School district provided transportation is one way to support student attendance and achievement. By removing the obstacle of getting to school, school districts provide the opportunity for students to learn in school. In a secondary database analysis of 2018-2019 data, this study triangulates student achievement, attendance, and transportation to quantify the implications of state and local transportation policy and to study avoidable absences that lead to low student performance. When comparing students who did and did not receive the offer of transportation, descriptive statistics revealed significant differences for the categories of race identification, meal status, and school. A student offered transportation was present an additional 6.138 days of school in a typical school year, and the offer of transportation was associated with an increase of a student's grade point average (GPA) by 0.177 GPA points. Using a hierarchical multiple linear regression model to examine the offer of transportation and how it is associated with student attendance rate and noncumulative GPA for 9th and 10th grade students, this study estimated that the offer of transportation results in 4.801 percentage point greater attendance rate for a student who receives the offer of transportation and live at 2.0 miles. Additionally, the study identified centered distance, transportation status, the interaction of centered distance and transportation, free and reduced meal status, and marginalized students of color as significant predictors of attendance rate; and meal status, marginalized students of color, gender, and grade level were significant predictors of noncumulative GPA. By estimating the role of transportation to mitigate absences, this study was able to make the policy recommendation to improve student attendance in order to support student achievement. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]