The LongROAD Study – Longitudinal Research on Aging Drivers


In 2016 there were 41.5 million licensed older drivers 65 years or older. This age group is growing faster than any other age group. Older drivers 75-79 saw the largest single-year percentage increase (4.98 percent over the previous year).  Although driving allows older adults to meet their mobility needs and to stay independent, a number of age-related functional impairments, medical conditions and medication side effects can compromise driving abilities.

To understand and meet the safe mobility needs of older adult drivers, the AAA Foundation for Traffic Safety (AAAFTS) launched the Longitudinal Research on Aging Drivers study (LongROAD) with the goals to:

  • Better understand the major protective and risk factors of safe driving in older adults
  • Assess the effects of medical conditions and medications on driving behavior and safety
  • Investigate the mechanisms through which older adults self-regulate their driving behaviors to cope with functional declines as they age
  • Determine the extent, use and effects of new vehicle technology and aftermarket vehicle adaptations among older drivers
  • Identify the determinants and health consequences of driving cessation during the process of aging


Study sites

Bassett Research Institute

Contact Address: Bassett Research Institute
One Atwell Road
Cooperstown, NY 13326
(607) 547-3676

Bassett Medical Center Site

Cobbleskill Study Site


David Strogatz, Ph.D
Site Principal Investigator

Thelma J. Mielenz, Ph.D
Site Principal Investigator

Andrew Johnson
Project Coordinator

Johns Hopkins University

Contact address: John Hopkins Bloomberg School of Public Health
Department of Health, Behavior, and Society
624 N. Broadway, Hampton House, Suite 706
Baltimore, MD 21205
Telephone: (410) 502-5675


Fallstaff Study Site

East Baltimore Campus Study Site


Vanya Jones, Ph.D., MPH
Site Principal Investigator

Taylor D. Parnham, MPH
Project Coordinator

University of Michigan Transportation Research Institute


David W. Eby, Ph.D.
Site Principal Investigator

Lisa J. Molnar, Ph.D.
Site Principal Investigator

Lindsay H. Ryan, Ph.D.
Site Principal Investigator

Linda V. Nyquist. Ph.D.
Project Coordinator

Renée M. St. Louis, MPH
Project Coordinator

Nicole Zanier, BA
Project Coordinator

University of Colorado Anschutz Medical Campus

Contact Address: University of Colorado Anschutz Medical Campus
12469 E. 17th Pl.
Bldg. 400, Room Q09-125
Mail Stop F423
Aurora, CO, 80045


Study Site



Marian E. Betz, MD, MPH
Site Principal Investigator

Carolyn DiGuiseppi, MD, MPH, Ph.D.
Site Principal Investigator

Burlleen Hewitt
Project Coordinator

University of California, San Diego

La Jolla Professional Center


Linda L. Hill, MD, MPH
Site Principal Investigator

Natalie Moursund
Project Coordinator

Data Coordinating Site

Columbia University

Columbia University
622 West 168th St. PH5-505
New York, NY 10032



Guohua Li, Ph.D., MPH
Site Principal Investigator

Barbara Lang, MPH
Project Coordinator

Howard F. Andrews, PhD
Director of the Data Coordinating Center


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