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What We’re Learning

Transportation insecurity has important consequences for people’s ability to connect to opportunity and flourish. Everyday we are learning more about what causes this hardship, who is experiencing it, how it is impacting people and communities, as well as what interventions are effectively moving people to transportation security.


  • Older women waiting for bike on front of truck

    How Transportation Barriers are Hurting Maine and How We Move Forward

    Report from Moving Maine shows that in 2024, 2 in 5 Mainers experienced transportation insecurity with rates being notably high among people between 18-24 years of age and those with disabilities. Report details the association between transportation insecurity and economic opportunity, health, and social isolation.

    DOWNLOAD REPORT

  • Elderly man boarding bus with cane

    2026 wave of the Health and Retirement Study

    The 6-question Transportation Security Index is being included on a Health and Retirement Study (HRS) transportation module that will be fielded in 2026. The University of Michigan’s HRS is a longitudinal panel study that surveys a representative sample of roughly 20,000 people over the age of 50 in the United States every two years, collecting data on such topics as wealth, health, family connections, work, and more.

  • Person with walking stick being assisted out of car

    Opportunities to Improve Patient Transportation Access: Piloting a Transportation Resource Fair with the Saban Community Clinic

    Findings from a pilot conducted by the University of Los Angeles’ Lewis Center for Regional Studies showed that although patients who attended a transportation resource fair at the Saban Health Clinic faced numerous transportation barriers in accessing health care, the average transportation insecurity score among those surveyed indicated low insecurity. This data suggests that those with higher insecurity were not able to attend the event. Strategies for reaching patients, including those with high insecurity, are discussed.

    DOWNLOAD POLICY BRIEF

  • Lonic Logo

    The international standard for identifying health measurements, observations, and documents recognizes TSI.

    Following recommendation’s from the Gravity Project, in 2025 The TSI-16 and the TSI-6 were both encoded in Regenstrief’s LOINC (Logical Observation Identifiers Names and Codes). LOINC provides organizations working in healthcare settings with a universal set of codes related to measurement that enables different systems to exchange consistent information.  

    TSI-16

    TSI-6

  • White paper graphic

    Transportation Insecurity in the Motor City

    White paper examining what transportation insecurity looks like in Detroit, including its prevalence and its relationship to mode use and transportation costs. Findings show 1 in 3 Detroiters experienced transportation insecurity in 2023.

    DOWNLOAD WHITE PAPER

  • County map

    Grafton County West Virginia Community Health Needs Assessment

    Findings show that residents with incomes below $49,999 are significantly more likely than those with higher incomes to report skipping trips, rescheduling appointments, not being able to leave the house, and having their relationships impacted because of problems with transportation.

    DOWNLOAD REPORT

  • Washington highway during sunset

    Regional Mobility Survey for Priority Populations: King, Pierce, and Snohomish Counties (Washington)

    A report examining transportation insecurity among priority populations in King, Pierce, and Snohomish Counties shows that 1 in 5 surveyed experience transportation insecurity and nearly half of respondents with a disability and nearly half of those with low incomes experience moderate/high insecurity.  

    DOWNLOAD REPORT

  • Bus stop at UC Davis with signage

    UC Davis Health to Study How Transportation Impacts Dialysis Patient Outcomes

    Dialysis treatment typically requires patients to travel to treatment multiple times a week. Health researchers at UC Davis are using the Transportation Security Index to understand how transportation insecurity and different modes of transportation impact dialysis patients’ ability to consistently attend dialysis appointments and how such attendance impacts actual dialysis patient health outcomes. 

    READ PRESS RELEASE

  • Minnesota skyline

    Minnesota Department of Transportation Omnibus Public Opinion Survey

    Survey results examining what transportation insecurity looks like in Minnesota, including how it relates to perceptions around the work of MnDOT. Findings show that 26% of Minnesotans experience transportation insecurity.

    DOWNLOAD SURVEY

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