Work Zone Expert Witnesses

Mesa, Arizona

Traffic Engineering, Construction - Construction Traffic Control, Traffic Engineer, Professional Traffic Operations Engineer, PTOE, Highway Construction Zone, Temporary Traffic Control, Highway Construction, Intersection Sight Distance, Highway Signage, Road Signs, Traffic, Transportation Engineer, Work Zone, Construction Zone, Road Defects, Sight Distance

Professional Engineer (PE) and Professional Traffic Operations Engineer (PTOE) specializing in forensic evaluations of temporary and permanent traffic control, roadway design, highway construction zones, and traffic signal timing as they relate to vehicle and vehicle-pedestrian collisions. Hold a Bachelor of Science in Civil Engineering from the United States Coast Guard Academy and have over 20 years (37,000+ hours) of experience in traffic engineering, roadway design, highway construction and maintenance, and related forensic investigations. Background as a Traffic Engineer, Maintenance Engineer, and Engineering Design Manager for the New Mexico Department of Transportation offers deep insight into temporary and permanent traffic control and roadway design issues surrounding vehicle collisions. Experience working for heavy civil highway and utility contractors provides the ability to clearly define the respective responsibilities of contractors and government agencies regarding co...

Cromwell, Connecticut

OSHA, Safety - forklift, slip trip & fall, machine guarding, amputation, material handling, occupational safety & health, aerial lift, boom lift, scissor lift, work zone, traffic, flagger, scaffold, ladder, lockout/tagout, Emergency Medical Services, mobile elevating work platform, excavation, railroad, MEWP

Safety expert retained in over 440 cases, state and federal. Deposition and trial testimony for matters in over 20 states. 35 years experience in safety & health and OSHA compliance consulting & training for industry, construction, utilities, and emergency services. Frequent speaker at conferences and seminars - international, national, regional, state and local. Over 24 years as Instructor for OSHA Training Institute Education Center Region 1 (Boston region) and Adjunct Faculty at Keene State College, teaching OSHA standards & policies, technical topics, accident/incident analysis, related ANSI standards, and Outreach Trainer courses for both construction and general industry. Lead instructor for fall protection, scaffold, and work zone safety courses. Construction Safety Professional of the Year, Associated General Contractors of Connecticut, 2022. Authorized OSHA Outreach Trainer for both construction and general industry. ATSSA Master Instructor. Experienced in: Personal in...

Jacksonville, Florida

Traffic Engineering, Construction Defects - Traffic Signal, Trucks, Pedestrians, Crash, Traffic Accident, Work Zone, Roadway, Sight Distance

I have 44 years of hands-on technical experience in the traffic engineering field, running my own consulting firm for 34 of those years. I am a recognized national expert in traffic signal operation, timing, design, and construction and am also very proficient in pavement marking design, roadway signing, and work zone traffic control. However, I am not an accident reconstruction expert. I have participated in over 260 cases nationwide with many of these cases involving deposition and mediation testimony and a number of these cases going all the way to trial. I have given both live and videotaped testimony and have testified for both the plaintiff and the defense. It should be emphasized that I am a practicing engineer and that my expert testimony work constitutes only a portion of my engineering practice.

Boynton Beach, Florida

Transportation, Accident Reconstruction - Trucking, Trucks, Commercial Vehicles, Truck Safety, CDL driver standards, Human Factors Analysis, Crash investigation, Hazardous materials, Compliance, Fatigue, Work zone, Distracted driving, Fleet Safety, Impaired driving, Carrier Vetting and Broker Selection, Video based crash reconstruction, DOT, Driver qualifications, OSHA, Loading

I bring a rare combination of command‑level enforcement experience, ACTAR‑certified reconstruction expertise, legal training, and national‑level fleet‑safety consulting to high‑stakes transportation matters. I served as Lieutenant and Commanding Officer of the Massachusetts State Police Commercial Vehicle Enforcement Section (2010–2022), directing statewide CMV enforcement, post‑crash investigations, MCSAP operations, and specialized inspections involving heavy trucks, buses, hazardous materials, and cargo‑tank vehicles. As a certified accident reconstructionist (ACTAR), licensed attorney, and licensed CDL operator, I provide integrated analysis of crash causation, regulatory compliance, driver behavior, and operational standards. My expertise includes video‑based crash reconstruction, human‑factors evaluation, and driver training in defensive driving and collision‑avoidance using CDL‑based standards. I also serve as a crash‑investigator trainer for a national DOT‑compliance comp...

