==== Front Innov Aging Innov Aging innovateage Innovation in Aging 2399-5300 Oxford University Press US 10.1093/geroni/igaa057.959 igaa057.959 Abstracts Session 2934 (Poster) Falls, Frailty, and Physical Activity AcademicSubjects/SOC02600 Influence of Driving and Transportation Access on Social Isolation Risk Among Older Adults Smith Matthew 1 Bergeron Caroline 2 Barrett Matthew 1 Eagle Leigh Ann 3 Lachenmayr Sue 3 1 Texas A&M University, College Station, Texas, United States 2 Institut national de santé publique du Québec, Québec City, Quebec, Canada 3 MAC, Salisbury, Maryland, United States 2020 16 12 2020 16 12 2020 4 Suppl 1 Program Abstracts from The GSA 2020 Annual Scientific Meeting “Turning 75: Why Age Matters”299 300 © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America.2020This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.Abstract Background. Transportation is essential to accessing healthcare and community services, but the inability to find transportation may hinder social interactions and connectivity. This study examined driving and transportation access associated with self-reported social isolation risk among adults age 60 years and older. Methods. The Upstream Social Isolation Risk Screener (U-SIRS) was developed to assess social isolation risk among older adults within clinical and community settings. Comprised of 13 items (Cronbach’s alpha=0.80), the U-SIRS assesses physical, emotional, and social support aspects of social isolation. Using an internet-delivered survey, data were analyzed from a national sample of 4,082 adults age 60 years and older. Theta scores for the U-SIRS served as the dependent variable, which were generated using Item Response Theory. An ordinary least squares regression model was fitted to identify transportation-related indicators associated with social isolation risk. Results. Approximately 13% of participants did not drive and 18.2% reported not being able to identify a ride or transportation when needed. Higher U-SIRS scores were reported among participants who did not drive (B=0.034, P=0.020). Lower U-SIRS scores were reported among those who live with a spouse/partner (B=-0.153, P<0.001) and those who reported the ability to get a ride from a family member (B=-0.160, P<0.001), friend (B=-0.256, P<0.001), or taxi (B=-0.032, P=0.044). Every additional source of transportation available significantly reduced participants’ U-SIRS score (B=-0.239, P<0.001). Conclusion. Given transportation options may reflect physical functioning, social networks, and socioeconomic status, study findings suggest transportation access is an important contextual factor associated with social isolation risk.