This policy brief provides a summary of the research detailed in the report "How Transportation Shapes School Choice: Evidence from Baltimore City Public Schools. Technical Report," which used data from administrative records at the Baltimore Education Research Consortium (BERC) to assess whether increases in commute difficulty reduce the likelihood that a student will choose a particular school. Findings revealed that students avoid schools, including selective enrollment schools, that take longer to get to or require taking multiple buses to get to. These results show that transportation influences students' choices about where to attend school in Baltimore and commuting issues restrict students' access to educational opportunity.