Sight Distance 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...

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.

Lakewood Ranch, Florida

Traffic Engineering, Safety - Sight distance, traffic signs, traffic congestion, traffic signals, traffic control devices, construction zones, traffic safety, ADA, bicycle, pedestrian, traffic calming, neighborhood traffic management, human factors in traffic safety

• Provided expert opinions, prepared technical reports, deposed and/or testified in 15 traffic/safety cases • Accepting work in most states • 39 years of experience in traffic/transportation engineering and safety • Past Chair of the Institute of Transportation Engineers (ITE) International Traffic Engineering Council (determines standards, practices and handbooks for the industry) • Experience as a City and County Traffic Engineer, including review, design and construction management of pavement, sidewalk, ADA ramps, traffic signal, bike lane, striping and marking, sign, construction zone, neighborhood traffic management, traffic signal timing, and traffic calming projects • Speaker at international, national, regional and local conferences and seminars • Instructor for nine Institute of Transportation Engineers (ITE) webinars and several in-person courses on traffic and safety engineering • Graduate of Leadership ITE / ITE Fellow • Excellent writer in both technical and laymen ter...

Ranchos de Taos , New Mexico

Traffic Engineering, Civil Engineering - Highway Design , Roadway Safety , Roadway Defects, Construction Work Zones, Traffic Control Devices, Traffic Signals, Guardrails, Roadside Hazards, Defective Pavements, Highway Maintenance, Construction Claims, Construction Delays , Construction Defects, Pedestrian Walkways , Property Right of Way, Sight Distance, Roadway Lighting

Max Valerio is a licensed Professional Engineer with over 36 years of experience in Roadway Design and Transportation Engineering. He specializes in Traffic Engineering, Traffic Control Compliance, and Federal Highway Safety Regulations. Max brings extensive experience in highway and construction administration, including Pre-construction development, Technical Specifications, Cost Estimates, Traffic Control Planning, Traffic Engineering, Contract Development and Negotiations, Construction Contract Administration, and Program and Project Management. As a Civil Engineer, Max served as the Chief Engineer for the New Mexico Department of Transportation. As Chief Engineer, he directed the department’s statewide design and engineering program and staff. In this role, Max developed Design Policy & Guidance and produced an annual multi-million-dollar Design and Construction program. Max served as the agency’s representative on Contractor Claims & Disputes, Right of Way Condemnation cases...

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...

Mountlake Terrace, Washington

Traffic Engineering, Transportation - Rapid Rectangular Flashing Beacon (RRFB), pedestrian safety, crosswalk expert, traffic signals, municipal engineering, standard of care, roadway lighting, ADA compliance, beacon failure, signal maintenance, traffic control devices, public agency liability, human factors, sight distance, MUTCD, pedestrian visibility

Jocelyn Mamchur, PE is a civil engineer with over 20 years of experience in municipal infrastructure design and operations. Her professional background includes roadway design, pedestrian facilities, traffic signals, roadway lighting, underground utilities, and ADA compliance within a large public agency environment. Ms. Mamchur specializes in pedestrian safety systems, including Rapid Rectangular Flashing Beacons (RRFBs) and other pedestrian warning devices. Her expertise includes system design, placement, power and detection systems, visibility and conspicuity, inspection protocols, maintenance practices, and operational performance. She routinely evaluates issues involving partial system failures, device outages, sight distance, driver yielding behavior, and agency response to reported malfunctions. She provides standard-of-care analysis for matters involving public agencies and consulting engineers, with a focus on real-world municipal practices, staffing constraints, document...