Port St Lucie, Florida

Safety, OSHA - fall protection, boom lift, aerial lift, ladder, occupational safety & health, MEWP, slip trip and fall, scissor lift, work zone, confined space, OSHA, excavation, scaffold, lockout/tagout, electrical shock

Experienced Safety Professional (20 years) in multiple industries. Construction experience (14 years) - laborer, carpenter, and ironworker. Experience in safety/OSHA compliance and training in 1910 General Industry and 1926 Construction standards. Construction Health and Safety Technician (CHST) and Safety Management Professional (SMP). American Society of Safety Professionals (ASSP) Professional Member. Actively working as a safety professional. Safety responsibilities and training encompass fall protection, lockout/tagout procedures, OSHA accident investigations, aerial/scissor lift training, and safety oversight. National Association of Women in Construction American Society of Safety Professionals National Safety Council

Orland Park, Illinois

OSHA, Construction - Struck by Equipment, back over, Fall Protection, Multi-Emplyer, Fall Prevention, slip trip & fall, aerial lift, crush, Scaffold, Work Zone, MUTCD, Crane, Steel Erection, Excavation, Silica, Lead, Tunnel, Confined Space, MEWP, scissor lift

Over 30 years as a safety executive and OSHA compliance manager, trainer, advisor, and leader on major construction projects throughout the USA. Expert at applying OSH Act of 1970 standards, regulations, policies, and Letter of Interpretation. Experience includes over 50 OSHA inspections and associated negotiation and defense preparation related to OSHA citations. Expert at incident investigation, accident reconstruction, and injury management and investigation. Extensive experience and expertise in MUTCD Traffic Controls and rules. AREAS OF EXPERTISES INCLUDES: • Liability Assessment & Contractor Duty of Care • Accident Investigation & Root Cause • Aerial Lifts, MEWP • Construction Safety/Accidents • COVID Safety & Pandemic Management • Crane Safety, Critical Pick Planning, & Rigging • Disaster & Emergency Management • Dive/Underwater Operations • EM-385 U.S. Army Corps of Engineers • Excavation, Trenching, & Soil Mechanics • Slip, Trip, Falls, Stirs & Floor Safety Certi...

MANHATTAN, Illinois

OSHA, Construction - Fall Protection & Prevention PFAS, Multi-Employer Work Site, Excavation & Trenching, Ladder & Scaffold, Slip & Trip, Steel Erection, Welding & Cutting, Heavy Construction Equipment Back over Run over Struck By, Confined Space, Crane Safety Critical Pick Planning & Rigging, Work Zone, Hand Arm & Tool Safety, Forklift

Over 30 years as a safety executive and OSHA compliance manager, trainer, advisor, and leader on major construction projects throughout the USA. He has investigated, analyzed, and prepared professional opinions and testimony on safety matters over the course of the past 20+ years. Expert at applying OSH Act of 1970 standards, regulations, policies, and Letter of Interpretation. Experience includes over 50 OSHA inspections and associated negotiation and defense preparation related to OSHA citations. Expert at incident investigation, and injury management and investigation. AREAS OF EXPERTISES INCLUDES: • Liability Assessment & Contractor Duty of Care • Accident Investigation & Root Cause • Aerial Lifts, MEWP • Construction Safety/Accidents • COVID Safety & Pandemic Management • Crane Safety, Critical Pick Planning, & Rigging • Disaster & Emergency Management • Dive/Underwater Operations • EM-385 U.S. Army Corps of Engineers • Excavation, Trenching, & Soil Mechanics • Slip, Trip, ...

Cary, North Carolina

Traffic Engineering, Transportation - sight distance, stop sign, pavement marking, traffic engineer, MUTCD, traffic signal, red light, traffic control device, traffic sign, red light crash, stop light crash, AASHTO, sight line, sight triangle, work zone, traffic expert, roadway safety, traffic safety, railroad crossing

Daren Marceau is a former police officer and is a practicing traffic & transportation engineer licensed in several states. Mr. Marceau managed an engineering design practice at a national consulting firm where he prepared transportation and traffic engineering plans including designs for intersections, work zones, traffic signals, pavement marking, and roadway signs. He also investigated and reconstructed hundreds of traffic crashes, and testified as an expert witness. Daren Marceau currently serves attorney clients as a consultant and expert witness, and teaches classes for law enforcement, engineering, insurance, and legal professionals. He is also the leading author on traffic signal crashes. Mr. Marceau works in all 50 states. Mr. Marceau's current focus is investigating and providing expert testimony in traffic crash cases involving traffic control devices and/or sight distance issues in both final and temporary/work zone conditions. Mr. Marceau also has significant pers...