Mr. Rafat Raie is a transportation engineer, educator, and technology innovator with more than three decades of experience in traffic engineering, transportation planning, intelligent transportation systems, and multimodal mobility. As Principal of Advanced Mobility Group, he provides strategic planning, engineering, and technology services to public agencies throughout California, helping communities improve safety, mobility, and operational efficiency across all transportation modes.
A distinguished instructor with the University of California, Berkeley Institute of Transportation Studies TechTransfer Program since 2001, Mr. Raie has taught a broad range of professional development courses covering transportation planning, traffic signal design and operations, multimodal transportation systems, bicycle and pedestrian safety, transit operations, parking management, traffic engineering applications, and emerging transportation technologies. His teaching combines technical theory with practical, real-world implementation experience gained through decades of public-sector leadership and consulting practice.
Throughout his career, Mr. Raie has served in key municipal leadership positions, including City Traffic Engineer roles in several California communities, where he directed transportation planning, traffic operations, signal systems, parking programs, safety initiatives, and capital improvement projects. He has been at the forefront of deploying innovative transportation technologies, including leading the implementation of the first cloud-based emergency vehicle preemption system deployed in the United States and advancing Smart City applications that improve transportation system performance and public safety.
Widely recognized for his expertise in transportation technology and digital mobility, Mr. Raie currently leads major initiatives involving connected transportation systems, multimodal data integration, transportation analytics, communications infrastructure, transit priority strategies, parking technologies, and advanced traffic management systems. He is also directing the development of the Contra Costa Transportation Authority's Digital MOTIONS Master Plan, helping establish a framework for the future integration of digital infrastructure, data-driven transportation management, and emerging mobility solutions.
Mr. Raie's unique combination of technical expertise, leadership experience, and instructional excellence provides students and transportation professionals with practical insights into the planning, design, operation, and management of modern multimodal transportation systems.

Tim Frémaux works as a Principal Transportation Engineer for the Los Angeles Department of Transportation, overseeing the Bureau of ATSAC and Metro Programs. ATSAC stands for Advanced Transportation System and Coordination and includes Citywide signal timing, operation, software, hardware, and research. Metro Programs conducts plan review, design, and coordination in support of transit projects led by the Los Angeles County Metropolitan Transportation Authority. Tim has worked for LADOT for over 24 years in varying capacities, including leading the Department's Design and Plan Review Bureau, servicing the public and elected officials in District Operations, as lead engineer for the City's Vision Zero transportation safety program, and as project manager for bicycle infrastructure projects. He holds a Bachelor of Science in Mechanical Engineering from the University of Southern California.

Mr. Nhat Phan is a licensed California Traffic Engineer with over 18 years of professional experience spanning construction, environmental, and transportation engineering. He currently serves as a Transportation Engineer for the City of Berkeley, where he leads citywide traffic engineering functions, including traffic signal operations, multimodal corridor planning, development review, and capital improvement projects. Throughout his career, he has held roles with the Cities of Berkeley, Pittsburg, and San Rafael, overseeing traffic studies, signal timing and operations, safety audits, Safe Routes to School programs, and multimodal transportation initiatives. As an instructor for the UC Berkeley Tech Transfer Program, Mr. Phan emphasizes practical application, professional judgment, and real-world case studies to equip transportation professionals with core traffic engineering fundamentals.