James C. Jeffery III P.E., PTOE

James C. Jeffery III P.E., PTOE

Traffic & Civil Engineering Consulting Services
P.O. Box 961
Los Gatos, CA 95031
Office: 408-377-6222

Jim Jeffery has provided consultation, expert testimony and litigation support for over 40 years. Mr. Jeffery's largest settlement is $5,000,000, affirmed on appeal. Roadway Design Defect Review, Traffic Engineering and Transportation Planning are his areas of expertise. He has qualified to testify in Federal, Superior and Magistrate Courts. Particular areas of specialization include: roadway design defect review to determine dangerous condition, safety and liability; design immunity; adequacy of design, construction and maintenance of traffic control devices and systems, including compliance with standards of care to meet existing conditions; construction zone accidents. His expertise applies to all roadway types and parking lots, all land-use types, all jurisdictions and all vehicle types. His cases often involve pedestrians and bicyclists. His clients are drawn from both the public and private sectors, representing plaintiff and defense. He has provided litigation support to attorneys across the United States, and in Canada.

Mr. Jeffery has been a Consulting City Traffic Engineer. He is a licensed Traffic Engineer (CA # 1179), licensed Civil Engineer (CA # 36644), licensed General Engineering Contractor (CA # 391026) and licensed Professional Traffic Operations Engineer (Transportation Professional Certification Board #197). He is Life Fellow of the Institute of Transportation Engineers (ITE) and has authored publications for ITE. He is an active member of the American Society of Civil Engineers, the Forensic Expert Witness Association and Engineers Without Borders. He has two offices, in Northern California: Los Gatos and Carmel Valley, CA.

Areas of Expertise
  • Civil Engineering
  • Eminent Domain
  • Traffic/Highway Safety
  • Transportation Engineering
  • Transportation Safety


References upon request.