Lighting Visibility Expert Witnesses

Carl Berkowitz, PE, Ph.D., AICP, is a Transportation and Traffic Engineering expert with almost 50 years of expertise. He's held various managerial and administrative positions in the transportation industry, government, private, and academic sectors.

Dr. Berkowitz has extensive multi-modal experience in planning, design, engineering, safety, security, construction, maintenance, operations, and management. He has written and edited numerous reports, studies, articles, and columns for major publications, journals, newspapers and scholarly periodicals.

Background Experience:

• Transportation and Traffic Engineering Consultant, 1988 - Present
• New York City Department of Transportation, New York, 1970 – 88
• New York State Office of Planning Coordination, New York, 1967 - 70
• New York State Department of Transportation, Babylon, NY, 1963 - 67
• New York City Transit Authority, New York, 1962 - 63

Litigation Support - Dr. Berkowitz has served as a litigation consultant since 1997.  He has the background and experience to make him ideally suited to contribute important information at every stage in the litigation process. Dr. Berkowitz is able to explain complex issues in layman terms, suggest strategies, investigate and uncover facts, perform literature reviews, research, and prepare safety evaluations. He has been deposed / testified over 50 times in the last 5 years.

Accident Investigation & Reconstruction Slip Trip & Fall Pedestrian & Bicycle Safety Railroad Safety Bus & Truck Safety Biomechanics & Human Factors Student Safety FELA & OSHA Accessibility / ADA Parking Lots & Garages

Construction Safety Elevators & Escalators Equipment & Machinery Traffic Engineering Traffic Lighting / Visibility Transportation Engineering Transportation Safety Transportation Rules & Regulations Terminals Walking & Working Surfaces

Frank S. Ferrantello, PLS, is a New York State Licensed Land Surveyor with over 20 years of experience in Surveying, Civil Engineering, and Land Use Planning. Both his field and office Work experience have dealt with a wide range of projects and sites including residential single, multifamily, high rise municipal, utility, private and public, commercial, and industrial. Prior to and post college, 

Mr. Ferrantello worked for the firm of John P. Ferrantello PC from 1998 to 2010 and MJM engineering from 2008 to 2016. His duties consisted of performing office and field surveying, drafting, research, computations, boundary analysis, solutions, investigations and determinations. 

Mr. Ferrantello also has extensive experience in Site Planning and Subdivision Consulting, examining title records, deeds and other recorded documents such as ingress and egress, pedestrian easements, right of ways, air and development rights, vista easements, bridle paths, beach, bathing and mooring rights, covenants and restrictions, real property, zoning, and other land use principles. 

Litigation Support - A mapping professional, Frank S. Ferrantello will enhancing your case, whether it is a vehicular accident, tree collision, wrongful death, adverse possession, extreme error, or misconduct surveys and maps. He has extensive knowledge of the local Long Island zoning codes, site planning and subdivision regulations. His services are available to attorneys representing plaintiff and defendant, insurance companies, and experienced developers. 

Legal Services:

Expert Witness Testimony Environmental Consulting Legal Descriptions and Deeds Liaison for Municipalities Variance Applications Wetlands Applications Zone Changing Requests Riparian Rights

Riparian Surveys Beach Enhancements Property and Easement Descriptions Trip and Fall Surveys Photo Dynamic and Exhibit Surveys Vehicular Accident Diagrams Forensic Surveys Legal Affidavits

Areas of Expertise:

Accident Investigation Photo Analysis & Mapping Sidewalks / Walking Surfaces Slips Trips Falls ADA Compliance / ADA Design Commercial Development Construction Zones Real Estate Zoning Drainage Land Development / Site Work Land Mapping Land Surveying – PRIMARY

Land Use Planning / Site Planning Urban Design / Development / Planning Civil Engineering Sanitary Engineering Sewers Aerial Photo Analysis & Mapping Floods / Flood Studies Site Analysis DOT Rules & Regulations Highway Sight Distance Highway / Street Design

View Frank S. Ferrantello's Consulting Profile.

Illumination Engineer, consultant, teacher, inventor, forensics investigator, and expert in lighting.   My 30+ years of experience has immersed me in different facets of the lighting industry.  I have worked for companies that cater to lighting design, lighting equipment manufacturing, 3d modeling lighting software, sales and service including post occupancy evaluation. My design experience includes indoor/outdoor lighting, safety and security, lighting and human health, glare, roadway lighting, sports lighting, and lighting standards.  Since 1999, I have been involved with standard writing committees within the Illuminating Engineering Society (IES).  For the IES, I served on 13 IES committees, of which was the chair of 7 of those committees producing over 11 standards documents.  

Teaching has also been a part of my career, instructing diverse groups from high school students to seasoned lighting professionals allowing these individuals to understand the concepts on their level.  In my practice, I have designed over 8000 designs in addition to teaching over 5000 students in my courses and presentations on lighting design, illumination engineering and the lighting industry.  I am a certified instructor for IES SEM courses, am a Lead instructor for the IES Street and Area Lighting Conference (SALC), as well as the SALC Education Coordinator from 2010 to 2019.  The University of Colorado  guest lecturer for three years.  I have authored several lighting courses and seminars as well as presenting them.  I received the designation of Fellow of the Illuminating Engineering Society in 2025.

View Matthew Hartley's Consulting Profile.

Dan W. Wall, BSME, specializes in the fields of Accident Reconstruction, Biomechanics and Motor Vehicle Injury Causation, Human Factors, and Injury Prevention in Motor Vehicle Design. Mr. Wall is fully accredited with ACTAR (Accreditation Commission for Traffic Accident Reconstruction), ACTAR No. 1140.

Dan Wall has conducted scientific and engineering analysis of motor vehicle collisions since 1987 for both plaintiff and the defense in civil and criminal cases. A qualified expert witness since 1987, he has offered litigation support services to insurance companies and attorneys in Arizona, California, Colorado, Tennessee and Louisiana and has testified in both Civil and Federal Courts.

Mr. Wall's past cases have involved commercial vehicle design and analysis, insurance investigations, low speed collisions and injury analysis, motorcycle collisions and rider analysis, vehicle handling and dynamics, seat belt analysis and injury mitigation, tire failures and rollover analysis, general accident reconstruction, and roadway analysis. He has conducted human factor analysis including reaction and perception, environmental effects, and general driver behavior. With a large library and the tools needed to do all types of motor vehicle reconstruction investigations, Mr. Wall is an asset to any team.

Dan Wall currently owns and rides a Harley Davidson Ultra Electra Glide Classic motorcycle and has gone through various levels of motorcycle training. He also has extensive experience as a boat operator and Marine Instructor.

For more information, visit www.wallaccidentreconstruction.com

Also view Dan Wall's article in Attorney At Law Magazine at http://attorneyatlawmagazine.com/phoenix/2014/01/17/accident-reconstruction-expert-dan-wall/

Areas of Expertise:

Mechanical Engineering Biomechanics Human Factors Accident Reconstruction Failure Analysis Forensic Investigation Motor Vehicle Design Dynamics and Handling Motorcycles Commercial Vehicles Rollovers Signage

Conspicuity Low Speed Collisions Marine Safety Bicycles Slip and Fall Accidents Pedestrians Accidents Tire Failure Seat Belt Issues Road Defects Off Road Driving Accidents Construction Zones Product Liability

View Dan Wall's Consulting Profile.