TREDS logo

Training, Research and
Education for Driving Safety


Linda Hill, MD, MPH

Director, UCSD/SDSU General Preventive Medicine Residency Program
Professor, Department of Family Medicine and Public Health, UCSD
Professor, Graduate School of Public Health, SDSU
Chair, Graduate Medical Education Committee, American College of Preventive Medicine
Co-Director, UCSD Injury Epidemiology Prevention and Research Center

Dr. Hill’s leadership provides direction for the program’s research, training, and services projects that aim to reduce injuries and deaths resulting from collisions. Her areas of interest include older drivers, fall prevention, teen drivers and distracted driving. With over 30 years as a practicing physician, she brings lessons from the community to her injury prevention activities. Dr. Hill imparts her expertise through public speaking engagements, publications and teaching. She is recognized nationally as a contributor to prevention research.

Raul Coimbra MD, PhD, FACS
Scientific Advisor

Professor of Surgery and Chief, UCSD Division of Trauma, Surgical Critical Care and Burns Executive Vice Chairman, Department of Surgery, UCSD Medical Center
Director, UCSD Trauma Fellowship
Co-Director, UCSD Injury Epidemiology Prevention and Research Center
Vice-Chairman, American College of Surgeons Committee on Trauma
Council Member and Vice President, San Diego Surgical Society

Dr. Coimbra is strongly committed to promoting effective injury prevention in San Diego County. He is an accomplished teacher and mentor, and has authored numerous journal articles. As an advisor to TREDS, his expertise in trauma and critical care enhances the program’s research and community efforts. His firsthand experience with traffic-related injuries and patient rehabilitation fuels his passion for trauma prevention.

Kevin Patrick MD, MS
Scientific Advisor

Professor, Department of Family Medicine and Public Health, UCSD
Editor-in-Chief, American Journal of Preventive Medicine
Director, Center for Wireless and Population Health Systems, Calit2
Senior Advisor, Robert Wood Johnson Foundation (RWJF) Active Living Research

Dr. Patrick’s research focuses on the use of information and telecommunications technology to measure and improve health-related behaviors of individuals and populations. His primary area of interest is the development of web and mobile systems for health promotion, injury prevention, and wellness. Dr. Patrick advises TREDS on technological innovations and solutions related to traffic safety.

Jill Rybar, MPH
Deputy Director

With over 30 years of experience in the public health arena, Jill brings expertise in program management, training development and research to the team. She directs projects that aim to promote safe driving for older adults and reduce distracted driving. Jill serves on several challenge area committees of California’s Strategic Highway Safety Plan, and is a presenter and co-author on research projects.

Jana Jahns, MEd
Training Coordinator

Jana’s background in health education, curriculum development and teaching at the college level adds a host of experience to the program. She is responsible for the communication and delivery of professional education in support of driving safety, including video production and online training modules. She supervises an internship program for college students preparing for health professions.

Angelica Barrera-Ng, BS
Project Coordinator

Angélica’s contributions to the team include her strong background in health promotion, public health research, and working with diverse populations. She is responsible for the delivery and evaluation of distracted driving programs, and mentors students wanting to gain experience in traffic safety.


  • Robert (Skip) Carter, Deputy Commissioner, California Highway Patrol (Retired)
  • Sandra Carter, Driver Safety Branch, CA Department of Motor Vehicles
  • Kathy Fischer, MD, MPH, Training Faculty, UC San Diego
  • Alex Gonzalez, Sergeant, California Highway Patrol (Retired)
  • D. R. (Ike) Iketani, Assistant Chief, California Highway Patrol (Retired)
  • Dana Ray, Sergeant, Escondido Police Department (Retired)
  • Robert Ticer, Chief of Police, Avon, CO

Student Assistants and Interns

Assistance is provided to support project activities that include literature reviews, material development, data collection and entry, and website maintenance.

  • Sarah Andrade
    SDSU, Graduate School of Public Health, Health Promotion and Behavioral Science
  • Brandon Chao
    UCSD, Undergraduate, Management Science Major
  • Jessa Engelberg
    SDSU-UCSD, Joint Doctoral Program in Public Health
  • Brittany Fung
    UCSD, Undergraduate, Microbiology Major
  • Ariana Padilla
    UCSD, Undergraduate, Structural Engineering Major
  • Sierra Svendsen
    UCSD, Undergraduate, Public Health Major
  • Carolyn Tang
    UCSD, Undergraduate, Pharmacological Chemistry Major
  • Megan Tsui
    UCSD, Undergraduate, Psychology Major