Traffic Engineering Expert Witnesses in Washington

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...

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...