Departmental Affiliations
Center & Institute Affiliations
Johnathon Ehsani, PhD, MPH, uses policy and behavioral research to prevent motor vehicle crashes and advance the health promoting aspects of transportation.
Research Interests
road safety, teen drivers, autonomy and new mobility, vulnerable road users
Additional Links
Experiences & Accomplishments
Dr. Ehsani is an internationally recognized road safety researcher and Associate Professor at Johns Hopkins Bloomberg School of Public Health. He has over 80 peer-reviewed publications on road safety and injury prevention, and has delivered over 100 scientific lectures and invited addresses on the topic.
He uses policy and behavioral research to prevent motor vehicle crashes and advance the health promoting aspects of transportation. Examples of his work include the effectiveness of licensing and examination systems for teen drivers, large scale behavior change clinical trials testing interventions to reduce crashes, and the impact of new mobility products and services including autonomous vehicles, ride sharing, and micromobility.
He is advising the US Department of Transportation and several US states on driver education and licensing policy, and is the current Chair of the National Academic of Science, Engineering and Medicine’s Transportation Research Board Standing Committee on Vehicle User Learning and Competency.
Honors & Awards
- 2023 – Healthy Longevity Catalyst Prize ($50,000 USD) National Academy of Medicine
- 2017 - Outstanding Science, Society for Advancement of Violence and Injury Research
- 2016 – 2019 - Leon S. Robertson Faculty Development Chair in Injury Prevention
- 2012 – 2016 – National Institutes of Health Intramural Research Training Award
- 2014 - Eno Transportation Fellow
- 2009 - Outstanding New Researcher, University of Michigan School of Public Health
- 2008 - 2011 Sir John Monash Scholarship ($150,000 AUD); Australian equivalent to Rhodes or Fulbright Scholarship.
Select Publications
Selected Publications:
Association of learner driver experience on teenager’s crash risk during the first year of independent driving. Ehsani, J. P., Gershon, P., Grant, B., Zhu, C., Klauer, S., Dingus, T., Simons-Morton, B. JAMA Pediatrics. 2020; 174(6):1-8.
Public health principles to inform testing and build trust in automated vehicles. JP Ehsani, J Michael, T Igusa - Injury Prevention, 2019. http://dx.doi.org/10.1136/injuryprev-2019-043136
Naturalistic assessment of the learner license period. JP Ehsani, SG Klauer, C Zhu, P Gershon, TA Dingus et al - Accident Analysis & Prevention, 2017. https://doi.org/10.1016/j.aap.2017.06.014
Geographic variation and trends in opioid-involved crash deaths in Maryland: 2006–2017. M Duren, J Ehsani, B Grant, D Fowler - Accident Analysis & Prevention, 2019. https://doi.org/10.1016/j.aap.2019.01.012
The impact of Michigan's text messaging restriction on motor vehicle crashes. JP Ehsani, CR Bingham, E Ionides, D Childers - Journal of Adolescent Health, 2014. https://doi.org/10.1016/j.jadohealth.2014.01.003