia Tech
  • PhD, Electrical Engineering, Georgia Tech
  • PhD, Mechanical Engineering, Auburn University
  • BS, Civil and Construction Engineering, Kansas State University
  • BS, Mechanical Engineering, S.U.N.Y., Buffalo, NY
  • MBA, Technology Management, Florida Institute of Technology

    Certifications:
  • PE – Registered Professional Engineers
  • CMfgE – Certified Manufacture Engineer

    Professional Affiliations:
  • Southern Law Association
  • Atlanta Claims Association
  • American Society of Mechanical Engineers
  • Institute of Electrical and Electronics Engineer
  • American Society of Civil Engineers
  • American Society of Materials
  • American Society of Nondestructive testing
  • American Welding Society
  • American Society of Testing Materials
  • Society of Aerospace, Materials and Process Engineers

    Principals:
  • Dr. Ash Thakker, PhD, PE, FASM,FSME, CMfgE (Structures, Materials, Fatigue, Fracture, Composites, Damage Tolerance)
  • Mr. George Kremer, BSME, AAS (Metallurgy, Corrosion, Coatings and Mechanical Failures)
  • Dr. Nicholas Propes, PhD (Electrical Machinery Failures, Maintenance Systems, Testing and Analysis)
  • Dr. Freeman Rufus, PhD (Battery/Motor/Generator Failure)
  • Dr. Jyoti Ajitsaria, PhD (Mechanical Failures)
  • Mr. Mike Healy, BS (Civil, Construction Engineering, Buildings)
  • Mr. Ralph Cunningham, BS (Physical Testing, Accident Reconstruction)
  • 11/20/2010 · Slip, Trip & Fall
    A "slip and fall" or "trip and fall" is the generic term for an injury which occurs when someone slips, trips or falls as a result of a dangerous or hazardous condition on someone else's property. It includes falls as a result of water, ice or snow, as well as abrupt changes in flooring, poor lighting, or a hidden hazard, such as a gap or hard to see hole in the ground

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    Dr. Russell Darnell
    President
    PO Box 5586
    El Dorado Hills CA 95762
    USA
    phone: 916-825-5592
    fax: 530-676-1513
    Dr. Russell Darnell is an expert in Accident Reconstruction: Motorcycles, ATV's, Cars, Trucks, Buses, Heavy Equipment, Trailers, Boats, Ships, Yachts, Racetrack Design and Maintenance.

    Areas of Expertise:
  • Motorcycle Accidents
  • ATV Accidents
  • Automobile Accidents
  • Truck Accidents
  • Towing Accidents
  • RV Accidents
  • Tire-Related Accidents
  • Marine Accidents
  • Repair Fraud
  • Machinery
  • Fires- Source and Cause
  • Services Provided:
  • Review and Advise on Case Merits
  • Defense and Plaintiff Case Accepted
  • Accident Reconstruction
  • Trial Preparation
  • Video and Photo Analysis
  • Exhibit Preparation
  • Trial Testimony
  • Deposition Testimony
  • Mediation Testimony
  • Research and Development Training
  • Engineering Management
  • Russell E. Darnell, PhD
    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. . .
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    Daniel W. Vomhof, PhD
    Certified Accident Reconstruction Specialist
    8387 University Avenue
    La Mesa CA 91942
    USA
    phone: (619) 464-3477 / Cell: (619) 784-8238
    fax: 619-464-2206
    daniel_vomhof_logo.jpg
    Dr. Daniel W. Vomhof, PhD is a Accident Reconstruction Specialist with specialized knowledge in Human Factors and BioMechanics. He provides Scientific Evidence Evaluation and Event Reconstruction in matters involving personal injury, property damage, or product failure or malfunction.

    Dr. Vomhof has been a full time forensic reconstruction consultant since 1973. He has a PhD in Biochemistry / Physiology and MS in Analytical Chemistry and Occupational Safety & Health.

    Areas of Specialization:
    • Event Reconstruction
    • Vehicle Accident Reconstruction
    • Biomechanics and Biodynamics
    • Human Factors
    • Questioned Documents
    Litigation Support - Dr. Vomhof has reconstructed over 3,000 accidents and appeared in over 500 trials as a testifying expert witness. Dr. Vomhof is available to attorneys representing both Plaintiff and Defense.

    Services Include:
    • Evaluation of traffic signal timing related to vehicle, pedestrian, and motorcycle accidents
    • Reconstruction of vehicle, pedestrian, and motorcycle accidents
    • Evaluation of Pedestrian, Facility, Walking Surface interactions
    • Measurement and evaluation of lighting as it affects perception of hazards
    • Measurement and evaluation of sound levels
    • Documentation of vehicle evidence and scene conditions through photography and measurements
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    Christopher Gayner
    CEO /Senior Engineer
    1187 Coast Village Rd Ste 105
    Santa Barbara California 93108
    United States
    phone: 888-687-1334

    Christopher Gayner is the CEO of Expert Reconstruction Company and has more than 30 years of professional experience with over 1300 Traffic Accident cases involving Automobiles, Trucks, Buses, Trains, Motorcycles, Bicycles and Pedestrians. Mr. Gayner has testified over 300 times in trials, depositions, mediations and arbitrations. He is ACTAR certified and a Member of the Society of Accident Reconstructionists and the Society of Automotive Engineers. Areas of Specialization:

    • Accident Reconstruction (Manual and Computer-Aided)
    • Human Factors
    • Occupant Dynamics
    • Bio-Mechanics
    • Restraint Systems (Seat Belts & Air Bags)
    • Product Defects
    • Crashworthiness
    • Vehicle & Scene Inspections
    • Accident Scene and Vehicle Crush Damage Assessment
    • Crash Data Retrieval
    • Photographic Documentation and Interpretation
    • Expert Witness Testimony
    • Neutral Expert Mediation Services
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